When assigning regions to an address, check the regionserver is actually online
first
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Key: HBASE-3918
URL: https://issues.apache.org/jira/browse/HBASE-3918
Project: HBase
Issue Type: Bug
Reporter: stack
This one came up in the case where the data was copied from one cluster to
another. The first cluster was running 0.89.x. The second 0.90.x. On startup
of 0.90.x, it wanted to verify .META. was in the location -ROOT- said it was
at, so it tried connect to the FIRST cluster. The attempt failed because of
mismatched RPCs. The master then actually aborted.
{code}
org.apache.hadoop.hbase.ipc.HBaseRPC$VersionMismatch: Protocol
org.apache.hadoop.hbase.ipc.HRegionInterface version mismatch. (client = 27,
server = 24)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:424)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:393)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:444)
at org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:349)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:965)
at
org.apache.hadoop.hbase.catalog.CatalogTracker.getCachedConnection(CatalogTracker.java:386)
at
org.apache.hadoop.hbase.catalog.CatalogTracker.getMetaServerConnection(CatalogTracker.java:285)
at
org.apache.hadoop.hbase.catalog.CatalogTracker.verifyMetaRegionLocation(CatalogTracker.java:486)
at org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:442)
at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:389)
at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:283)
2011-05-23 22:38:07,720 INFO org.apache.hadoop.hbase.master.HMaster: Aborting
{code}
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