Process hanging when starting n8n - Starting migration AddConstraintToExecutionMetadata1720101653148

AmbroiseUnly

Apparently, my n8n app is down with "n8n is starting up. Please wait" since yesterday and I'm noticing it just now.

The issue seems to be related to an update. I restarted the app and now it's stuck at Starting migration AddConstraintToExecutionMetadata1720101653148 for 15mn without anything happening in the logs and web app is still down.

Is that a known issue?

Jul 18 23:01:44 box:docker pullImage: {"status":"Extracting","progressDetail":{"current":1372,"total":1372},"progress":"[==================================================>] 1.372kB/1.372kB","id":"3f0342ae64ba"}
Jul 18 23:01:44 box:docker pullImage: {"status":"Extracting","progressDetail":{"current":1372,"total":1372},"progress":"[==================================================>] 1.372kB/1.372kB","id":"3f0342ae64ba"}
Jul 18 23:01:44 box:docker pullImage: {"status":"Pull complete","progressDetail":{},"id":"3f0342ae64ba"}
Jul 18 23:01:44 box:docker pullImage: {"status":"Digest: sha256:b7f6e86bb634b0fc68c2020ec7760e3de437db744ac474a70137b16590a496a4"}
Jul 18 23:01:44 box:docker pullImage: {"status":"Status: Downloaded newer image for cloudron/io.n8n.cloudronapp:20240718-050754-90025e1e0"}
Jul 18 23:01:44 box:docker downloaded image cloudron/io.n8n.cloudronapp:20240718-050754-90025e1e0 . error: false
Jul 18 23:01:44 box:tasks update 1511: {"percent":35,"message":"Cleaning up old install"}
Jul 18 23:01:44 box:apptask deleteContainer: deleting app containers (app, scheduler)
Jul 18 23:01:44 box:shell removeLogrotateConfig /usr/bin/sudo -S /home/yellowtent/box/src/scripts/configurelogrotate.sh remove 693caa42-bcf9-44c2-8f44-78f8676fe44c
Jul 18 23:02:18 box:services teardownAddons: Tearing down []
Jul 18 23:02:18 box:tasks update 1511: {"percent":45,"message":"Downloading icon"}
Jul 18 23:02:18 box:apptask downloadIcon: Downloading icon of io.n8n.cloudronapp@3.41.0
Jul 18 23:02:19 box:tasks update 1511: {"percent":60,"message":"Updating addons"}
Jul 18 23:02:19 box:services setupAddons: Setting up ["localstorage","postgresql","sendmail"]
Jul 18 23:02:19 box:services setupAddons: setting up addon localstorage with options {}
Jul 18 23:02:19 box:services setupLocalStorage
Jul 18 23:02:19 box:shell createVolume /usr/bin/sudo -S /home/yellowtent/box/src/scripts/mkdirvolume.sh /home/yellowtent/appsdata/693caa42-bcf9-44c2-8f44-78f8676fe44c/data
Jul 18 23:02:19 box:services setupAddons: setting up addon postgresql with options {}
Jul 18 23:02:19 box:services Setting up postgresql
Jul 18 23:02:19 box:services Setting postgresql addon config to [{"name":"CLOUDRON_POSTGRESQL_URL","value":"postgres://user693caa42bcf944c28f4478f8676fe44c:e86932a5f7a3594662665ca9471e8369daecdaf0047796c38a928558e2678cd16a39086932e427b94f104606d5d9534487d9d9020683d8e13bd3f2280a3385f5@postgresql/db693caa42bcf944c28f4478f8676fe44c"},{"name":"CLOUDRON_POSTGRESQL_USERNAME","value":"user693caa42bcf944c28f4478f8676fe44c"},{"name":"CLOUDRON_POSTGRESQL_PASSWORD","value":"e86932a5f7a3594662665ca9471e8369daecdaf0047796c38a928558e2678cd16a39086932e427b94f104606d5d9534487d9d9020683d8e13bd3f2280a3385f5"},{"name":"CLOUDRON_POSTGRESQL_HOST","value":"postgresql"},{"name":"CLOUDRON_POSTGRESQL_PORT","value":"5432"},{"name":"CLOUDRON_POSTGRESQL_DATABASE","value":"db693caa42bcf944c28f4478f8676fe44c"}]
