Add a configuration to disable the slab cache by default
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Key: HBASE-5267
URL: https://issues.apache.org/jira/browse/HBASE-5267
Project: HBase
Issue Type: Bug
Affects Versions: 0.92.0
Reporter: Jean-Daniel Cryans
Assignee: Li Pi
Priority: Blocker
Fix For: 0.94.0, 0.92.1
>From what I commented at the tail of HBASE-4027:
{quote}
I changed the release note, the patch doesn't have a "hbase.offheapcachesize"
configuration and it's enabled as soon as you set -XX:MaxDirectMemorySize
(which is actually a big problem when you consider this:
http://hbase.apache.org/book.html#trouble.client.oome.directmemory.leak).
{quote}
We need to add hbase.offheapcachesize and set it to false by default.
Marking as a blocker for 0.92.1 and assigning to Li Pi at Todd's request.
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