Alex Rudyy created QPID-8152:
--------------------------------
Summary: [Broker-J][BDB] Disable BDB JE file deletion watcher by
default in order to avoid running into "user inotify limit"
Key: QPID-8152
URL: https://issues.apache.org/jira/browse/QPID-8152
Project: Qpid
Issue Type: Improvement
Components: Broker-J
Affects Versions: qpid-java-broker-7.0.3
Reporter: Alex Rudyy
BDB JE use registers watcher service to detect unexpected deletion of the file.
In some purely configured environments the user inotify limit can be breached
on virtual host/virtual host node start-up. This situation ends-up in exception
like the one below:
{noformat}
Caused by: java.io.IOException: User limit of inotify instances reached or too
many open files
at
sun.nio.fs.LinuxWatchService.<init>(LinuxWatchService.java:64)
at
sun.nio.fs.LinuxFileSystem.newWatchService(LinuxFileSystem.java:47)
at
com.sleepycat.je.log.FileDeletionDetector.<init>(FileDeletionDetector.java:85)
... 29 common frames omitted
{nofromat}
Thought the root of the problem is a purely configured environment, it would be
safer to disable file deletion detection watcher by default.
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