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https://issues.apache.org/jira/browse/CHUKWA-700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Yang updated CHUKWA-700:
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Issue Type: New Feature (was: Bug)
> Revisit Chukwa metrics schema design for HBase
> ----------------------------------------------
>
> Key: CHUKWA-700
> URL: https://issues.apache.org/jira/browse/CHUKWA-700
> Project: Chukwa
> Issue Type: New Feature
> Components: Data Collection
> Affects Versions: 0.6.0
> Environment: MacOSX, Java
> Reporter: Eric Yang
>
> Current Chukwa HBase schema looks like this:
> {code}
> <timestamp>-<primaryKey> <columnFamily>:<cell>...
> {code}
> Monotonic increasing timestamp can not evenly distribute across region
> servers without special handle and care periodically.
> It is time to revise the schema, and proposed schema looks like this:
> {code}
> <hhddmmyyyy>-<primaryId> cf:<cell>...
> {code}
> Timestamp is stored with cell, row key helps to split data by hour, and a
> full hour of metrics is stored on the same row. PrimaryKey is replaced with
> hash id of the primary key. Metrics tables to aggregate metrics:
> chukwaMetrics -> chukwaMetricsMonthly -> chukwaMetricsYearly
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