Josh Elser created HBASE-17974:
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Summary: Concurrency concerns in transition of space quota state
with large clusters
Key: HBASE-17974
URL: https://issues.apache.org/jira/browse/HBASE-17974
Project: HBase
Issue Type: Improvement
Reporter: Josh Elser
Priority: Minor
spin-out from
https://issues.apache.org/jira/browse/HBASE-16961?focusedCommentId=15985358&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15985358
As the master processes the current space usages for all tables with space
quotas, it does so serially. It also synchronizes on the map which stores each
table's state. This prevents the master from easily changing to process table
quota violation state transition.
When we get to clusters with large number of tables, each with a space quota,
we could run into a situation where a non-zero source of latency is iterating
over each table in serial.
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