Jul 18 23:02:19 box:services setupAddons: setting up addon sendmail with options {"supportsDisplayName":true}
Jul 18 23:02:19 box:services Setting up SendMail
Jul 18 23:02:19 box:services Setting sendmail addon config to [{"name":"CLOUDRON_MAIL_SMTP_SERVER","value":"mail"},{"name":"CLOUDRON_MAIL_SMTP_PORT","value":"2525"},{"name":"CLOUDRON_MAIL_SMTPS_PORT","value":"2465"},{"name":"CLOUDRON_MAIL_STARTTLS_PORT","value":"2587"},{"name":"CLOUDRON_MAIL_SMTP_USERNAME","value":"n8n@unly.org"},{"name":"CLOUDRON_MAIL_SMTP_PASSWORD","value":"a36d29838cf0ff6943b73e69475aa61a6bfda56caff91d43"},{"name":"CLOUDRON_MAIL_FROM","value":"n8n@unly.org"},{"name":"CLOUDRON_MAIL_DOMAIN","value":"unly.org"},{"name":"CLOUDRON_MAIL_FROM_DISPLAY_NAME","value":"my.n8n.unly.org"}]
Jul 18 23:02:19 box:tasks update 1511: {"percent":70,"message":"Creating container"}
Jul 18 23:02:19 box:apptask createContainer: creating container
Jul 18 23:02:19 box:shell getSwaps execArgs: swapon ["--noheadings","--raw","--bytes","--show=type,size,used,name"]
Jul 18 23:02:57 box:shell addLogrotateConfig /usr/bin/sudo -S /home/yellowtent/box/src/scripts/configurelogrotate.sh add 693caa42-bcf9-44c2-8f44-78f8676fe44c /tmp/693caa42-bcf9-44c2-8f44-78f8676fe44c.logrotate
Jul 18 23:02:57 box:apptask startApp: starting container
Jul 18 23:02:59 box:tasks update 1511: {"percent":90,"message":"Configuring reverse proxy"}
Jul 18 23:02:59 box:tasks update 1511: {"percent":100,"message":"Done"}
Jul 18 23:02:59 box:tasks setCompleted - 1511: {"result":null,"error":null}
Jul 18 23:02:59 box:tasks update 1511: {"percent":100,"result":null,"error":null}
Jul 18 23:02:59 box:taskworker Task took 177.89 seconds
Jul 19 09:10:35 Stopping n8n... "{ file: 'start.js', function: 'stopProcess' }"
Jul 19 09:10:35 2024-07-19T07:10:35.205Z | info | Received SIGTERM. Shutting down... "{ file: 'BaseCommand.js' }"
Jul 19 09:10:35 2024-07-19T07:10:35.211Z | debug | Shutting down component "Queue.pause()" "{ file: 'Shutdown.service.js', function: 'shutdownComponent' }"
Jul 19 09:10:35 2024-07-19T07:10:35.212Z | info |
Jul 19 09:10:35 2024-07-19T07:10:35.214Z | error | Error: There was an error shutting down n8n. "{ file: 'LoggerProxy.js', function: 'exports.error' }"
Jul 19 09:10:35 2024-07-19T07:10:35.214Z | error | TypeError: Cannot read properties of undefined (reading 'removeAllQueuedWorkflowActivations') "{ file: 'LoggerProxy.js', function: 'exports.error' }"
Jul 19 09:10:35 2024-07-19T07:10:35.216Z | debug | Shutting down component "License.shutdown()" "{ file: 'Shutdown.service.js', function: 'shutdownComponent' }"
Jul 19 09:10:35 2024-07-19T07:10:35.216Z | debug | Shutting down component "Push.onShutdown()" "{ file: 'Shutdown.service.js', function: 'shutdownComponent' }"
Jul 19 09:10:35 2024-07-19T07:10:35.217Z | debug | Shutting down component "ActiveWorkflowManager.removeAllTriggerAndPollerBasedWorkflows()" "{ file: 'Shutdown.service.js', function: 'shutdownComponent' }"
Jul 19 09:10:35 2024-07-19T07:10:35.217Z | debug | Shutting down component "ExecutionRecoveryService.shutdown()" "{ file: 'Shutdown.service.js', function: 'shutdownComponent' }"
Jul 19 09:10:35 2024-07-19T07:10:35.218Z | debug | Removing all trigger- and poller-based workflows "{\n file: 'ActiveWorkflowManager.js',\n function: 'removeAllTriggerAndPollerBasedWorkflows'\n}"
Jul 19 09:10:35 2024-07-19T07:10:35.219Z | debug | Shutting down component "AbstractServer.onShutdown()" "{ file: 'Shutdown.service.js', function: 'shutdownComponent' }"
