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https://issues.apache.org/jira/browse/HBASE-21874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16786398#comment-16786398
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Hudson commented on HBASE-21874:
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Results for branch branch-2.1
[build #928 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.1/928/]:
(x) *{color:red}-1 overall{color}*
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details (if available):
(/) {color:green}+1 general checks{color}
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report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.1/928//General_Nightly_Build_Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
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(x) {color:red}-1 source release artifact{color}
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> Bucket cache on Persistent memory
> ---------------------------------
>
> Key: HBASE-21874
> URL: https://issues.apache.org/jira/browse/HBASE-21874
> Project: HBase
> Issue Type: New Feature
> Components: BucketCache
> Affects Versions: 3.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Major
> Fix For: 3.0.0, 2.x
>
> Attachments: HBASE-21874.patch, HBASE-21874.patch,
> HBASE-21874_V2.patch, HBASE-21874_V4.patch, HBASE-21874_V5.patch,
> HBASE-21874_V6.patch, Pmem_BC.png
>
>
> Non volatile persistent memory devices are byte addressable like DRAM (for
> eg. Intel DCPMM). Bucket cache implementation can take advantage of this new
> memory type and can make use of the existing offheap data structures to serve
> data directly from this memory area without having to bring the data to
> onheap.
> The patch is a new IOEngine implementation that works with the persistent
> memory.
> Note : Here we don't make use of the persistence nature of the device and
> just make use of the big memory it provides.
> Performance numbers to follow.
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