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Todd Lipcon commented on HBASE-3484: ------------------------------------ Here's the link to the class in Apache Harmony: https://svn.apache.org/repos/asf/harmony/enhanced/java/branches/java6/classlib/modules/concurrent/src/main/java/java/util/concurrent/ConcurrentSkipListMap.java > Replace memstore's ConcurrentSkipListMap with our own implementation > -------------------------------------------------------------------- > > Key: HBASE-3484 > URL: https://issues.apache.org/jira/browse/HBASE-3484 > Project: HBase > Issue Type: Improvement > Affects Versions: 0.92.0 > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Fix For: 0.92.0 > > > By copy-pasting ConcurrentSkipListMap into HBase we can make two improvements > to it for our use case in MemStore: > - add an iterator.replace() method which should allow us to do upsert much > more cheaply > - implement a Set directly without having to do Map<KeyValue,KeyValue> to > save one reference per entry > It turns out CSLM is in public domain from its development as part of JSR > 166, so we should be OK with licenses. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.