Switch remaining x64 queues to AL3 - #115387

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Switch remaining x64 queues to AL3#115387
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  • Switch remaining x64 helix queues to Azure Linux 3.
  • Reordered the long list of configs to be VM first, then container, all alpha ordered.
  • We do not have any Arm64 Azure Linux 3 VMs and should change that.
  • Not changing/adding any raw VM usage at this time.
  • Need to run outerloop tests for this PR (the changes are in outerloop config)
  • Related: Revert "Switch libraries testing to Ubuntu 22 temporarily" #115312

CopilotAI review requested due to automatic review settings May 7, 2025 22:40
@github-actionsgithub-actionsBot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label May 7, 2025

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Pull Request Overview

This PR updates the remaining x64 Helix queues to use Azure Linux 3 and reorders the configuration list.

  • Replaces Ubuntu-based queue references with azurelinux.3 in multiple configurations.
  • Updates image references for CentOS, Fedora, Ubuntu, and Debian queues accordingly.
Comments suppressed due to low confidence (1)

eng/pipelines/libraries/helix-queues-setup.yml:61

  • [nitpick] There is an inconsistency in the casing between the original 'AzureLinux.3.0.Amd64.Open' and the updated 'azurelinux.3.Amd64.open'. Consider using consistent capitalization throughout for clarity.
- (AzureLinux.3.0.Amd64.Open)azurelinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-amd64

Comment threadeng/pipelines/libraries/helix-queues-setup.yml
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/azp run runtime-libraries-coreclr outerloop-linux

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Azure Pipelines successfully started running 1 pipeline(s).

@jkotasjkotas added area-Infrastructure and removed needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners labels May 8, 2025
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@richlander

richlander commented May 8, 2025

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Failures like the following seem like a machine configuration issue. There are many of them.

 System.Net.Sockets.Tests.SendPacketsAsync.SendPacketsElement_FileStreamLargeCount_Throws [FAIL]
System.IO.IOException : No file descriptors available :'/tmp/ropucomr.mjl_.ctor_39'
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>
System.Net.Sockets.Tests.SendPacketsAsync.Disposed_Throw [FAIL]
System.OutOfMemoryException : Exception of type'System.OutOfMemoryException' was thrown.
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>

@ilyas1974 -- can you run ulimit -a on the Ubuntu 22.04 and Azure Linux 3 VMs? We need to see what the difference is. I doubt the test code is at issue. Or how do I do this myself?

@ilyas1974

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Will see what I can do about getting you this information later today. Here are the instructions for self-service: https://dev.azure.com/dnceng/internal/_wiki/wikis/DNCEng%20Services%20Wiki/915/Investigating-Helix-VM-images

@ilyas1974

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Azure Linux 3

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31700
max locked memory (kbytes, -l) 8192
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31700
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

Ubuntu 22.04

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31733
max locked memory (kbytes, -l) 1016148
max memory size (kbytes, -m) unlimited
open files (-n) 16384
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31733
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

@richlander

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Thanks! Looks like -n is the problem. It is the difference I was expecting. We need to set that to the same value as Ubuntu. Does the Ubuntu VM just come that way or do we set it some way?

@ilyas1974

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This is the way the system comes to us. While we install software on systems - based on our customer's needs, we don't make any changes to the OS.

@akoeplinger

akoeplinger commented May 8, 2025

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Nice find. We need that same change for Azure Linux (or any other VM host we use).

Can that happen for the next roll-out? If not, we're going to need an off-cycle deployment.

@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 14, 2025
@richlander
richlander deleted the vm-linux-host branch February 5, 2026 22:56
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@richlander@ilyas1974@akoeplinger@jkotas
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Skip to content

Switch remaining x64 queues to AL3 - #115387

Closed
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host
Closed

Switch remaining x64 queues to AL3#115387
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host

Conversation

@richlander

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  • Switch remaining x64 helix queues to Azure Linux 3.
  • Reordered the long list of configs to be VM first, then container, all alpha ordered.
  • We do not have any Arm64 Azure Linux 3 VMs and should change that.
  • Not changing/adding any raw VM usage at this time.
  • Need to run outerloop tests for this PR (the changes are in outerloop config)
  • Related: Revert "Switch libraries testing to Ubuntu 22 temporarily" #115312

CopilotAI review requested due to automatic review settings May 7, 2025 22:40
@github-actionsgithub-actionsBot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label May 7, 2025

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Pull Request Overview

This PR updates the remaining x64 Helix queues to use Azure Linux 3 and reorders the configuration list.

