retry on very specific eni provision failures - #22002

Merged
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures
Mar 7, 2022
Merged

retry on very specific eni provision failures#22002
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures

Conversation

@zachliu

@zachliuzachliu commented Mar 4, 2022

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In an old PR #14263 we tried to add a "retry" mechanism for triggering new ECS task but it didn't work as expected according to my explanation in #16150.

The TL;DR version is:

  • The immediate API response after sending out the run_task request to aws is not reliable. To make sure our task is really running in good health, we have to wait and send out another describe_tasks request.

This explanation still holds today. Since people start using Fargate nowadays, this issue becomes more and more acute. On a good day, 0.15% Fargate tasks could fail to start due to ENI (AWS Elastic Network Interface) provision failures. However on a bad day, it could rise to 1~2%.

Per recommendations from the AWS support team, we should consider the "triggering an ECS task, waiting for it to be provisioned, checking for its status" steps a single routine that can be retried as a whole.

This PR is largely based on the framework established in #14263.


^ Add meaningful description above

Read the Pull Request Guidelines for more information.
In case of fundamental code change, Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in UPDATING.md.

@boring-cyborgboring-cyborgBot added area:providers provider:amazon AWS/Amazon - related issues labels Mar 4, 2022
@zachliu
zachliuforce-pushed the ecsoperator-retry-on-eni-provisioning-failures branch from b5f1e36 to a6b8be3CompareMarch 4, 2022 21:42
@potiuk
potiuk merged commit 01a1a26 into apache:mainMar 7, 2022
@github-actionsgithub-actionsBot added the okay to merge It's ok to merge this PR as it does not require more tests label Mar 7, 2022
@github-actions

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The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

@zachliu
zachliu deleted the ecsoperator-retry-on-eni-provisioning-failures branch March 7, 2022 15:24
@zachliuzachliu mentioned this pull request Mar 10, 2022
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, '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

retry on very specific eni provision failures - #22002

Merged
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures
Mar 7, 2022
Merged

retry on very specific eni provision failures#22002
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures

Conversation

@zachliu

@zachliuzachliu commented Mar 4, 2022

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Contributor

In an old PR #14263 we tried to add a "retry" mechanism for triggering new ECS task but it didn't work as expected according to my explanation in #16150.

The TL;DR version is:

  • The immediate API response after sending out the run_task request to aws is not reliable. To make sure our task is really running in good health, we have to wait and send out another describe_tasks request.

This explanation still holds today. Since people start using Fargate nowadays, this issue becomes more and more acute. On a good day, 0.15% Fargate tasks could fail to start due to ENI (AWS Elastic Network Interface) provision failures. However on a bad day, it could rise to 1~2%.

Per recommendations from the AWS support team, we should consider the "triggering an ECS task, waiting for it to be provisioned, checking for its status" steps a single routine that can be retried as a whole.

This PR is largely based on the framework established in #14263.


^ Add meaningful description above

Read the Pull Request Guidelines for more information.
In case of fundamental code change, Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in UPDATING.md.

@boring-cyborgboring-cyborgBot added area:providers provider:amazon AWS/Amazon - related issues labels Mar 4, 2022
@zachliu
zachliuforce-pushed the ecsoperator-retry-on-eni-provisioning-failures branch from b5f1e36 to a6b8be3CompareMarch 4, 2022 21:42
@potiuk
potiuk merged commit 01a1a26 into apache:mainMar 7, 2022
@github-actionsgithub-actionsBot added the okay to merge It's ok to merge this PR as it does not require more tests label Mar 7, 2022
@github-actions

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The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

@zachliu
zachliu deleted the ecsoperator-retry-on-eni-provisioning-failures branch March 7, 2022 15:24
@zachliuzachliu mentioned this pull request Mar 10, 2022
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, '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

retry on very specific eni provision failures - #22002

Merged
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures
Mar 7, 2022
Merged

retry on very specific eni provision failures#22002
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures

Conversation

@zachliu

@zachliuzachliu commented Mar 4, 2022

Copy link
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Contributor

In an old PR #14263 we tried to add a "retry" mechanism for triggering new ECS task but it didn't work as expected according to my explanation in #16150.

