XOA 6.8 causes backup / replication failure
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v6 dahsboard is now connected and working.
Both Proxies are connected and vms are visible from the remote pools...
Backup job still fails. same error.
How and why does it have to many conections? To where XOA? to the Proxy? to the Backup remote?
I did recently have two seperate issues each different at both remote sites recenlty but the inital backup error seemed similar to the OP. And all backups worked until recent updates.
Edit -
This is soemthing new....
THis is still an active tranfer when the job reported failed....
Reran backup again. It does appear to be doing the backup but it stil fails after creating snapshots or around that point. Once the job fails the backup is still happening and health checks happening.
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@acebmxer Hi am testing an hypothesis where removing an old library introduced a implicit compression and buffering between the proxy and the how.
Can I provide a branch to test, or can I deploy a fix through a support tunnel ?
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@florent Im having the same issue on 6.8.1 as well. XO and Proxies both updated.
The backup fails with "Fetch Failed" and the following appears in the log:
{ "data": { "mode": "delta", "reportWhen": "failure" }, "id": "1788359113454", "jobId": "61c9c971-a2ca-453a-9ed6-934e7cf241b2", "jobName": "TestLab-14Day-VMVault03", "message": "backup", "proxyId": "3b26e911-1502-4686-ada4-7e4e33ad6222", "scheduleId": "23f4b532-feb3-4c23-8fcd-1fd318e9ce63", "start": 1788359113454, "status": "failure", "end": 1788359173436, "result": { "message": "fetch failed", "name": "TypeError", "stack": "TypeError: fetch failed\n at node:internal/deps/undici/undici:14976:13\n at AsyncResource.runInAsyncScope (node:async_hooks:214:14)\n at cb (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/util.js:355:42)\n at tryCatcher (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/util.js:16:23)\n at Promise._settlePromiseFromHandler (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/promise.js:547:31)\n at Promise._settlePromise (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/promise.js:604:18)\n at Promise._settlePromise0 (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/promise.js:649:10)\n at Promise._settlePromises (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/promise.js:725:18)\n at _drainQueueStep (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/async.js:93:12)\n at _drainQueue (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/async.js:86:9)\n at Async._drainQueues (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/async.js:102:5)\n at Immediate.Async.drainQueues (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/async.js:15:14)\n at processImmediate (node:internal/timers:484:21)\n at process.callbackTrampoline (node:internal/async_hooks:130:17)" } }However the backup appears to carry on the in the background after i receive the email of failure / the backup shows as failed on the backups page in XO5.
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@florent Yes you may deploy a patch thought the support tunnel.
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@acebmxer can you give me the support tunnel number by chat ? patch is ready
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fix is here https://github.com/vatesfr/xen-orchestra/pull/10346 , it works on @flakpyro proxies
the root cause is a timing condition between compression buffering data silently and timeout watching any stall connection
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@florent I sent pm with support tunnel. Are you able to apply patch or will patch be pushed live soon?
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Backups ran after patch applied...
1 pool had zero issues on backup 100% complete...
Other pool while it complete did have some errors...Started a second backup on same pool and giving same results.