  • Replaces Ubuntu-based queue references with azurelinux.3 in multiple configurations.
  • Updates image references for CentOS, Fedora, Ubuntu, and Debian queues accordingly.
Comments suppressed due to low confidence (1)

eng/pipelines/libraries/helix-queues-setup.yml:61

  • [nitpick] There is an inconsistency in the casing between the original 'AzureLinux.3.0.Amd64.Open' and the updated 'azurelinux.3.Amd64.open'. Consider using consistent capitalization throughout for clarity.
- (AzureLinux.3.0.Amd64.Open)azurelinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-amd64

Comment threadeng/pipelines/libraries/helix-queues-setup.yml
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/azp run runtime-libraries-coreclr outerloop-linux

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Azure Pipelines successfully started running 1 pipeline(s).

@jkotasjkotas added area-Infrastructure and removed needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners labels May 8, 2025
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Tagging subscribers to this area: @dotnet/runtime-infrastructure
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@richlander

richlander commented May 8, 2025

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Failures like the following seem like a machine configuration issue. There are many of them.

 System.Net.Sockets.Tests.SendPacketsAsync.SendPacketsElement_FileStreamLargeCount_Throws [FAIL]
System.IO.IOException : No file descriptors available :'/tmp/ropucomr.mjl_.ctor_39'
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>
System.Net.Sockets.Tests.SendPacketsAsync.Disposed_Throw [FAIL]
System.OutOfMemoryException : Exception of type'System.OutOfMemoryException' was thrown.
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>

@ilyas1974 -- can you run ulimit -a on the Ubuntu 22.04 and Azure Linux 3 VMs? We need to see what the difference is. I doubt the test code is at issue. Or how do I do this myself?

@ilyas1974

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Will see what I can do about getting you this information later today. Here are the instructions for self-service: https://dev.azure.com/dnceng/internal/_wiki/wikis/DNCEng%20Services%20Wiki/915/Investigating-Helix-VM-images

@ilyas1974

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Azure Linux 3

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31700
max locked memory (kbytes, -l) 8192
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31700
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

Ubuntu 22.04

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31733
max locked memory (kbytes, -l) 1016148
max memory size (kbytes, -m) unlimited
open files (-n) 16384
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31733
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

@richlander

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Thanks! Looks like -n is the problem. It is the difference I was expecting. We need to set that to the same value as Ubuntu. Does the Ubuntu VM just come that way or do we set it some way?

@ilyas1974

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This is the way the system comes to us. While we install software on systems - based on our customer's needs, we don't make any changes to the OS.

@akoeplinger

akoeplinger commented May 8, 2025

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@richlander

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Nice find. We need that same change for Azure Linux (or any other VM host we use).

Can that happen for the next roll-out? If not, we're going to need an off-cycle deployment.

@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 14, 2025
@richlander
richlander deleted the vm-linux-host branch February 5, 2026 22:56
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@richlander@ilyas1974@akoeplinger@jkotas
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Switch remaining x64 queues to AL3 - #115387

Closed
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host
Closed

Switch remaining x64 queues to AL3#115387
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host

Conversation

@richlander

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  • Switch remaining x64 helix queues to Azure Linux 3.
  • Reordered the long list of configs to be VM first, then container, all alpha ordered.
  • We do not have any Arm64 Azure Linux 3 VMs and should change that.
  • Not changing/adding any raw VM usage at this time.
  • Need to run outerloop tests for this PR (the changes are in outerloop config)
  • Related: Revert "Switch libraries testing to Ubuntu 22 temporarily" #115312

CopilotAI review requested due to automatic review settings May 7, 2025 22:40
@github-actionsgithub-actionsBot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label May 7, 2025

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Pull Request Overview

This PR updates the remaining x64 Helix queues to use Azure Linux 3 and reorders the configuration list.

  • Replaces Ubuntu-based queue references with azurelinux.3 in multiple configurations.
  • Updates image references for CentOS, Fedora, Ubuntu, and Debian queues accordingly.
Comments suppressed due to low confidence (1)

eng/pipelines/libraries/helix-queues-setup.yml:61

  • [nitpick] There is an inconsistency in the casing between the original 'AzureLinux.3.0.Amd64.Open' and the updated 'azurelinux.3.Amd64.open'. Consider using consistent capitalization throughout for clarity.
- (AzureLinux.3.0.Amd64.Open)azurelinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-amd64

Comment threadeng/pipelines/libraries/helix-queues-setup.yml
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/azp run runtime-libraries-coreclr outerloop-linux

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Azure Pipelines successfully started running 1 pipeline(s).