The TL;DR version is:

  • The immediate API response after sending out the run_task request to aws is not reliable. To make sure our task is really running in good health, we have to wait and send out another describe_tasks request.

This explanation still holds today. Since people start using Fargate nowadays, this issue becomes more and more acute. On a good day, 0.15% Fargate tasks could fail to start due to ENI (AWS Elastic Network Interface) provision failures. However on a bad day, it could rise to 1~2%.

Per recommendations from the AWS support team, we should consider the "triggering an ECS task, waiting for it to be provisioned, checking for its status" steps a single routine that can be retried as a whole.

This PR is largely based on the framework established in #14263.


^ Add meaningful description above

Read the Pull Request Guidelines for more information.
In case of fundamental code change, Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in UPDATING.md.

@boring-cyborgboring-cyborgBot added area:providers provider:amazon AWS/Amazon - related issues labels Mar 4, 2022
@zachliu
zachliuforce-pushed the ecsoperator-retry-on-eni-provisioning-failures branch from b5f1e36 to a6b8be3CompareMarch 4, 2022 21:42
@potiuk
potiuk merged commit 01a1a26 into apache:mainMar 7, 2022
@github-actionsgithub-actionsBot added the okay to merge It's ok to merge this PR as it does not require more tests label Mar 7, 2022
@github-actions

Copy link
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Contributor

The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

@zachliu
zachliu deleted the ecsoperator-retry-on-eni-provisioning-failures branch March 7, 2022 15:24
@zachliuzachliu mentioned this pull request Mar 10, 2022
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@zachliu@potiuk
, '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('^' + ".*" + '
Skip to content

retry on very specific eni provision failures - #22002

Merged
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures
Mar 7, 2022
Merged

retry on very specific eni provision failures#22002
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures

Conversation

@zachliu

@zachliuzachliu commented Mar 4, 2022

Copy link
Copy Markdown
Contributor

In an old PR #14263 we tried to add a "retry" mechanism for triggering new ECS task but it didn't work as expected according to my explanation in #16150.

The TL;DR version is:

  • The immediate API response after sending out the run_task request to aws is not reliable. To make sure our task is really running in good health, we have to wait and send out another describe_tasks request.

This explanation still holds today. Since people start using Fargate nowadays, this issue becomes more and more acute. On a good day, 0.15% Fargate tasks could fail to start due to ENI (AWS Elastic Network Interface) provision failures. However on a bad day, it could rise to 1~2%.

Per recommendations from the AWS support team, we should consider the "triggering an ECS task, waiting for it to be provisioned, checking for its status" steps a single routine that can be retried as a whole.

This PR is largely based on the framework established in #14263.


^ Add meaningful description above

Read the Pull Request Guidelines for more information.
In case of fundamental code change, Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in UPDATING.md.

@boring-cyborgboring-cyborgBot added area:providers provider:amazon AWS/Amazon - related issues labels Mar 4, 2022
@zachliu
zachliuforce-pushed the ecsoperator-retry-on-eni-provisioning-failures branch from b5f1e36 to a6b8be3CompareMarch 4, 2022 21:42
@potiuk
potiuk merged commit 01a1a26 into apache:mainMar 7, 2022
@github-actionsgithub-actionsBot added the okay to merge It's ok to merge this PR as it does not require more tests label Mar 7, 2022
@github-actions

Copy link
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Contributor

The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

@zachliu
zachliu deleted the ecsoperator-retry-on-eni-provisioning-failures branch March 7, 2022 15:24
@zachliuzachliu mentioned this pull request Mar 10, 2022
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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" + '
Skip to content

retry on very specific eni provision failures - #22002

Merged
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures
Mar 7, 2022
Merged

retry on very specific eni provision failures#22002
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures

Conversation

@zachliu

@zachliuzachliu commented Mar 4, 2022

Copy link
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Contributor

In an old PR #14263 we tried to add a "retry" mechanism for triggering new ECS task but it didn't work as expected according to my explanation in #16150.

