Description
This commit broke our 0.92/0.94 compatibility:
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r1136686 | stack | 2011-06-16 14:18:08 -0700 (Thu, 16 Jun 2011) | 1 line
HBASE-3927 display total uncompressed byte size of a region in web UI
I just tried the new RC for 0.94. I brought up a 0.94 master on a 0.92 cluster and rather than just digest version 1 of the HServerLoad, I get this:
2012-04-14 22:47:59,752 WARN org.apache.hadoop.ipc.HBaseServer: Unable to read call parameters for client 10.4.14.38 java.io.IOException: Error in readFields at org.apache.hadoop.hbase.io.HbaseObjectWritable.readObject(HbaseObjectWritable.java:684) at org.apache.hadoop.hbase.ipc.Invocation.readFields(Invocation.java:125) at org.apache.hadoop.hbase.ipc.HBaseServer$Connection.processData(HBaseServer.java:1269) at org.apache.hadoop.hbase.ipc.HBaseServer$Connection.readAndProcess(HBaseServer.java:1184) at org.apache.hadoop.hbase.ipc.HBaseServer$Listener.doRead(HBaseServer.java:722) at org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:513) at org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:488) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: A record version mismatch occured. Expecting v2, found v1 at org.apache.hadoop.io.VersionedWritable.readFields(VersionedWritable.java:46) at org.apache.hadoop.hbase.HServerLoad$RegionLoad.readFields(HServerLoad.java:379) at org.apache.hadoop.hbase.HServerLoad.readFields(HServerLoad.java:686) at org.apache.hadoop.hbase.io.HbaseObjectWritable.readObject(HbaseObjectWritable.java:681) ... 9 more