[HBASE-6268] Can't enable a table on a 0.94 cluster from a 0.92 client

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.92.2, 0.94.2
• Hadoop Flags: Reviewed
• Assignee: Ted Yu
• Reporter: Jean-Daniel Cryans
• Created: 26/Jun/12 00:07
• Updated: 24/Oct/12 05:40
• Resolved: 31/Aug/12 05:33

Description

In 0.92 we know a table's enabled by doing this in HCM.isEnabledTable:

return getTableState(zkw, tableName) == null;

In 0.94 we do:

return getTableState(zkw, tableName) == TableState.ENABLED;

So what happens is that the the 0.92 client will hang forever since the znode contains ENABLED instead of being absent.