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stack commented on HBASE-1212: ------------------------------ This is worse now that bulk upload is popular; all get low seqid so likelihood of clashing more likely. Made it so I had to do manual merge doing fixup of user cluster. > merge tool expects regions all have different sequence ids > ---------------------------------------------------------- > > Key: HBASE-1212 > URL: https://issues.apache.org/jira/browse/HBASE-1212 > Project: HBase > Issue Type: Bug > Reporter: stack > > Currently merging two regions, the merge tool will compare their sequence > ids. If same, it will decrement one. It needs to do this because on region > open, files are keyed by their sequenceid; if two the same, one will erase > the other. > Well, with the move to the aggregating hfile format, the sequenceid is > written when the file is created and its no longer written into an aside file > but as metadata on to the end of the file. Changing the sequenceid is no > longer an option. > This issue is about figuring a solution for the rare case where two store > files have same sequence id AND we want to merge the two regions. -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira