Myroslav Papirkovskyy created AMBARI-12224:
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Summary: Ambari should not configure
hbase.regionserver.global.memstore.upperLimit in HDP-2.3
Key: AMBARI-12224
URL: https://issues.apache.org/jira/browse/AMBARI-12224
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 2.1.0
Reporter: Myroslav Papirkovskyy
Assignee: Myroslav Papirkovskyy
Priority: Critical
Fix For: 2.1.0
HBase has deprecated {{hbase.regionserver.global.memstore.upperLimit}} and
{{hbase.regionserver.global.memstore.lowerLimit}} for HDP-2.3 in favor of
{{hbase.regionserver.global.memstore.size}} and
{{hbase.regionserver.global.memstore.size.lower.limit}}.
The slider called "% of RegionServer Allocated to Write Buffers" sets
{{hbase.regionserver.global.memstore.size}}, while
{{hbase.regionserver.global.memstore.upperLimit}} is in the advanced
configuration section. This leaves two bugs:
- In HDP-2.2, the slider has no affect since HBase basically ignores the
parameter.
- In HDP-2.3 the value set by the slider also has no affect since the
deprecated values set take precedence.
One solution is to get rid of {{hbase.regionserver.global.memstore.upperLimit}}
and {{hbase.regionserver.global.memstore.lowerLimit}} in advanced settings in
Ambari, and make the slider configuration to use
{{hbase.regionserver.global.memstore.upperLimit}} in HDP-2.2 and
{{hbase.regionserver.global.memstore.size}} in HDP-2.3. Rolling upgrade can
convert these settings.
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