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From "Attila Nagy (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-4851) Ability to set percent and exact values to storeUsage, tempUsage and per destination policies
Date Wed, 06 Nov 2013 12:34:21 GMT
Attila Nagy created AMQ-4851:
--------------------------------

             Summary: Ability to set percent and exact values to storeUsage, tempUsage and
per destination policies
                 Key: AMQ-4851
                 URL: https://issues.apache.org/jira/browse/AMQ-4851
             Project: ActiveMQ
          Issue Type: New Feature
          Components: Broker, Message Store
    Affects Versions: 5.9.0
            Reporter: Attila Nagy
            Priority: Minor


It's possible to specify absolute values to storeUsage and tempUsage in bytes and usage percent
to storeUsageHighWaterMark in per destination policies.
I would like to set them the other way: set storeUsage to a relative (percent) value and limit
a queue to given bytes.
The rationale behind this: I use a compressed file system, which compresses messages more
or less, depending on their actual contents.
The ability to set storeUsage to a percent value (similar to its counterpart percentOfJvmHeap)
would help to match the reality closer.
Also, I would like to limit queues to an absolute value, like -eg- 1 GiB, not 3 percent of
70% of a compressible file system, which can mean anything.



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