{ "data": { "mode": "delta", "reportWhen": "always", "backupReportTpl": "compactMjml", "hideSuccessfulItems": true }, "id": "1788428437610", "jobId": "c0e31730-7d45-4f3a-8733-8cea444b127d", "jobName": "Salem - Delta Backups", "message": "backup", "proxyId": "7840039e-a3cb-41ed-acee-3690f89a1426", "scheduleId": "ce3c801c-4384-4726-bda1-f6bae788e2f4", "start": 1788428437610, "status": "success", "tasks": [ { "id": "0mtlc477z-gdvpj68kva", "start": 1788428438927, "status": "success", "tasks": [ { "id": "0mtlc478f-guqsurb38qa", "start": 1788428438943, "status": "success", "end": 1788428440120, "result": { "merge": false, "size": 0 }, "message": "clean-vm" }, { "id": "0mtlc48cx-c1y79k93vl", "start": 1788428440401, "status": "success", "end": 1788428442225, "result": "67677eec-494b-6ab6-0447-ac4dba8932a1", "message": "snapshot" }, { "id": "0mtlc49rm-ou0nslm2c7l", "start": 1788428442227, "status": "success", "tasks": [ { "id": "0mtlc724s-62ae1bzdupa", "start": 1788428572300, "status": "success", "end": 1788428932605, "result": { "size": 20385362944 }, "message": "transfer", "data": { "progress": 99 } }, { "id": "0mtlceupa-f476k7iq2u4", "start": 1788428935918, "status": "success", "tasks": [ { "id": "0mtlceutz-yztgqk0sv0c", "start": 1788428936087, "status": "success", "end": 1788429285986, "result": { "size": 20380123136, "id": "5fb5f6f1-709b-b149-4aa6-31514ef2c7f2" }, "message": "transfer" }, { "id": "0mtlcmctg-8z00dmmisds", "start": 1788429285988, "status": "success", "end": 1788429291289, "message": "vmstart" } ], "end": 1788429296722, "message": "health check" }, { "id": "0mtlcml5b-ywe7qa02f7q", "start": 1788429296783, "status": "success", "end": 1788429300723, "result": { "merge": false, "size": 0 }, "message": "clean-vm" } ], "end": 1788429300727, "message": "export", "data": { "id": "19270323-baaa-4a7b-bf1f-e152ae44f263", "isFull": false, "type": "remote" } } ], "warnings": [ { "message": "can't compute delta OpaqueRef:afcf0af9-64c9-845d-207c-789c9c5de78f from OpaqueRef:13ce290f-2194-280e-72c5-9e16271505df, fall back to a full" }, { "message": "can't connect through NBD, fall back to stream export" }, { "message": "Backup fell back to a full" } ], "infos": [ { "message": "will delete snapshot data" }, { "data": { "vdiRef": "OpaqueRef:afcf0af9-64c9-845d-207c-789c9c5de78f" }, "message": "Snapshot data has been deleted" } ], "end": 1788429300728, "message": "backup VM", "data": { "id": "0618e9fe-854e-7f01-1f22-6fb1667806d4", "type": "VM", "name_label": "Salem XO-CE", "progress": 0 } }, { "id": "0mtlc4783-s6m3pnf32pl", "start": 1788428438931, "status": "success", "tasks": [ { "id": "0mtlc478g-epd65nptnrn", "start": 1788428438944, "status": "success", "end": 1788428439927, "result": { "merge": false, "size": 0 }, "message": "clean-vm" }, { "id": "0mtlc486t-mq755lvlxi", "start": 1788428440181, "status": "success", "end": 1788428443614, "result": "d52e8853-1102-8bcd-b588-adbe5b411a6b", "message": "snapshot" }, { "id": "0mtlc4au7-q4va6ntph6c", "start": 1788428443615, "status": "success", "tasks": [ { "id": "0mtlc9pax-xyje1fo25lf", "start": 1788428695641, "status": "success", "end": 1788429704445, "result": { "size": 44032329216 }, "message": "transfer", "data": { "progress": 100 } }, { "id": "0mtlcvdy1-pxmgi1rx7tk", "start": 1788429707353, "status": "success", "tasks": [ { "id": "0mtlcvdzc-uodtj65grrn", "start": 1788429707400, "status": "success", "end": 1788430481457, "result": { "size": 44021317632, "id": "ed4d4ce7-2685-a35a-b1e4-c54a1385364e" }, "message": "transfer" }, { "id": "0mtldbz96-dsndwbb93hv", "start": 1788430481466, "status": "success", "end": 1788430486658, "message": "vmstart" } ], "end": 1788430492516, "message": "health check" }, { "id": "0mtldc7vt-oopf5wcg74e", "start": 1788430492649, "status": "success", "end": 