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https://issues.apache.org/jira/browse/ARTEMIS-839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15946468#comment-15946468
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Michael Andre Pearce (IG) commented on ARTEMIS-839:
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What's the status on this?
We have found we are maxing out at 50k msg/sec (durable) with ssd, we tried
raiding but the raid over head was actually detremental. As such we cannot
benefit by having multiple disks to get more performance. Where as if we could
have multiple journal dirs then we could obviously make use because we just
mount the disks direct and get total durable throughput higher.
This would be akin to some high performance databases do like aerospike etc.
> Support multiple backend data stores
> ------------------------------------
>
> Key: ARTEMIS-839
> URL: https://issues.apache.org/jira/browse/ARTEMIS-839
> Project: ActiveMQ Artemis
> Issue Type: New Feature
> Components: Broker
> Reporter: Matt Pavlovich
>
> ActiveMQ 5.x supports multi-kahahdb where destinations matching a certain
> naming convention are stored in separate data stores.
> Artemis should support this to achieve parity with ActiveMQ and other
> commercial brokers, such as Tibco EMS that support multiple back-end data
> stores.
> The 2 primary use cases:
> 1. Increase overall disk I/O by having multiple mount points to allow busy
> destinations to have separate disks
> 2. Separate *.*.*.DLQ destinations in order to avoid the
> journal-cannot-be-cleaned-up issue due to sporadic messages still present
> Note: It was discussed on IRC that #2 may be mitigated with Artemis'
> compaction thread. However, with very large data stores the performance would
> be better with a partitioned data store vs one really large one.
> Enhancement: It would be great if the full path could be specified.
> Currently, in ActiveMQ 5.x the path is automatically generated based on the
> destination name filter and complicates the ability to separate destinations
> due to funky character names on all OS's and filesystems.
> For example, support multiple journal entries ad add an attribute:
>
> * "destination-filter" or similar
> Examples:
>
> * < ... destination-filter="Order.>"
> * < .. destination-filter="Billing.>"
> * < .. destination-filter=">"
>
>
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