@jkotasjkotas added area-Infrastructure and removed needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners labels May 8, 2025
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Tagging subscribers to this area: @dotnet/runtime-infrastructure
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@richlander

richlander commented May 8, 2025

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Failures like the following seem like a machine configuration issue. There are many of them.

 System.Net.Sockets.Tests.SendPacketsAsync.SendPacketsElement_FileStreamLargeCount_Throws [FAIL]
System.IO.IOException : No file descriptors available :'/tmp/ropucomr.mjl_.ctor_39'
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>
System.Net.Sockets.Tests.SendPacketsAsync.Disposed_Throw [FAIL]
System.OutOfMemoryException : Exception of type'System.OutOfMemoryException' was thrown.
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>

@ilyas1974 -- can you run ulimit -a on the Ubuntu 22.04 and Azure Linux 3 VMs? We need to see what the difference is. I doubt the test code is at issue. Or how do I do this myself?

@ilyas1974

Copy link
Copy Markdown

Will see what I can do about getting you this information later today. Here are the instructions for self-service: https://dev.azure.com/dnceng/internal/_wiki/wikis/DNCEng%20Services%20Wiki/915/Investigating-Helix-VM-images

@ilyas1974

Copy link
Copy Markdown

Azure Linux 3

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31700
max locked memory (kbytes, -l) 8192
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31700
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

Ubuntu 22.04

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31733
max locked memory (kbytes, -l) 1016148
max memory size (kbytes, -m) unlimited
open files (-n) 16384
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31733
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

@richlander

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MemberAuthor

Thanks! Looks like -n is the problem. It is the difference I was expecting. We need to set that to the same value as Ubuntu. Does the Ubuntu VM just come that way or do we set it some way?

@ilyas1974

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Copy Markdown

This is the way the system comes to us. While we install software on systems - based on our customer's needs, we don't make any changes to the OS.

@akoeplinger

akoeplinger commented May 8, 2025

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@richlander

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Nice find. We need that same change for Azure Linux (or any other VM host we use).

Can that happen for the next roll-out? If not, we're going to need an off-cycle deployment.

@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 14, 2025
@richlander
richlander deleted the vm-linux-host branch February 5, 2026 22:56
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Successfully merging this pull request may close these issues.

5 participants

@richlander@ilyas1974@akoeplinger@jkotas
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Switch remaining x64 queues to AL3 - #115387

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richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host
Closed

Switch remaining x64 queues to AL3#115387
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host

Conversation

@richlander

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  • Switch remaining x64 helix queues to Azure Linux 3.
  • Reordered the long list of configs to be VM first, then container, all alpha ordered.
  • We do not have any Arm64 Azure Linux 3 VMs and should change that.
  • Not changing/adding any raw VM usage at this time.
  • Need to run outerloop tests for this PR (the changes are in outerloop config)
  • Related: Revert "Switch libraries testing to Ubuntu 22 temporarily" #115312

CopilotAI review requested due to automatic review settings May 7, 2025 22:40
@github-actionsgithub-actionsBot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label May 7, 2025

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Pull Request Overview

This PR updates the remaining x64 Helix queues to use Azure Linux 3 and reorders the configuration list.

  • Replaces Ubuntu-based queue references with azurelinux.3 in multiple configurations.
  • Updates image references for CentOS, Fedora, Ubuntu, and Debian queues accordingly.
Comments suppressed due to low confidence (1)

eng/pipelines/libraries/helix-queues-setup.yml:61

  • [nitpick] There is an inconsistency in the casing between the original 'AzureLinux.3.0.Amd64.Open' and the updated 'azurelinux.3.Amd64.open'. Consider using consistent capitalization throughout for clarity.
- (AzureLinux.3.0.Amd64.Open)azurelinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-amd64

Comment threadeng/pipelines/libraries/helix-queues-setup.yml
@richlander

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/azp run runtime-libraries-coreclr outerloop-linux

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Azure Pipelines successfully started running 1 pipeline(s).

@jkotasjkotas added area-Infrastructure and removed needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners labels May 8, 2025
@dotnet-policy-service

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Tagging subscribers to this area: @dotnet/runtime-infrastructure
See info in area-owners.md if you want to be subscribed.

