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https://issues.apache.org/jira/browse/HBASE-20894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16571864#comment-16571864
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Sean Busbey commented on HBASE-20894:
-------------------------------------
please file a follow-on jira to get the ref guide updated to include a call out
about this for upgrading from 2.y to 3.y
> Move BucketCache from java serialization to protobuf
> ----------------------------------------------------
>
> Key: HBASE-20894
> URL: https://issues.apache.org/jira/browse/HBASE-20894
> Project: HBase
> Issue Type: Task
> Components: BucketCache
> Affects Versions: 2.0.0
> Reporter: Mike Drob
> Assignee: Mike Drob
> Priority: Major
> Fix For: 3.0.0
>
> Attachments:
> 0001-Write-the-CacheableDeserializerIdManager-index-into-.patch,
> HBASE-20894.WIP-2.patch, HBASE-20894.WIP.patch, HBASE-20894.master.001.patch,
> HBASE-20894.master.002.patch, HBASE-20894.master.003.patch,
> HBASE-20894.master.004.patch, HBASE-20894.master.005.patch,
> HBASE-20894.master.006.patch
>
>
> We should use a better serialization format instead of Java Serialization for
> the BucketCache entry persistence.
> Suggested by Chris McCown, who does not appear to have a JIRA account.
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