Tim Allison created TIKA-2785:
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Summary: 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
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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