Jul 19 09:10:35 2024-07-19T07:10:35.219Z | debug | Shutting down component "PruningService.shutdown()" "{ file: 'Shutdown.service.js', function: 'shutdownComponent' }"
Jul 19 09:10:35 2024-07-19T07:10:35.221Z | debug | Shutting down component "RedisClientService.disconnectClients()" "{ file: 'Shutdown.service.js', function: 'shutdownComponent' }"
Jul 19 09:10:35 2024-07-19T07:10:35.221Z | debug | [Pruning] Removing soft-deletion and hard-deletion timers "{ file: 'pruning.service.js', function: 'stopPruning' }"
Jul 19 09:10:35 box:taskworker Starting task 1518. Logs are at /home/yellowtent/platformdata/logs/693caa42-bcf9-44c2-8f44-78f8676fe44c/apptask.log
Jul 19 09:10:35 box:apptask run: startTask installationState: pending_restart runState: running
Jul 19 09:10:35 box:tasks update 1518: {"percent":10,"message":"Starting app services"}
Jul 19 09:10:35 box:tasks update 1518: {"percent":20,"message":"Restarting container"}
Jul 19 09:10:38 => Ensure directories
Jul 19 09:10:38 => Loading configuration
Jul 19 09:10:38 => Setting permissions
Jul 19 09:10:38 box:tasks update 1518: {"percent":80,"message":"Configuring reverse proxy"}
Jul 19 09:10:38 box:shell providerMatches execArgs: openssl ["x509","-noout","-subject","-issuer"]
Jul 19 09:10:38 box:reverseproxy providerMatches: subject=CN = *.unly.org domain=*.unly.org issuer=C = US, O = Let's Encrypt, CN = E5 wildcard=true/true prod=true/true issuerMismatch=false wildcardMismatch=false match=true
Jul 19 09:10:38 box:shell getCertificateDates execArgs: openssl ["x509","-startdate","-enddate","-subject","-noout"]
Jul 19 09:10:38 box:reverseproxy expiryDate: subject=CN = *.unly.org notBefore=Jun 13 02:10:26 2024 GMT notAfter=Sep 11 02:10:25 2024 GMT daysLeft=53.791505925925925
Jul 19 09:10:38 box:reverseproxy ensureCertificate: n8n.unly.org acme cert exists and is up to date
Jul 19 09:10:38 box:reverseproxy needsRenewal: false. force: false
Jul 19 09:10:38 box:shell isOscpEnabled execArgs: openssl ["x509","-in","/home/yellowtent/platformdata/nginx/cert/_.unly.org.cert","-noout","-ocsp_uri"]
Jul 19 09:10:38 box:reverseproxy writeAppLocationNginxConfig: writing config for "n8n.unly.org" to /home/yellowtent/platformdata/nginx/applications/693caa42-bcf9-44c2-8f44-78f8676fe44c/n8n.unly.org.conf with options {"sourceDir":"/home/yellowtent/box","vhost":"n8n.unly.org","hasIPv6":true,"ip":"172.18.19.176","port":5678,"endpoint":"app","redirectTo":null,"certFilePath":"/home/yellowtent/platformdata/nginx/cert/_.unly.org.cert","keyFilePath":"/home/yellowtent/platformdata/nginx/cert/_.unly.org.key","robotsTxtQuoted":"\"User-agent: *\\nDisallow: /\"","cspQuoted":null,"hideHeaders":[],"proxyAuth":{"enabled":false,"id":"693caa42-bcf9-44c2-8f44-78f8676fe44c","location":"/"},"upstreamUri":"","ocsp":true,"hstsPreload":false}
Jul 19 09:10:38 box:shell reload /usr/bin/sudo -S /home/yellowtent/box/src/scripts/restartservice.sh nginx
Jul 19 09:10:39 => Installing cloudinary@2.2.0 node-fetch@3.1.1 form-data@4.0.0
Jul 19 09:10:39 box:tasks update 1518: {"percent":100,"message":"Done"}
Jul 19 09:10:39 box:taskworker Task took 4.249 seconds
Jul 19 09:10:39 box:tasks setCompleted - 1518: {"result":null,"error":null}
Jul 19 09:10:39 box:tasks update 1518: {"percent":100,"result":null,"error":null}
Jul 19 09:10:40 => Healtheck error: Error: connect ECONNREFUSED 172.18.19.176:5678
