[Koha-bugs] [Bug 16814] New: Indexer daemon stresses out server with many instances

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=16814

            Bug ID: 16814
           Summary: Indexer daemon stresses out server with many instances
 Change sponsored?: ---
           Product: Koha
           Version: 16.05
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P5 - low
         Component: Packaging
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: magnus at libriotech.no
        QA Contact: testopia at bugs.koha-community.org
                CC: mirko at abunchofthings.net

Bug 16190 enables the indexer daemon by default for package installations. 

I just upgraded my test server to 16.05.01. This server has 57 instances on it,
so it might be a bit of an outlier. But right after the upgrade started the
server maxed out on load, memory usage and swap. To the point where everyting
became unbearably slow. 

I tried setting INDEXER_TIMEOUT=30 in /etc/default/koha-common and rebooting,
but the same problem appeared almost at once. 

Setting USE_INDEXER_DAEMON="no" and rebooting made the server usable again. 

Not sure if this should be considered a problem, or if the problem is the high
number of instances on one server. The server is a "Linode 4096" and it has
been running this number of instances (which have very low usage) without any
problems for a long time prior to the upgrade.

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