@richlander

richlander commented May 8, 2025

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Failures like the following seem like a machine configuration issue. There are many of them.

 System.Net.Sockets.Tests.SendPacketsAsync.SendPacketsElement_FileStreamLargeCount_Throws [FAIL]
System.IO.IOException : No file descriptors available :'/tmp/ropucomr.mjl_.ctor_39'
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>
System.Net.Sockets.Tests.SendPacketsAsync.Disposed_Throw [FAIL]
System.OutOfMemoryException : Exception of type'System.OutOfMemoryException' was thrown.
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>

@ilyas1974 -- can you run ulimit -a on the Ubuntu 22.04 and Azure Linux 3 VMs? We need to see what the difference is. I doubt the test code is at issue. Or how do I do this myself?

@ilyas1974

Copy link
Copy Markdown

Will see what I can do about getting you this information later today. Here are the instructions for self-service: https://dev.azure.com/dnceng/internal/_wiki/wikis/DNCEng%20Services%20Wiki/915/Investigating-Helix-VM-images

@ilyas1974

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Azure Linux 3

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31700
max locked memory (kbytes, -l) 8192
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31700
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

Ubuntu 22.04

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31733
max locked memory (kbytes, -l) 1016148
max memory size (kbytes, -m) unlimited
open files (-n) 16384
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31733
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

@richlander

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Thanks! Looks like -n is the problem. It is the difference I was expecting. We need to set that to the same value as Ubuntu. Does the Ubuntu VM just come that way or do we set it some way?

@ilyas1974

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This is the way the system comes to us. While we install software on systems - based on our customer's needs, we don't make any changes to the OS.

@akoeplinger

akoeplinger commented May 8, 2025

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Nice find. We need that same change for Azure Linux (or any other VM host we use).

Can that happen for the next roll-out? If not, we're going to need an off-cycle deployment.

@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 14, 2025
@richlander
richlander deleted the vm-linux-host branch February 5, 2026 22:56
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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Switch remaining x64 queues to AL3 - #115387

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Switch remaining x64 queues to AL3#115387
richlander wants to merge 2 commits into
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@richlander

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  • Switch remaining x64 helix queues to Azure Linux 3.
  • Reordered the long list of configs to be VM first, then container, all alpha ordered.
  • We do not have any Arm64 Azure Linux 3 VMs and should change that.
  • Not changing/adding any raw VM usage at this time.
  • Need to run outerloop tests for this PR (the changes are in outerloop config)
  • Related: Revert "Switch libraries testing to Ubuntu 22 temporarily" #115312

CopilotAI review requested due to automatic review settings May 7, 2025 22:40
@github-actionsgithub-actionsBot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label May 7, 2025

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Pull Request Overview

This PR updates the remaining x64 Helix queues to use Azure Linux 3 and reorders the configuration list.

  • Replaces Ubuntu-based queue references with azurelinux.3 in multiple configurations.
  • Updates image references for CentOS, Fedora, Ubuntu, and Debian queues accordingly.
Comments suppressed due to low confidence (1)

eng/pipelines/libraries/helix-queues-setup.yml:61

  • [nitpick] There is an inconsistency in the casing between the original 'AzureLinux.3.0.Amd64.Open' and the updated 'azurelinux.3.Amd64.open'. Consider using consistent capitalization throughout for clarity.
- (AzureLinux.3.0.Amd64.Open)azurelinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-amd64

Comment threadeng/pipelines/libraries/helix-queues-setup.yml
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/azp run runtime-libraries-coreclr outerloop-linux

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Azure Pipelines successfully started running 1 pipeline(s).

@jkotasjkotas added area-Infrastructure and removed needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners labels May 8, 2025
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@richlander

richlander commented May 8, 2025

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Failures like the following seem like a machine configuration issue. There are many of them.

 System.Net.Sockets.Tests.SendPacketsAsync.SendPacketsElement_FileStreamLargeCount_Throws [FAIL]
System.IO.IOException : No file descriptors available :'/tmp/ropucomr.mjl_.ctor_39'
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>
System.Net.Sockets.Tests.SendPacketsAsync.Disposed_Throw [FAIL]
System.OutOfMemoryException : Exception of type'System.OutOfMemoryException' was thrown.
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>

@ilyas1974 -- can you run ulimit -a on the Ubuntu 22.04 and Azure Linux 3 VMs? We need to see what the difference is. I doubt the test code is at issue. Or how do I do this myself?

