Use heuristics to adjust various parameters based on load characteristics
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Key: HBASE-2706
URL: https://issues.apache.org/jira/browse/HBASE-2706
Project: HBase
Issue Type: New Feature
Components: master
Affects Versions: 0.20.4
Reporter: Ted Yu
Fix For: 0.20.6
Refer to 'ideas to improve throughput of the base writing' discussion on hbase
user mailing list.
We should use heuristics to adjust various parameters based on load
characteristics. Factors include, but not limited to, number of CPU (cores) on
each node, amount of physical memory on each node, Heap space allocated to
master/region servers.
HBase parameters shown below would be dynamic whose current values can be seen
on master.jsp / regionserver.jsp
For JVM parameters such as -Xmx, master.jsp should display recommended value to
user.
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Thanks. I will make this change:
<property>
<name>hbase.hregion.memstore.block.multiplier</name>
<value>8</value>
</property>
<property>
<name>hbase.regionserver.msginterval</name>
<value>10000</value>
</property>
<property>
<name>hbase.hstore.compactionThreshold</name>
<value>6</value>
</property>
<property>
<name>hbase.hstore.blockingStoreFiles</name>
<value>18</value>
</property>
and see how it goes.
Jimmy.
With the above change, the write goes faster if it works, but now we have
problem that the
insertion doesn't work at all, here is the result:
2010-06-09 22:29:04,330 WARN org.apache.hadoop.hdfs.DFSClient: DFS Read: java.io
.IOException: Could not find target position 0
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