Wordpress:6.7.2-php8.1-apache constantly restarts without writing to error.log. Where should I look?

Docker Engine General
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wordpress:6.7.2-php8.1-apache suddenly is constantly restarting without writing to error.log. Where should I start looking for reasons?

There were previous errors for connections to mySQL service, albeit not when my IP was using it, but this docker service is now running fine.

…Phil

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I have finally tracked down the cause of the problem, but am still baffled why it worked for over a week without this information in docker-compose.yml, and why it suddenly stopped working at 22/Mar/2025:16:16

  dns:
    - 81.130.111.248
    - 81.130.111.249

However, it is now working just fine, so I can get on with my life again! :smiley:

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This morning it suddenly stopped again, appearing to be due to database time-outs, so I added:
--transaction-isolation=READ-COMMITTED
to the mysql:8.0 service in an attempt to reduce lock-outs, but it was ultimately unsuccessful.

I am now getting the following messages in the wordpress container json.log:

{"log":"Considering dependency setenvif for ssl:\n","stream":"stdout","time":"2025-03-24T13:46:15.254448381Z"}
{"log":"Module setenvif already enabled\n","stream":"stdout","time":"2025-03-24T13:46:15.254514968Z"}
{"log":"Considering dependency mime for ssl:\n","stream":"stdout","time":"2025-03-24T13:46:15.254521808Z"}
{"log":"Module mime already enabled\n","stream":"stdout","time":"2025-03-24T13:46:15.25452714Z"}
{"log":"Considering dependency socache_shmcb for ssl:\n","stream":"stdout","time":"2025-03-24T13:46:15.254532427Z"}
{"log":"Module socache_shmcb already enabled\n","stream":"stdout","time":"2025-03-24T13:46:15.254537386Z"}
{"log":"Module ssl already enabled\n","stream":"stdout","time":"2025-03-24T13:46:15.254542434Z"}
{"log":"Site default-ssl already enabled\n","stream":"stdout","time":"2025-03-24T13:46:15.303616131Z"}
{"log":"Restarting Apache httpd web server: apache2 failed!\n","stream":"stdout","time":"2025-03-24T13:46:15.314684641Z"}

Does anyone have any suggestions about where to find the cause please?

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