@ilyas1974

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Will see what I can do about getting you this information later today. Here are the instructions for self-service: https://dev.azure.com/dnceng/internal/_wiki/wikis/DNCEng%20Services%20Wiki/915/Investigating-Helix-VM-images

@ilyas1974

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Azure Linux 3

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31700
max locked memory (kbytes, -l) 8192
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31700
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

Ubuntu 22.04

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31733
max locked memory (kbytes, -l) 1016148
max memory size (kbytes, -m) unlimited
open files (-n) 16384
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31733
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

@richlander

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Thanks! Looks like -n is the problem. It is the difference I was expecting. We need to set that to the same value as Ubuntu. Does the Ubuntu VM just come that way or do we set it some way?

@ilyas1974

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This is the way the system comes to us. While we install software on systems - based on our customer's needs, we don't make any changes to the OS.

@akoeplinger

akoeplinger commented May 8, 2025

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@richlander

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Nice find. We need that same change for Azure Linux (or any other VM host we use).

Can that happen for the next roll-out? If not, we're going to need an off-cycle deployment.

@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 14, 2025
@richlander
richlander deleted the vm-linux-host branch February 5, 2026 22:56
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@richlander@ilyas1974@akoeplinger@jkotas
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Switch remaining x64 queues to AL3 - #115387

Closed
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host
Closed

Switch remaining x64 queues to AL3#115387
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host

Conversation

@richlander

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  • Switch remaining x64 helix queues to Azure Linux 3.
  • Reordered the long list of configs to be VM first, then container, all alpha ordered.
  • We do not have any Arm64 Azure Linux 3 VMs and should change that.
  • Not changing/adding any raw VM usage at this time.
  • Need to run outerloop tests for this PR (the changes are in outerloop config)
  • Related: Revert "Switch libraries testing to Ubuntu 22 temporarily" #115312

CopilotAI review requested due to automatic review settings May 7, 2025 22:40
@github-actionsgithub-actionsBot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label May 7, 2025

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Pull Request Overview

This PR updates the remaining x64 Helix queues to use Azure Linux 3 and reorders the configuration list.

  • Replaces Ubuntu-based queue references with azurelinux.3 in multiple configurations.
  • Updates image references for CentOS, Fedora, Ubuntu, and Debian queues accordingly.
Comments suppressed due to low confidence (1)

eng/pipelines/libraries/helix-queues-setup.yml:61

  • [nitpick] There is an inconsistency in the casing between the original 'AzureLinux.3.0.Amd64.Open' and the updated 'azurelinux.3.Amd64.open'. Consider using consistent capitalization throughout for clarity.
- (AzureLinux.3.0.Amd64.Open)azurelinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-amd64

Comment threadeng/pipelines/libraries/helix-queues-setup.yml
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/azp run runtime-libraries-coreclr outerloop-linux

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Azure Pipelines successfully started running 1 pipeline(s).

@jkotasjkotas added area-Infrastructure and removed needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners labels May 8, 2025
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Tagging subscribers to this area: @dotnet/runtime-infrastructure
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@richlander

richlander commented May 8, 2025

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Failures like the following seem like a machine configuration issue. There are many of them.

 System.Net.Sockets.Tests.SendPacketsAsync.SendPacketsElement_FileStreamLargeCount_Throws [FAIL]
System.IO.IOException : No file descriptors available :'/tmp/ropucomr.mjl_.ctor_39'
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>
System.Net.Sockets.Tests.SendPacketsAsync.Disposed_Throw [FAIL]
System.OutOfMemoryException : Exception of type'System.OutOfMemoryException' was thrown.
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>

@ilyas1974 -- can you run ulimit -a on the Ubuntu 22.04 and Azure Linux 3 VMs? We need to see what the difference is. I doubt the test code is at issue. Or how do I do this myself?

@ilyas1974

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Will see what I can do about getting you this information later today. Here are the instructions for self-service: https://dev.azure.com/dnceng/internal/_wiki/wikis/DNCEng%20Services%20Wiki/915/Investigating-Helix-VM-images

@ilyas1974

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Azure Linux 3

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31700
max locked memory (kbytes, -l) 8192
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31700
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

Ubuntu 22.04

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31733
max locked memory (kbytes, -l) 1016148
max memory size (kbytes, -m) unlimited
open files (-n) 16384
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31733
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

@richlander

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MemberAuthor

Thanks! Looks like -n is the problem. It is the difference I was expecting. We need to set that to the same value as Ubuntu. Does the Ubuntu VM just come that way or do we set it some way?

