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https://issues.apache.org/jira/browse/CASSANDRA-1041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Schubert Zhang updated CASSANDRA-1041:
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Attachment: CASSANDRA-1041-0.6.1.patch
My colleague White Liu and me modified the code of 0.6.1.
The attached "CASSANDRA-1041-0.6.1.patch" is a patch based on tag 0.6.1, and I
have test it.
If you want this small feature, please test and verify it. If it is necessary,
we will patch it to 0.6.2 or later.
This is a example of configuration in storage-conf.xml
<ColumnFamily Name="DATA"
CompareWith="LongType"
KeysCached="1000"
MinorCompactSkipInGB="10"
MajorCompactSkipInGB="100"/>
> Skip large size (Configurable) SSTable in minor or/and major compaction
> -----------------------------------------------------------------------
>
> Key: CASSANDRA-1041
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1041
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Schubert Zhang
> Priority: Minor
> Attachments: CASSANDRA-1041-0.6.1.patch
>
>
> When the SSTable files are large enough, such as 100GB, the compaction
> (include minor and major) cost is big (disk IO, CPU, memory), etc.
> In some applications, we accept not compcating all SSTables to the final very
> large ones.
> This feature provide two optional configurable attributes
> MinorCompactSkipInGB and MajorCompactSkipInGB for each ColumnFamily.
> The optional MinorCompactSkipInGB attribute specifies the maximum size of
> SSTables which will be compcated in minor-compaction. The SSTables larger
> than MinorCompactSkipInGB will be skipped. The optional MajorCompactSkipInGB
> attribute is same for major-compaction.
> The default of these attributes are 0, means do not skip, just as current
> 0.6.1.
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