c7473df2c3
This patch adds mirroring of table state out to zookeeper. HBase-1.x clients look for table state in zookeeper, not in hbase:meta where hbase-2.x maintains table state. The patch also moves and refactors the 'migration' code that was put in place by HBASE-13032. D hbase-client/src/main/java/org/apache/hadoop/hbase/CoordinatedStateException.java Unused. M hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java Move table state migration code from Master startup out to TableStateManager where it belongs. Also start MirroringTableStateManager dependent on config. A hbase-server/src/main/java/org/apache/hadoop/hbase/master/MirroringTableStateManager.java M hbase-server/src/main/java/org/apache/hadoop/hbase/master/TableStateManager.java Move migration from zookeeper of table state in here. Also plumb in mechanism so subclass can get a chance to look at table state as we do the startup fixup full-table scan of meta. M hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/AssignmentManager.java Bug-fix. Now we create regions in CLOSED state but we fail to check table state; were presuming table always enabled. Meant on startup there'd be an unassigned region that never got assigned. A hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMirroringTableStateManager.java Test migration and mirroring. |
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README.txt
This module has proto files used by core. These protos overlap with protos that are used by coprocessor endpoints (CPEP) in the module hbase-protocol. So core versions have a different name, the generated classes are relocated -- i.e. shaded -- to a new location; they are moved from org.apache.hadoop.hbase.* to org.apache.hadoop.hbase.shaded.