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Docker Postgres “PANIC: could not locate a valid checkpoint record”

It seemed that my Postgres database was not properly shut down when rebooting and when I tried to use docker-compose to start it again, the following message was shown in `docker logs`:

PANIC:  could not locate a valid checkpoint record
LOG:  startup process (PID 23) was terminated by signal 6: Aborted
LOG:  aborting startup due to startup process failure
LOG:  database system is shut down
LOG:  database system was interrupted; last known up at 2017-09-14 08:22:04 UTC
LOG:  unexpected pageaddr B/68B26000 in log segment 000000010000000B0000006D, offset 11689984
LOG:  invalid primary checkpoint record
LOG:  unexpected pageaddr B/688F2000 in log segment 000000010000000B0000006D, offset 9379840
LOG:  invalid secondary checkpoint record

To fix this, first shut down this container (docker-compose down), then start the container in interactive mode:$ docker run -it -v /Users/ postgres:9.6 /bin/bash
root@c4d2fb7edcea:/# gosu postgres pg_resetxlog -f /var/lib/postgres/data
Transaction log reset
root@c4d2fb7edcea:/# exit

After the transaction log is reset, everything should be fine. Now you can start your containers again (docker-compose up -d).

Published in Miscellaneous Tech Blog


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