Gary Tully created AMQ-7302:
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Summary: JMX operation removeMessage(messageID) is not completing
and leading to high CPU usage
Key: AMQ-7302
URL: https://issues.apache.org/jira/browse/AMQ-7302
Project: ActiveMQ
Issue Type: Bug
Components: JMX
Affects Versions: 5.15.0
Reporter: Gary Tully
Assignee: Gary Tully
Fix For: 5.16.0
JMX queue move/remove/copyTo/retry ops behave badly when a queue is memory
constrained. The operations loop over pageIn() but don't check for cursor being
full and nothing further being paged into memory. In addition, they allow
concurrent operation which thwarts the linear search.
this can lead to excessive looping (high CPU), hanging and NPE depending on the
particular JMX op.
The loops need to short-circuit if pageIn blocks as is the norm when the cursor
is memory constrained.
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