The TL;DR version is:

  • The immediate API response after sending out the run_task request to aws is not reliable. To make sure our task is really running in good health, we have to wait and send out another describe_tasks request.

This explanation still holds today. Since people start using Fargate nowadays, this issue becomes more and more acute. On a good day, 0.15% Fargate tasks could fail to start due to ENI (AWS Elastic Network Interface) provision failures. However on a bad day, it could rise to 1~2%.

Per recommendations from the AWS support team, we should consider the "triggering an ECS task, waiting for it to be provisioned, checking for its status" steps a single routine that can be retried as a whole.

This PR is largely based on the framework established in #14263.


^ Add meaningful description above

Read the Pull Request Guidelines for more information.
In case of fundamental code change, Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in UPDATING.md.

@boring-cyborgboring-cyborgBot added area:providers provider:amazon AWS/Amazon - related issues labels Mar 4, 2022
@zachliu
zachliuforce-pushed the ecsoperator-retry-on-eni-provisioning-failures branch from b5f1e36 to a6b8be3CompareMarch 4, 2022 21:42
@potiuk
potiuk merged commit 01a1a26 into apache:mainMar 7, 2022
@github-actionsgithub-actionsBot added the okay to merge It's ok to merge this PR as it does not require more tests label Mar 7, 2022
@github-actions

Copy link
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Contributor

The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

@zachliu
zachliu deleted the ecsoperator-retry-on-eni-provisioning-failures branch March 7, 2022 15:24
@zachliuzachliu mentioned this pull request Mar 10, 2022
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@zachliu@potiuk
, '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

retry on very specific eni provision failures - #22002

Merged
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures
Mar 7, 2022
Merged

retry on very specific eni provision failures#22002
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures

Conversation

@zachliu

@zachliuzachliu commented Mar 4, 2022

Copy link
Copy Markdown
Contributor

In an old PR #14263 we tried to add a "retry" mechanism for triggering new ECS task but it didn't work as expected according to my explanation in #16150.

The TL;DR version is:

  • The immediate API response after sending out the run_task request to aws is not reliable. To make sure our task is really running in good health, we have to wait and send out another describe_tasks request.

This explanation still holds today. Since people start using Fargate nowadays, this issue becomes more and more acute. On a good day, 0.15% Fargate tasks could fail to start due to ENI (AWS Elastic Network Interface) provision failures. However on a bad day, it could rise to 1~2%.

Per recommendations from the AWS support team, we should consider the "triggering an ECS task, waiting for it to be provisioned, checking for its status" steps a single routine that can be retried as a whole.

This PR is largely based on the framework established in #14263.


^ Add meaningful description above

Read the Pull Request Guidelines for more information.
In case of fundamental code change, Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in UPDATING.md.

@boring-cyborgboring-cyborgBot added area:providers provider:amazon AWS/Amazon - related issues labels Mar 4, 2022
@zachliu
zachliuforce-pushed the ecsoperator-retry-on-eni-provisioning-failures branch from b5f1e36 to a6b8be3CompareMarch 4, 2022 21:42
@potiuk
potiuk merged commit 01a1a26 into apache:mainMar 7, 2022
@github-actionsgithub-actionsBot added the okay to merge It's ok to merge this PR as it does not require more tests label Mar 7, 2022
@github-actions

Copy link
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The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

@zachliu
zachliu deleted the ecsoperator-retry-on-eni-provisioning-failures branch March 7, 2022 15:24
@zachliuzachliu mentioned this pull request Mar 10, 2022
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2 participants

@zachliu@potiuk
, '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

retry on very specific eni provision failures - #22002

Merged
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures
Mar 7, 2022
Merged

retry on very specific eni provision failures#22002
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures

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@zachliu

@zachliuzachliu commented Mar 4, 2022

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In an old PR #14263 we tried to add a "retry" mechanism for triggering new ECS task but it didn't work as expected according to my explanation in #16150.

