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https://issues.apache.org/jira/browse/TIKA-2776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16704474#comment-16704474
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Mario Bisonti commented on TIKA-2776:
-------------------------------------
Hallo Tim.
I obtained a restart of child:
2018-11-30 01:21:01 INFO TikaServerWatchDog:104 - About to restart the child
process
2018-11-30 01:21:02 INFO TikaServerWatchDog:106 - Successfully restarted child
process -- 11 restarts so far)
2018-11-30 05:39:09 WARN TikaServerWatchDog:253 - Received status from child:
HIT_MAX
2018-11-30 05:39:10 INFO TikaServerWatchDog:104 - About to restart the child
process
2018-11-30 05:39:12 INFO TikaServerWatchDog:106 - Successfully restarted child
process -- 13 restarts so far)
2018-11-30 08:38:03 WARN TikaServerWatchDog:253 - Received status from child:
HIT_MAX
2018-11-30 08:38:03 INFO TikaServerWatchDog:104 - About to restart the child
process
2018-11-30 08:38:04 INFO TikaServerWatchDog:106 - Successfully restarted child
process -- 15 restarts so far)
Is this related about the parameter :
_{{-maxFiles}}: restart the child process after it has processed {{maxFiles}}.
If there is a slow building memory leak, this restart of the JVM should help._
I didn't set the parameter.
Which is default value of maxFiles ?
Thanks
Mario
> Tika server child restart
> -------------------------
>
> Key: TIKA-2776
> URL: https://issues.apache.org/jira/browse/TIKA-2776
> Project: Tika
> Issue Type: Bug
> Reporter: Mario Bisonti
> Assignee: Tim Allison
> Priority: Blocker
> Fix For: 2.0.0, 1.20
>
> Attachments: Log.zip, MCF_JOB.png, log4j.xml, log4j_child.xml,
> log4j_child.xml, man_tika.zip, tikalogchild.log
>
>
> Hallo.
> I use tika server standalone started with the option:
> java -jar /opt/tika/tika-server-1.19.1.jar -spawnChild
> I use ManifoldCF and Solr to index file using tika server.
> It happens that indexing is continuously crashed because I obtain many:
> Tika down, retrying: Connection reset
> etc.
> I suspect that, when a process is restarted, the client crash as mentioned
> here:
> _If the child process is in the process of shutting down, and it gets a new
> request it will return 503 -- Service Unavailable. If the server times out on
> a file, the client will receive an IOException from the closed socket. Note
> that all other files that are being processed will end with an IOException
> from a closed socket when the child process shuts down; e.g. if you send
> three files to tika-server concurrently, and one of them causes a
> catastrophic problem requiring the child to shut down, you won't be able to
> tell which file caused the problems. In the future, we may implement a
> gentler shutdown than we currently have._
> as reported here https://wiki.apache.org/tika/TikaJAXRS
> How could I workaround it ?
> Thanks a lot
> Mario
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