@ilyas1974

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This is the way the system comes to us. While we install software on systems - based on our customer's needs, we don't make any changes to the OS.

@akoeplinger

akoeplinger commented May 8, 2025

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@richlander

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Nice find. We need that same change for Azure Linux (or any other VM host we use).

Can that happen for the next roll-out? If not, we're going to need an off-cycle deployment.

@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 14, 2025
@richlander
richlander deleted the vm-linux-host branch February 5, 2026 22:56
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5 participants

@richlander@ilyas1974@akoeplinger@jkotas
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Switch remaining x64 queues to AL3 - #115387

Closed
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host
Closed

Switch remaining x64 queues to AL3#115387
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host

Conversation

@richlander

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  • Switch remaining x64 helix queues to Azure Linux 3.
  • Reordered the long list of configs to be VM first, then container, all alpha ordered.
  • We do not have any Arm64 Azure Linux 3 VMs and should change that.
  • Not changing/adding any raw VM usage at this time.
  • Need to run outerloop tests for this PR (the changes are in outerloop config)
  • Related: Revert "Switch libraries testing to Ubuntu 22 temporarily" #115312

CopilotAI review requested due to automatic review settings May 7, 2025 22:40
@github-actionsgithub-actionsBot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label May 7, 2025

CopilotAI left a comment

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Pull Request Overview

This PR updates the remaining x64 Helix queues to use Azure Linux 3 and reorders the configuration list.

  • Replaces Ubuntu-based queue references with azurelinux.3 in multiple configurations.
  • Updates image references for CentOS, Fedora, Ubuntu, and Debian queues accordingly.
Comments suppressed due to low confidence (1)

eng/pipelines/libraries/helix-queues-setup.yml:61

  • [nitpick] There is an inconsistency in the casing between the original 'AzureLinux.3.0.Amd64.Open' and the updated 'azurelinux.3.Amd64.open'. Consider using consistent capitalization throughout for clarity.
- (AzureLinux.3.0.Amd64.Open)azurelinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-amd64

Comment threadeng/pipelines/libraries/helix-queues-setup.yml
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/azp run runtime-libraries-coreclr outerloop-linux

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Azure Pipelines successfully started running 1 pipeline(s).

@jkotasjkotas added area-Infrastructure and removed needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners labels May 8, 2025
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Tagging subscribers to this area: @dotnet/runtime-infrastructure
See info in area-owners.md if you want to be subscribed.

@richlander

richlander commented May 8, 2025

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Failures like the following seem like a machine configuration issue. There are many of them.

 System.Net.Sockets.Tests.SendPacketsAsync.SendPacketsElement_FileStreamLargeCount_Throws [FAIL]
System.IO.IOException : No file descriptors available :'/tmp/ropucomr.mjl_.ctor_39'
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>
System.Net.Sockets.Tests.SendPacketsAsync.Disposed_Throw [FAIL]
System.OutOfMemoryException : Exception of type'System.OutOfMemoryException' was thrown.
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>

@ilyas1974 -- can you run ulimit -a on the Ubuntu 22.04 and Azure Linux 3 VMs? We need to see what the difference is. I doubt the test code is at issue. Or how do I do this myself?

@ilyas1974

Copy link
Copy Markdown

Will see what I can do about getting you this information later today. Here are the instructions for self-service: https://dev.azure.com/dnceng/internal/_wiki/wikis/DNCEng%20Services%20Wiki/915/Investigating-Helix-VM-images

@ilyas1974

Copy link
Copy Markdown

Azure Linux 3

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31700
max locked memory (kbytes, -l) 8192
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31700
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

Ubuntu 22.04

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31733
max locked memory (kbytes, -l) 1016148
max memory size (kbytes, -m) unlimited
open files (-n) 16384
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31733
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

@richlander

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MemberAuthor

Thanks! Looks like -n is the problem. It is the difference I was expecting. We need to set that to the same value as Ubuntu. Does the Ubuntu VM just come that way or do we set it some way?

@ilyas1974

Copy link
Copy Markdown

This is the way the system comes to us. While we install software on systems - based on our customer's needs, we don't make any changes to the OS.

