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https://issues.apache.org/jira/browse/TIKA-2785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16692230#comment-16692230
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Hudson commented on TIKA-2785:
------------------------------
UNSTABLE: Integrated in Jenkins build tika-2.x-windows #351 (See
[https://builds.apache.org/job/tika-2.x-windows/351/])
TIKA-2785 -- switch communication from child to parent to a shared (tallison:
rev a88b8ab64c75869c08701aad9607fc56020c2e1b)
* (edit)
tika-server/src/main/java/org/apache/tika/server/TikaServerWatchDog.java
* (edit) tika-server/src/main/java/org/apache/tika/server/ServerTimeouts.java
* (edit) tika-server/src/test/resources/logging/log4j_child.xml
* (edit) tika-server/src/main/java/org/apache/tika/server/ServerStatus.java
* (edit)
tika-server/src/main/java/org/apache/tika/server/ServerStatusWatcher.java
* (edit) CHANGES.txt
* (add) tika-server/src/test/resources/mock/heavy_hang_100.xml
* (add) tika-core/src/main/java/org/apache/tika/io/MappedBufferCleaner.java
* (edit) tika-server/src/main/java/org/apache/tika/server/TikaServerCli.java
* (edit)
tika-server/src/test/java/org/apache/tika/server/TikaServerIntegrationTest.java
* (delete) tika-server/src/test/resources/mock/heavy_hand_100.xml
> Switch parent/child IPC to mmap file from stdout/stderr in tika-server
> ----------------------------------------------------------------------
>
> Key: TIKA-2785
> URL: https://issues.apache.org/jira/browse/TIKA-2785
> Project: Tika
> Issue Type: Task
> Reporter: Tim Allison
> Assignee: Tim Allison
> Priority: Major
> Fix For: 2.0.0, 1.20
>
>
> When I added {{-spawnChild}} to tika-server, I followed the pattern in
> ForkParser of redirecting stdout/stderr for the parent to listen to output
> from the child process. This relies on the parsers not grabbing a pointer to
> stdout/stderr _before_ we redirect it. However, it is possible for parsers
> to grab stdout/stderr during static initialization, as happens with log4j
> configured to write to stdout/stderr.
> This means that the communication channel from child to parent is unreliable.
> Let's switch child to parent communication in {{-spawnChild}} to a shared
> mmap'd file.
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