Backfill empty and resilver stale backup #954

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#1073
Open
Backfill empty and resilver stale backup#954
#1073

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@enigbe
enigbe
opened on Jun 30, 2026

In #692 we introduced tiered storage to ldk-node, with options to configure a SQLite backup and ephemeral stores alongside the primary store. This raises two related gaps for nodes that enable backup after they already have existing state:

  1. Backfilling an empty backup store: If a pre-existing node enables backup for the first time, the backup store starts empty while the primary store already holds data. We need to detect this case and use MigratableKVStore to backfill the backup from the primary before normal operation continues.

  2. Re-silvering a stale backup: If backup is enabled, then disabled, then re-enabled later, the backup will have missed any writes that happened while it was off. We need a way to detect that the backup is stale relative to the primary and resilver it.

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      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
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} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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      Backfill empty and resilver stale backup #954
      Open
      #1073
      Open
      Backfill empty and resilver stale backup#954
      #1073
      Description
      @enigbe
      enigbe
      opened on Jun 30, 2026
      In #692 we introduced tiered storage to ldk-node, with options to configure a SQLite backup and ephemeral stores alongside the primary store. This raises two related gaps for nodes that enable backup after they already have existing state:
      1. Backfilling an empty backup store: If a pre-existing node enables backup for the first time, the backup store starts empty while the primary store already holds data. We need to detect this case and use MigratableKVStore to backfill the backup from the primary before normal operation continues.
      2. Re-silvering a stale backup: If backup is enabled, then disabled, then re-enabled later, the backup will have missed any writes that happened while it was off. We need a way to detect that the backup is stale relative to the primary and resilver it.
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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");
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} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

          Skip to content
          Backfill empty and resilver stale backup #954
          Open
          #1073
          Open
          Backfill empty and resilver stale backup#954
          #1073
          Description
          @enigbe
          enigbe
          opened on Jun 30, 2026
          In #692 we introduced tiered storage to ldk-node, with options to configure a SQLite backup and ephemeral stores alongside the primary store. This raises two related gaps for nodes that enable backup after they already have existing state:
          1. Backfilling an empty backup store: If a pre-existing node enables backup for the first time, the backup store starts empty while the primary store already holds data. We need to detect this case and use MigratableKVStore to backfill the backup from the primary before normal operation continues.
          2. Re-silvering a stale backup: If backup is enabled, then disabled, then re-enabled later, the backup will have missed any writes that happened while it was off. We need a way to detect that the backup is stale relative to the primary and resilver it.
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, '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");
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              Backfill empty and resilver stale backup #954
              Open
              #1073
              Open
              Backfill empty and resilver stale backup#954
              #1073
              Description
              @enigbe
              enigbe
              opened on Jun 30, 2026
              In #692 we introduced tiered storage to ldk-node, with options to configure a SQLite backup and ephemeral stores alongside the primary store. This raises two related gaps for nodes that enable backup after they already have existing state:
              1. Backfilling an empty backup store: If a pre-existing node enables backup for the first time, the backup store starts empty while the primary store already holds data. We need to detect this case and use MigratableKVStore to backfill the backup from the primary before normal operation continues.
              2. Re-silvering a stale backup: If backup is enabled, then disabled, then re-enabled later, the backup will have missed any writes that happened while it was off. We need a way to detect that the backup is stale relative to the primary and resilver it.
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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");
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} 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
                  Backfill empty and resilver stale backup #954
                  Open
                  #1073
                  Open
                  Backfill empty and resilver stale backup#954
                  #1073
                  Description
                  @enigbe
                  enigbe
                  opened on Jun 30, 2026
                  In #692 we introduced tiered storage to ldk-node, with options to configure a SQLite backup and ephemeral stores alongside the primary store. This raises two related gaps for nodes that enable backup after they already have existing state:
                  1. Backfilling an empty backup store: If a pre-existing node enables backup for the first time, the backup store starts empty while the primary store already holds data. We need to detect this case and use MigratableKVStore to backfill the backup from the primary before normal operation continues.
                  2. Re-silvering a stale backup: If backup is enabled, then disabled, then re-enabled later, the backup will have missed any writes that happened while it was off. We need a way to detect that the backup is stale relative to the primary and resilver it.
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, '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");
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                      Skip to content
                      Backfill empty and resilver stale backup #954
                      Open
                      #1073
                      Open
                      Backfill empty and resilver stale backup#954
                      #1073
                      Description
                      @enigbe
                      enigbe
                      opened on Jun 30, 2026
                      In #692 we introduced tiered storage to ldk-node, with options to configure a SQLite backup and ephemeral stores alongside the primary store. This raises two related gaps for nodes that enable backup after they already have existing state:
                      1. Backfilling an empty backup store: If a pre-existing node enables backup for the first time, the backup store starts empty while the primary store already holds data. We need to detect this case and use MigratableKVStore to backfill the backup from the primary before normal operation continues.
                      2. Re-silvering a stale backup: If backup is enabled, then disabled, then re-enabled later, the backup will have missed any writes that happened while it was off. We need a way to detect that the backup is stale relative to the primary and resilver it.
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, '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");
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                          Skip to content
                          Backfill empty and resilver stale backup #954
                          Open
                          #1073
                          Open
                          Backfill empty and resilver stale backup#954
                          #1073
                          Description
                          @enigbe
                          enigbe
                          opened on Jun 30, 2026
                          In #692 we introduced tiered storage to ldk-node, with options to configure a SQLite backup and ephemeral stores alongside the primary store. This raises two related gaps for nodes that enable backup after they already have existing state:
                          1. Backfilling an empty backup store: If a pre-existing node enables backup for the first time, the backup store starts empty while the primary store already holds data. We need to detect this case and use MigratableKVStore to backfill the backup from the primary before normal operation continues.
                          2. Re-silvering a stale backup: If backup is enabled, then disabled, then re-enabled later, the backup will have missed any writes that happened while it was off. We need a way to detect that the backup is stale relative to the primary and resilver it.
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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); }
})();
})();

                              Skip to content
                              Backfill empty and resilver stale backup #954
                              Open
                              #1073
                              Open
                              Backfill empty and resilver stale backup#954
                              #1073
                              Description
                              @enigbe
                              enigbe
                              opened on Jun 30, 2026
                              In #692 we introduced tiered storage to ldk-node, with options to configure a SQLite backup and ephemeral stores alongside the primary store. This raises two related gaps for nodes that enable backup after they already have existing state:
                              1. Backfilling an empty backup store: If a pre-existing node enables backup for the first time, the backup store starts empty while the primary store already holds data. We need to detect this case and use MigratableKVStore to backfill the backup from the primary before normal operation continues.
                              2. Re-silvering a stale backup: If backup is enabled, then disabled, then re-enabled later, the backup will have missed any writes that happened while it was off. We need a way to detect that the backup is stale relative to the primary and resilver it.
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