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https://issues.apache.org/jira/browse/TIKA-863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13210242#comment-13210242
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Andrzej Bialecki commented on TIKA-863:
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This would work in my case, too. Though the same pattern would have to be
applied in other places where Tika creates heavy parsers (not to mention the
TikaConfig re-creation on each get ... quite costly), so I think a convenience
method should be provided to avoid repeating the same logic in various places.
> MailContentHandler should not create AutoDetectParser on each call
> ------------------------------------------------------------------
>
> Key: TIKA-863
> URL: https://issues.apache.org/jira/browse/TIKA-863
> Project: Tika
> Issue Type: Bug
> Components: parser
> Affects Versions: 1.1
> Reporter: Andrzej Bialecki
> Attachments: TIKA-863.patch
>
>
> MailContentHandler is called from RFC822Parser, and it creates
> AutoDetectParser on each call to parse(...). The process of creating
> AutoDetectParser involves reading TikaConfig (not cached), which in turn
> involves parsing XML config files. Apart from the fact that this process is
> wasteful and heavy, in addition in a highly concurrent setup it leads to
> multiple threads blocking on SAX parser creation.
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