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Performance issue after upgrade to 4.4.4


Sonya*
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Hi,

I have performance issues since upgrade to 4.4.4. E. g. adding posts takes up to 60 seconds till it saved. Approving new images as well.

  • I do not have any errors in email logs
  • No long queries are seen in database processes while adding a post
  • I use Elastic search
  • I use Redis as caching method and File system as Datastore
  • All tables (except two that are not really used) are in InnoDB
  • There are three servers: nginx, database and mail

This is a log for editing image in gallery:

"01/Jul/2019:21:41:51 +0300" client=XX.XXX.18.50 method=POST request="POST /gallery/image/4807-test/?do=edit HTTP/1.1" request_length=3962 status=301 bytes_sent=440 body_bytes_sent=0 referer=https://www.example.com/gallery/image/4807-test/?do=edit user_agent="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36" upstream_addr=127.0.0.1:9001 upstream_status=301 request_time=31.255 upstream_response_time=31.253 upstream_connect_time=0.000 upstream_header_time=31.253

Upstream_response_time=31.253 😞

Support says, my server is misconfigurated. It is weird as till yesterday I was on 4.4.3 and had no issues. I have not changed anything on the server, just upgraded to 4.4.4 and right after that got performance issues.

Can somebody give a tip of how I can make performance debugging to investigate what is going on.

Thank you.

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I have figured it out. It is due unarchiving posts on our project. I have disabled unarchiving some weeks before update. It seems that unarchiving slows down the system significantly on 4.4.4. Support has looked into the issue and submitted a patch. It looks better now, not perfect, but better. I hope it's completely solved in some weeks when unarchiving is done completely.

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