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Karthik Ranganathan commented on HBASE-7163: -------------------------------------------- @Ted - yes that's the part, fix has another component to it though. Also, changed this task to add one more perf improvement. > Low-hanging perf improvements in HBase client > ---------------------------------------------- > > Key: HBASE-7163 > URL: https://issues.apache.org/jira/browse/HBASE-7163 > Project: HBase > Issue Type: Sub-task > Reporter: Karthik Ranganathan > Assignee: Karthik Ranganathan > > 1. Change cachedRegionsLocations in HConnectionManager from > SoftValueSortedMap to ConcurrentSkipListMap: > This change saves 15% CPU on the client side per profiling. In using the > ConcurrentSkipListMap, we can do: > tableLocations.floorEntry(row).getValue() > instead of doing: > SortedMap<byte[], HRegionLocation> matchingRegions = > tableLocations.floorEntry(row).getValue(); > if (!matchingRegions.isEmpty()) { > HRegionLocation possibleRegion = > matchingRegions.get(matchingRegions.lastKey()); > } > 2. NetUtils.getDefaultSocketFactory is very inefficient, use -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira