[ https://issues.apache.org/jira/browse/ACCUMULO-3235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christopher Tubbs resolved ACCUMULO-3235. ----------------------------------------- Resolution: Duplicate Closing as duplicate of https://github.com/apache/accumulo/issues/1327 since we track issues on GitHub now. > No-chop merges > -------------- > > Key: ACCUMULO-3235 > URL: https://issues.apache.org/jira/browse/ACCUMULO-3235 > Project: Accumulo > Issue Type: Improvement > Components: tserver > Reporter: Christopher Tubbs > Assignee: Christopher Tubbs > Priority: Major > > Merges currently require a special "chop" major compaction, which can be > slow. The idea is simple: in the metadata entries for files, we track the > range in use for that file with a notation. > This additional metadata would be used to merge tablets without re-writing > data. Only this extra metadata would be updated (to a narrower range when > split, and possibly collapsed if merging adjacent ranges). If a range is > missing for a file, the tablet's range will be used instead. This simplifies > things for backwards compatibility, and means we don't need to include a > redundant range if the tablet isn't splitting/merging. -- This message was sent by Atlassian JIRA (v7.6.14#76016)