The TL;DR version is:

  • The immediate API response after sending out the run_task request to aws is not reliable. To make sure our task is really running in good health, we have to wait and send out another describe_tasks request.

This explanation still holds today. Since people start using Fargate nowadays, this issue becomes more and more acute. On a good day, 0.15% Fargate tasks could fail to start due to ENI (AWS Elastic Network Interface) provision failures. However on a bad day, it could rise to 1~2%.

Per recommendations from the AWS support team, we should consider the "triggering an ECS task, waiting for it to be provisioned, checking for its status" steps a single routine that can be retried as a whole.

This PR is largely based on the framework established in #14263.


^ Add meaningful description above

Read the Pull Request Guidelines for more information.
In case of fundamental code change, Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in UPDATING.md.

@boring-cyborgboring-cyborgBot added area:providers provider:amazon AWS/Amazon - related issues labels Mar 4, 2022
@zachliu
zachliuforce-pushed the ecsoperator-retry-on-eni-provisioning-failures branch from b5f1e36 to a6b8be3CompareMarch 4, 2022 21:42
@potiuk
potiuk merged commit 01a1a26 into apache:mainMar 7, 2022
@github-actionsgithub-actionsBot added the okay to merge It's ok to merge this PR as it does not require more tests label Mar 7, 2022
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The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

@zachliu
zachliu deleted the ecsoperator-retry-on-eni-provisioning-failures branch March 7, 2022 15:24
@zachliuzachliu mentioned this pull request Mar 10, 2022
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, '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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retry on very specific eni provision failures - #22002

Merged
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures
Mar 7, 2022
Merged

retry on very specific eni provision failures#22002
potiuk merged 3 commits into
apache:mainfrom
zachliu:ecsoperator-retry-on-eni-provisioning-failures

Conversation

@zachliu

@zachliuzachliu commented Mar 4, 2022

Copy link
Copy Markdown
Contributor

In an old PR #14263 we tried to add a "retry" mechanism for triggering new ECS task but it didn't work as expected according to my explanation in #16150.

The TL;DR version is:

  • The immediate API response after sending out the run_task request to aws is not reliable. To make sure our task is really running in good health, we have to wait and send out another describe_tasks request.

This explanation still holds today. Since people start using Fargate nowadays, this issue becomes more and more acute. On a good day, 0.15% Fargate tasks could fail to start due to ENI (AWS Elastic Network Interface) provision failures. However on a bad day, it could rise to 1~2%.

Per recommendations from the AWS support team, we should consider the "triggering an ECS task, waiting for it to be provisioned, checking for its status" steps a single routine that can be retried as a whole.

This PR is largely based on the framework established in #14263.


^ Add meaningful description above

Read the Pull Request Guidelines for more information.
In case of fundamental code change, Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in UPDATING.md.

@boring-cyborgboring-cyborgBot added area:providers provider:amazon AWS/Amazon - related issues labels Mar 4, 2022
@zachliu
zachliuforce-pushed the ecsoperator-retry-on-eni-provisioning-failures branch from b5f1e36 to a6b8be3CompareMarch 4, 2022 21:42
@potiuk
potiuk merged commit 01a1a26 into apache:mainMar 7, 2022
@github-actionsgithub-actionsBot added the okay to merge It's ok to merge this PR as it does not require more tests label Mar 7, 2022
@github-actions

Copy link
Copy Markdown
Contributor

The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.

@zachliu
zachliu deleted the ecsoperator-retry-on-eni-provisioning-failures branch March 7, 2022 15:24
@zachliuzachliu mentioned this pull request Mar 10, 2022
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Labels

area:providersokay to mergeIt's ok to merge this PR as it does not require more testsprovider:amazonAWS/Amazon - related issues

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None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@zachliu@potiuk