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https://issues.apache.org/jira/browse/ZOOKEEPER-1927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14007424#comment-14007424
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Michi Mutsuzaki commented on ZOOKEEPER-1927:
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Thank you for trying these out Ed. I don't have any other suggestions, let me
know if you find a pattern that works with tab characters. If not, we can still
replace [:space:] with \s. At least that will fix the issue you are seeing,
even if it doesn't work with leading tab characters. Would you like to go ahead
and upload a patch?
> zkServer.sh fails to read dataDir (and others) from zoo.cfg on Solaris 10
> (grep issue, manifests as FAILED TO WRITE PID).
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-1927
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1927
> Project: ZooKeeper
> Issue Type: Bug
> Components: scripts
> Affects Versions: 3.4.6
> Environment: Solaris 5.10
> Reporter: Ed Schmed
>
> Fails to write PID file with a permissions error, because the startup script
> fails to read the dataDir variable from zoo.cfg, and then tries to use the
> drive root ( / ) as the data dir.
> Tracked the problem down to line 84 of zkServer.sh:
> ZOO_DATADIR="$(grep "^[[:space:]]*dataDir" "$ZOOCFG" | sed -e 's/.*=//')"
> If i run just that line and point it right at the config file, ZOO_DATADIR is
> empty.
> If I remove [[:space:]]* from the grep:
> ZOO_DATADIR="$(grep "^dataDir" "$ZOOCFG" | sed -e 's/.*=//')"
> Then it works fine. (If I also make the same change on line 164 and 169)
> My regex skills are pretty bad, so I'm afraid to comment on why [[space]]*
> needs to be in there?
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