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Hudson commented on HBASE-16554: -------------------------------- SUCCESS: Integrated in Jenkins build HBase-Trunk_matrix #1636 (See [https://builds.apache.org/job/HBase-Trunk_matrix/1636/]) HBASE-16554 Rebuild WAL tracker if trailer is corrupted. (appy: rev b2eac0da33c4161aa8188213171afb03b72048a4) * (edit) hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/wal/WALProcedureStore.java * (edit) hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.java * (edit) hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/wal/ProcedureWALFormat.java * (edit) hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/wal/ProcedureWALFile.java * (edit) hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/wal/ProcedureWALFormatReader.java * (edit) hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/TestWALProcedureStore.java > Procedure V2 - Recover 'updated' part of WAL tracker if trailer is corrupted. > ----------------------------------------------------------------------------- > > Key: HBASE-16554 > URL: https://issues.apache.org/jira/browse/HBASE-16554 > Project: HBase > Issue Type: Sub-task > Reporter: Appy > Assignee: Appy > Fix For: 2.0.0 > > Attachments: HBASE-16554.master.001.patch, > HBASE-16554.master.002.patch, tracker-rebuild.patch > > > If the last wal was closed cleanly, the global tracker will be the last wal > tracker (no rebuild needed) > if the last wal does not have a tracker (corrupted/master-killed). on load() > we will rebuild the global tracker. > To compute quickly which files should be deleted, we also want the tracker of > each file. > if the wal was closed properly and has a tracker we are good, if not we need > to rebuild the tracker for that file. > each file tracker contains a bitmap about what is in the wal (the updated > bitmap), which is easy to compute just by reading each entry of the wal. > The 'deleted' bitmap keeps track of the "running procedures" up to that wal, > however, it's not required by WAL cleaner, so we don't bother recovering it. -- This message was sent by Atlassian JIRA (v6.3.4#6332)