Jul 19 09:10:50 => Healtheck error: Error: connect ECONNREFUSED 172.18.19.176:5678
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Jul 19 09:10:54 #############] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t [##################] | reify:@msgpackr-extract/msgpackr-extract-darwin-arm64: t <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - up to date, audited 1657 packages in 15s <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - 185 packages are looking for funding <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - run `npm fund` for details
Jul 19 09:10:54 <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - 19 vulnerabilities (9 moderate, 3 high, 7 critical) <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - To address issues that do not require attention, run: <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - npm audit fix <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - To address all issues (including breaking changes), run: <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - npm audit fix --force
Jul 19 09:10:54 <30>1 2024-07-19T07:10:54Z unly-n8n 693caa42-bcf9-44c2-8f44-78f8676fe44c 1050 693caa42-bcf9-44c2-8f44-78f8676fe44c - Run `npm audit` for details.
Jul 19 09:10:55 => Starting N8N
Jul 19 09:10:57 User settings loaded from: /app/data/user/.n8n/config
Jul 19 09:10:57 Loaded config overwrites from /app/data/configs/default.json
Jul 19 09:11:00 => Healtheck error: Error: connect ECONNREFUSED 172.18.19.176:5678
Jul 19 09:11:00 2024-07-19T07:11:00.894Z | info | Initializing n8n process "{ file: 'start.js', function: 'init' }"
Jul 19 09:11:01 2024-07-19T07:11:01.209Z | debug | Lazy Loading credentials and nodes from n8n-nodes-base "{\n credentials: 356,\n nodes: 455,\n file: 'LoggerProxy.js',\n function: 'exports.debug'\n}"
Jul 19 09:11:01 2024-07-19T07:11:01.231Z | debug | Lazy Loading credentials and nodes from @n8n/n8n-nodes-langchain "{\n credentials: 15,\n nodes: 75,\n file: 'LoggerProxy.js',\n function: 'exports.debug'\n}"
Jul 19 09:11:01 2024-07-19T07:11:01.514Z | debug | [Concurrency Control] Service disabled "{ file: 'concurrency-control.service.js', function: 'log' }"
Jul 19 09:11:01 2024-07-19T07:11:01.528Z | info | n8n ready on 0.0.0.0, port 5678 "{ file: 'AbstractServer.js', function: 'init' }"
Jul 19 09:11:01 2024-07-19T07:11:01.594Z | warn | Migrations in progress, please do NOT stop the process. "{ file: 'migrationHelpers.js', function: 'logMigrationStart' }"
Jul 19 09:11:01 2024-07-19T07:11:01.595Z | info | Starting migration AddConstraintToExecutionMetadata1720101653148 "{ file: 'migrationHelpers.js', function: 'logMigrationStart' }"

Here are the full logs:
https://gist.github.com/Vadorequest/7f879c614d8d6a4e40597bdad1c6b9bc

AmbroiseUnly

Restarting the app didn't work.

There was an awaiting Ubuntu update, I restarted the whole server and n8n booted properly this time.
So, it seems to be related to Ubuntu update, which got stuck the whole startup process.
I'm not sure what can be done to avoid this kind of situation.

joseph

Upstream thread - https://community.n8n.io/t/process-hanging-when-starting-n8n-starting-migration-1720101653148/50380/4

@AmbroiseUnly If the issue comes up again, we should investigate in more detail. Thanks for reporting

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Process hanging when starting n8n - Starting migration AddConstraintToExecutionMetadata1720101653148