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Posted to dev@lucene.apache.org by "Chris A. Mattmann (JIRA)" <ji...@apache.org> on 2017/12/05 20:41:00 UTC
[jira] [Commented] (SOLR-11721) Isolate most of Tika and
dependencies into separate jvm
[ https://issues.apache.org/jira/browse/SOLR-11721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16279158#comment-16279158 ]
Chris A. Mattmann commented on SOLR-11721:
------------------------------------------
SOLR-7632.....
> Isolate most of Tika and dependencies into separate jvm
> -------------------------------------------------------
>
> Key: SOLR-11721
> URL: https://issues.apache.org/jira/browse/SOLR-11721
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Tim Allison
>
> Tika should not be run in the same jvm as Solr. Ever.
> Upgrading Tika and hoping to avoid jar hell, while getting all of the dependencies right manually is, um, error prone. See my recent failure: SOLR-11622, for which I apologize profusely.
> Running DIH against Tika's unit test documents has been eye-opening. It has revealed some other version conflict/dependency failures that should have been caught much earlier.
> The fix is non-trivial, but we should work towards it.
> I see two options:
> 1. TIKA-2514 -- Our current ForkParser offers a model for a minimal fork process + server option. The limitation currently is that all parsers and dependencies must be serializable, which can be a problem for users adding their own parsers with deps that might not be designed for serializability. The proposal there is to rework the ForkParser to use a TIKA_HOME directory for all dependencies.
> 2. SOLR-7632 -- use tika-server, but make it seamless and as easy (and secure!) to use as the current handlers.
> Other thoughts, recommendations?
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