1788430501065, "result": { "merge": false, "size": 0 }, "message": "clean-vm" } ], "end": 1788430501070, "message": "export", "data": { "id": "19270323-baaa-4a7b-bf1f-e152ae44f263", "isFull": false, "type": "remote" } } ], "warnings": [ { "message": "can't compute delta OpaqueRef:82b55a23-b13e-df37-c9f7-11373a42c40b from OpaqueRef:9824e8f1-0199-885c-e69a-d9275cd62d2a, fall back to a full" }, { "message": "can't connect through NBD, fall back to stream export" }, { "message": "Backup fell back to a full" } ], "infos": [ { "message": "will delete snapshot data" }, { "data": { "vdiRef": "OpaqueRef:82b55a23-b13e-df37-c9f7-11373a42c40b" }, "message": "Snapshot data has been deleted" } ], "end": 1788430501071, "message": "backup VM", "data": { "id": "64476a1a-20f5-32a4-6352-47916b2162d8", "type": "VM", "name_label": "Salem UnifiOS", "progress": 0 } }, { "id": "0mtlcmo92-ezud8mmu26", "start": 1788429300806, "status": "success", "tasks": [ { "id": "0mtlcmoaf-ah3ohsdoy7r", "start": 1788429300855, "status": "success", "end": 1788429304315, "result": { "merge": false, "size": 0 }, "message": "clean-vm" }, { "id": "0mtlcmrdk-xm266uwj1ni", "start": 1788429304856, "status": "success", "end": 1788429307794, "result": "dd0d0918-efdd-1a1d-ce94-85afbf0fd25c", "message": "snapshot" }, { "id": "0mtlcmtn7-clidkdhy2ht", "start": 1788429307795, "status": "success", "tasks": [ { "id": "0mtlcs7g8-3k59s9tshcf", "start": 1788429558968, "status": "success", "end": 1788430829213, "result": { "size": 43868711424 }, "message": "transfer", "data": { "progress": 100 } }, { "id": "0mtldjhbz-rfnh54dr3y", "start": 1788430831487, "status": "success", "tasks": [ { "id": "0mtldjhd9-g6rihy05ec7", "start": 1788430831533, "status": "success", "end": 1788431285549, "result": { "size": 43857739776, "id": "e3215b6b-9b5a-0d49-3392-491cc39c19e4" }, "message": "transfer" }, { "id": "0mtldt7ox-r81abwrax4", "start": 1788431285553, "status": "success", "end": 1788431290565, "message": "vmstart" } ], "end": 1788431296314, "message": "health check" }, { "id": "0mtldtg0h-8kvnbox5dg3", "start": 1788431296337, "status": "success", "end": 1788431297610, "result": { "merge": false, "size": 0 }, "message": "clean-vm" } ], "end": 1788431297611, "message": "export", "data": { "id": "19270323-baaa-4a7b-bf1f-e152ae44f263", "isFull": false, "type": "remote" } } ], "warnings": [ { "message": "can't compute delta OpaqueRef:4b3d9930-d795-03f8-c887-f8b7d2a95524 from OpaqueRef:894ead1a-dae6-f156-d8c7-c7f5ba2200ef, fall back to a full" }, { "message": "can't connect through NBD, fall back to stream export" }, { "message": "Backup fell back to a full" } ], "infos": [ { "message": "will delete snapshot data" }, { "data": { "vdiRef": "OpaqueRef:4b3d9930-d795-03f8-c887-f8b7d2a95524" }, "message": "Snapshot data has been deleted" } ], "end": 1788431297611, "message": "backup VM", "data": { "id": "ddf296c8-20a0-6aa9-0d74-ebc029d0d1b3", "type": "VM", "name_label": "Salem UnifiOS", "progress": 0 } } ], "end": 1788431297621, "infos": [ { "data": { "vms": [ "0618e9fe-854e-7f01-1f22-6fb1667806d4", "64476a1a-20f5-32a4-6352-47916b2162d8", "ddf296c8-20a0-6aa9-0d74-ebc029d0d1b3" ] }, "message": "vms" } ] } -
To sum up... It appears the patch has worked for me but has shed some light on miss configuration with the network design at this remote location, that I will need to take a real closer look at.
@florent thank you very much for your continue assistance with my issues.
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@acebmxer we are far more explicit on the real usage of NBD, paing the way to mark a failed NBD connexion as an error in a few month
also working on a diagnostic tool to be more efficient on the checks
thank you all for your time
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