[JBoss JIRA] (ISPN-3244) TopologyAwareSyncConsistentHashFactory should limit the number of segments per node
by Dan Berindei (JIRA)
[ https://issues.jboss.org/browse/ISPN-3244?page=com.atlassian.jira.plugin.... ]
Dan Berindei updated ISPN-3244:
-------------------------------
Fix Version/s: 7.0.0.Alpha1
(was: 6.0.1.Final)
> TopologyAwareSyncConsistentHashFactory should limit the number of segments per node
> -----------------------------------------------------------------------------------
>
> Key: ISPN-3244
> URL: https://issues.jboss.org/browse/ISPN-3244
> Project: Infinispan
> Issue Type: Bug
> Components: State transfer
> Affects Versions: 5.2.6.Final, 5.3.0.CR2
> Reporter: Dan Berindei
> Assignee: Dan Berindei
> Fix For: 7.0.0.Alpha1
>
>
> Let's say we have a cluster with 5 nodes: A(r1), B(r2), C(r2), D(r3), E(r3)
> TopologyAwareConsistentSyncHashFactory will spread the segments equally on each rack, meaning A will own 2x segments compared to the other nodes.
> TopologyAwareConsistentHashFactory limits the maximum number per node, so that A owns just as many segments as the other nodes. With a slight limitation: the number of racks must be greater than numOwners, otherwise each rack must hold (at least) one copy of all the data.
> TopologyAwareConsistentSyncHashFactory is a little random, so we can't distribute the data perfectly, but we can limit the number of segments on each node to something like 1.5x the average number of segments.
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12 years, 3 months
[JBoss JIRA] (ISPN-3229) L1 cache entries should not be passivated
by Dan Berindei (JIRA)
[ https://issues.jboss.org/browse/ISPN-3229?page=com.atlassian.jira.plugin.... ]
Dan Berindei updated ISPN-3229:
-------------------------------
Fix Version/s: 7.0.0.Alpha1
(was: 6.0.1.Final)
> L1 cache entries should not be passivated
> -----------------------------------------
>
> Key: ISPN-3229
> URL: https://issues.jboss.org/browse/ISPN-3229
> Project: Infinispan
> Issue Type: Bug
> Affects Versions: 5.2.6.Final
> Reporter: William Burns
> Assignee: William Burns
> Fix For: 7.0.0.Alpha1
>
> Attachments: DistSyncL1PassivationFuncTest.java
>
>
> L1 entries are stored in the same data container as the real entries. These can be evicted which is fine, however we don't want them to be passivated as this could be costly to write/read from the cache store. We should either prevent L1 cache entries from being passivated or have an option to allow for it.
> Currently L1 entries are not differentiated from other entries except through the fact that they are mortal, which is used for other operations as well, which means they would need a placeholder of some kind to tell the container this is a L1 entry.
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12 years, 3 months
[JBoss JIRA] (ISPN-3529) Add support for the segment-based CH in the HotRod protocol
by Dan Berindei (JIRA)
[ https://issues.jboss.org/browse/ISPN-3529?page=com.atlassian.jira.plugin.... ]
Dan Berindei updated ISPN-3529:
-------------------------------
Fix Version/s: 7.0.0.Alpha1
(was: 6.0.1.Final)
> Add support for the segment-based CH in the HotRod protocol
> -----------------------------------------------------------
>
> Key: ISPN-3529
> URL: https://issues.jboss.org/browse/ISPN-3529
> Project: Infinispan
> Issue Type: Feature Request
> Components: Remote protocols
> Affects Versions: 6.0.0.Alpha4
> Reporter: Dan Berindei
> Assignee: Dan Berindei
> Labels: hotrod, hotrod-java-client
> Fix For: 7.0.0.Alpha1
>
>
> The server CH changed in version 5.2 from virtual-nodes-based to segment-based, but the client CH stayed the same. The server is able to translate the server CH into a client CH, but the translation is imperfect:
> 1. Sometimes the client CH computes a different primary owner than the server CH.
> 2. The client CH gets slower as the number of segments increases, the server CH performance stays the same.
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12 years, 3 months
[JBoss JIRA] (ISPN-3402) Add JDBC Cache Store config to RHQ plugin
by Dan Berindei (JIRA)
[ https://issues.jboss.org/browse/ISPN-3402?page=com.atlassian.jira.plugin.... ]
Dan Berindei updated ISPN-3402:
-------------------------------
Fix Version/s: 7.0.0.Alpha1
(was: 6.0.1.Final)
> Add JDBC Cache Store config to RHQ plugin
> -----------------------------------------
>
> Key: ISPN-3402
> URL: https://issues.jboss.org/browse/ISPN-3402
> Project: Infinispan
> Issue Type: Enhancement
> Components: Loaders and Stores, Server
> Reporter: William Burns
> Assignee: William Burns
> Fix For: 7.0.0.Alpha1
>
>
> ISPN-3350 was added to enhance some of the RHQ endpoints to allow for better runtime configuration support. However ISPN-3290 is also concurrently changing cache stores. Some changes for ISPN-3290 were mentioned to be possibly changing how the JDBC cache stores are configured and as such this has been excluded from ISPN-3350 to not implement it twice.
> This is just to add in the support JDBC cache stores as they are missing.
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12 years, 3 months