Another SyncThing Database Migration Stuck Topic

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1

I know it says this may take a while. It’s been 4+hours running and I’d just like to know if it’s stuck or let it continue…..?

Synology NAS DS223j, Upgrade syncthing to v2.0.13

Previously syncing only two folders 1)32gb/27000files/7300folders 2) 169gb/27000files/761folders

Possibly pertinent background: Windows 11 PC just reinstalled W11 and synctrazor is not yet installed.

Opened syncthing on NAS and get the following log:

*** Database migration in progress ***

2026-02-27 10:34:24 INF syncthing v2.0.13 "Hafnium Hornet" (go1.25.4 linux-arm64) root@256d5b0d9ad7 2026-01-26 19:16:56 UTC [modernc-sqlite, stguiassets] (log.pkg=main)
2026-02-27 10:34:24 INF Archiving a copy of old config file format (path=/volume1/@appdata/syncthing/config.xml.v37 log.pkg=syncthing)
2026-02-27 10:34:24 INF Migrating old-style database to SQLite; this may take a while... (log.pkg=syncthing)
2026-02-27 10:34:29 INF Starting temporary GUI/API during migration (address=0.0.0.0:8384 log.pkg=main)
2026-02-27 10:34:35 INF Still migrating folder (folder=fdcqq-pld6z files=2000 blocks=12341 duration=10s blocksrate=1135.1470887485555 filesrate=183.96355056292933 log.pkg=syncthing)
2026-02-27 10:34:51 INF Still migrating folder (folder=fdcqq-pld6z files=5000 blocks=57069 duration=26s blocksrate=2121.9364899848556 filesrate=185.90973120125247 log.pkg=syncthing)
2026-02-27 10:35:04 INF Still migrating folder (folder=fdcqq-pld6z files=7000 blocks=99244 duration=40s blocksrate=2478.337539525183 filesrate=174.8051547365713 log.pkg=syncthing)
2026-02-27 10:35:17 INF Still migrating folder (folder=fdcqq-pld6z files=9000 blocks=146474 duration=53s blocksrate=2729.7370985684784 filesrate=167.72692687518813 log.pkg=syncthing)
2026-02-27 10:35:29 INF Still migrating folder (folder=fdcqq-pld6z files=11000 blocks=183501 duration=1m5s blocksrate=2792.642791163711 filesrate=167.40546756039925 log.pkg=syncthing)
2026-02-27 10:35:40 INF Still migrating folder (folder=fdcqq-pld6z files=12000 blocks=233234 duration=1m16s blocksrate=3041.0018093238696 filesrate=156.46098644231301 log.pkg=syncthing)
2026-02-27 10:35:54 INF Still migrating folder (folder=fdcqq-pld6z files=13000 blocks=295023 duration=1m29s blocksrate=3282.7270480665834 filesrate=144.65126998527433 log.pkg=syncthing)
2026-02-27 10:36:07 INF Still migrating folder (folder=fdcqq-pld6z files=14000 blocks=362000 duration=1m43s blocksrate=3495.7290431453166 filesrate=135.19394089512272 log.pkg=syncthing)
2026-02-27 10:36:23 INF Still migrating folder (folder=fdcqq-pld6z files=15000 blocks=420467 duration=1m59s blocksrate=3519.8996687156177 filesrate=125.57107937301681 log.pkg=syncthing)
2026-02-27 10:38:59 INF Still migrating folder (folder=fdcqq-pld6z files=16000 blocks=480377 duration=4m35s blocksrate=1745.1433125437554 filesrate=58.12579078661153 log.pkg=syncthing)
2026-02-27 10:39:30 INF Still migrating folder (folder=fdcqq-pld6z files=17000 blocks=536141 duration=5m6s blocksrate=1752.0318287139771 filesrate=55.55355976904883 log.pkg=syncthing)
2026-02-27 10:39:47 INF Still migrating folder (folder=fdcqq-pld6z files=18000 blocks=592246 duration=5m23s blocksrate=1832.406049864203 filesrate=55.6919065684794 log.pkg=syncthing)
2026-02-27 10:40:14 INF Still migrating folder (folder=fdcqq-pld6z files=19000 blocks=651102 duration=5m49s blocksrate=1861.0311602390739 filesrate=54.30730061425461 log.pkg=syncthing)
2

Do you mean that it got stuck at 2026-02-27 10:40:14 and it’s now been 4 hours with no further activity in the log at all? If yes, then I’d say it’s likely that Syncthing had either crashed or had been killed by the OS. Can you verify if the process is still running in background?

3

Yes. No further activity in the log.

On the synology NAS resource monitor, the syncthing process shows “sleeping”.

Should I just close the syncthing tab and restart syncthing from the synology control panel?

4

Honestly, I cannot help with Synology-related stuff, but you definitely should try restarting Syncthing at this point. Also, modernc-sqlite in the log indicates that your Syncthing binary wasn’t built with a recommended C compiler and its performance will be about 20% slower than our official builds.

1 Like
5

Let me guess. You’re using the Linuxserver Docker image.

6

Let me guess. You’re using the Linuxserver Docker image.

Negative, only what I have thru the Synology “package center”. Upgraded thru their links….

7

I restarted. Looks like everything completed. My folders are sync’d up again.

8

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