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https://issues.apache.org/jira/browse/CASSANDRA-2449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13099765#comment-13099765
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Hudson commented on CASSANDRA-2449:
-----------------------------------
Integrated in Cassandra #1087 (See
[https://builds.apache.org/job/Cassandra/1087/])
remove explicit per-CF memtable thresholds
patch by jbellis; reviewed by brandonwilliams for CASSANDRA-2449
jbellis :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1166520
Files :
* /cassandra/trunk/NEWS.txt
* /cassandra/trunk/conf/cassandra.yaml
* /cassandra/trunk/interface/cassandra.thrift
*
/cassandra/trunk/interface/thrift/gen-java/org/apache/cassandra/thrift/CfDef.java
*
/cassandra/trunk/interface/thrift/gen-java/org/apache/cassandra/thrift/Constants.java
* /cassandra/trunk/src/avro/internode.genavro
* /cassandra/trunk/src/java/org/apache/cassandra/config/CFMetaData.java
* /cassandra/trunk/src/java/org/apache/cassandra/config/DatabaseDescriptor.java
*
/cassandra/trunk/src/java/org/apache/cassandra/cql/CreateColumnFamilyStatement.java
* /cassandra/trunk/src/java/org/apache/cassandra/db/ColumnFamilyStore.java
* /cassandra/trunk/src/java/org/apache/cassandra/db/ColumnFamilyStoreMBean.java
* /cassandra/trunk/src/java/org/apache/cassandra/db/Memtable.java
* /cassandra/trunk/src/java/org/apache/cassandra/db/Table.java
* /cassandra/trunk/src/java/org/apache/cassandra/db/index/SecondaryIndex.java
*
/cassandra/trunk/src/java/org/apache/cassandra/db/index/SecondaryIndexManager.java
* /cassandra/trunk/src/java/org/apache/cassandra/db/index/keys/KeysIndex.java
* /cassandra/trunk/src/java/org/apache/cassandra/service/StorageService.java
* /cassandra/trunk/test/unit/org/apache/cassandra/db/DefsTest.java
> Deprecate or modify per-cf memtable sizes in favor of the global threshold
> --------------------------------------------------------------------------
>
> Key: CASSANDRA-2449
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2449
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Stu Hood
> Assignee: Jonathan Ellis
> Fix For: 1.0
>
> Attachments: 2449.txt
>
>
> The new memtable_total_space_in_mb setting is an excellent way to cap memory
> usage for memtables, and one could argue that it should replace the per-cf
> memtable sizes entirely. On the other hand, people may still want a knob to
> tune to flush certain cfs less frequently.
> I think a best of both worlds approach might be to deprecate the
> memtable_(throughput|operations) settings, and replace them with a preference
> value, which controls the relative memory usage of one CF versus another (all
> CFs at 1 would mean equal preference). For backwards compatibility, we could
> continue to read from the _throughput value and treat it as the preference
> value, while logging a warning.
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