@akoeplinger

akoeplinger commented May 8, 2025

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@richlander

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MemberAuthor

Nice find. We need that same change for Azure Linux (or any other VM host we use).

Can that happen for the next roll-out? If not, we're going to need an off-cycle deployment.

@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jun 14, 2025
@richlander
richlander deleted the vm-linux-host branch February 5, 2026 22:56
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Status: Done

Development

Successfully merging this pull request may close these issues.

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@richlander@ilyas1974@akoeplinger@jkotas
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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Switch remaining x64 queues to AL3 - #115387

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richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host
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Switch remaining x64 queues to AL3#115387
richlander wants to merge 2 commits into
dotnet:mainfrom
richlander:vm-linux-host

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@richlander

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  • Switch remaining x64 helix queues to Azure Linux 3.
  • Reordered the long list of configs to be VM first, then container, all alpha ordered.
  • We do not have any Arm64 Azure Linux 3 VMs and should change that.
  • Not changing/adding any raw VM usage at this time.
  • Need to run outerloop tests for this PR (the changes are in outerloop config)
  • Related: Revert "Switch libraries testing to Ubuntu 22 temporarily" #115312

CopilotAI review requested due to automatic review settings May 7, 2025 22:40
@github-actionsgithub-actionsBot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label May 7, 2025

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Pull Request Overview

This PR updates the remaining x64 Helix queues to use Azure Linux 3 and reorders the configuration list.

  • Replaces Ubuntu-based queue references with azurelinux.3 in multiple configurations.
  • Updates image references for CentOS, Fedora, Ubuntu, and Debian queues accordingly.
Comments suppressed due to low confidence (1)

eng/pipelines/libraries/helix-queues-setup.yml:61

  • [nitpick] There is an inconsistency in the casing between the original 'AzureLinux.3.0.Amd64.Open' and the updated 'azurelinux.3.Amd64.open'. Consider using consistent capitalization throughout for clarity.
- (AzureLinux.3.0.Amd64.Open)azurelinux.3.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-amd64

Comment threadeng/pipelines/libraries/helix-queues-setup.yml
@richlander

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/azp run runtime-libraries-coreclr outerloop-linux

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Azure Pipelines successfully started running 1 pipeline(s).

@jkotasjkotas added area-Infrastructure and removed needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners labels May 8, 2025
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Tagging subscribers to this area: @dotnet/runtime-infrastructure
See info in area-owners.md if you want to be subscribed.

@richlander

richlander commented May 8, 2025

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Failures like the following seem like a machine configuration issue. There are many of them.

 System.Net.Sockets.Tests.SendPacketsAsync.SendPacketsElement_FileStreamLargeCount_Throws [FAIL]
System.IO.IOException : No file descriptors available :'/tmp/ropucomr.mjl_.ctor_39'
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>
System.Net.Sockets.Tests.SendPacketsAsync.Disposed_Throw [FAIL]
System.OutOfMemoryException : Exception of type'System.OutOfMemoryException' was thrown.
Stack Trace:
<exception thrown while retrieving exception stack trace: Exception of type'System.OutOfMemoryException' was thrown.>

@ilyas1974 -- can you run ulimit -a on the Ubuntu 22.04 and Azure Linux 3 VMs? We need to see what the difference is. I doubt the test code is at issue. Or how do I do this myself?

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Will see what I can do about getting you this information later today. Here are the instructions for self-service: https://dev.azure.com/dnceng/internal/_wiki/wikis/DNCEng%20Services%20Wiki/915/Investigating-Helix-VM-images

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Azure Linux 3

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31700
max locked memory (kbytes, -l) 8192
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31700
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

Ubuntu 22.04

real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31733
max locked memory (kbytes, -l) 1016148
max memory size (kbytes, -m) unlimited
open files (-n) 16384
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31733
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

@richlander

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Thanks! Looks like -n is the problem. It is the difference I was expecting. We need to set that to the same value as Ubuntu. Does the Ubuntu VM just come that way or do we set it some way?

@ilyas1974

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This is the way the system comes to us. While we install software on systems - based on our customer's needs, we don't make any changes to the OS.

@akoeplinger

akoeplinger commented May 8, 2025

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@richlander

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Nice find. We need that same change for Azure Linux (or any other VM host we use).

Can that happen for the next roll-out? If not, we're going to need an off-cycle deployment.

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@richlander
richlander deleted the vm-linux-host branch February 5, 2026 22:56
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