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https://issues.apache.org/jira/browse/HBASE-16359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15669615#comment-15669615
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Nick Dimiduk commented on HBASE-16359:
--------------------------------------
+1 for branch-1.1 if it's making it's way down the release lines.
> NullPointerException in RSRpcServices.openRegion()
> --------------------------------------------------
>
> Key: HBASE-16359
> URL: https://issues.apache.org/jira/browse/HBASE-16359
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.1.2
> Reporter: Ted Yu
> Assignee: Ted Yu
> Fix For: 2.0.0, 1.4.0
>
> Attachments: 16359.addendum, 16359.v2.txt
>
>
> I was investigating why some region failed to move out of transition within
> timeout 120000ms and found the following in region server log:
> {code}
> 2016-08-04 09:19:52,616 INFO
> [B.priority.fifo.QRpcServer.handler=12,queue=0,port=16020]
> regionserver.RSRpcServices: Open hbck_table_772674,,1470302211047.
> da859880bb51bc0fd25979798a96c444.
> 2016-08-04 09:19:52,620 ERROR
> [B.priority.fifo.QRpcServer.handler=12,queue=0,port=16020] ipc.RpcServer:
> Unexpected throwable object
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.openRegion(RSRpcServices.java:1530)
> at
> org.apache.hadoop.hbase.protobuf.generated.AdminProtos$AdminService$2.callBlockingMethod(AdminProtos.java:22737)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2127)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:107)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
> {code}
> Here is related code - NPE was thrown from the last line:
> {code}
> htd = htds.get(region.getTable());
> if (htd == null) {
> htd = regionServer.tableDescriptors.get(region.getTable());
> htds.put(region.getTable(), htd);
> }
> ...
> if (region.isMetaRegion()) {
> regionServer.service.submit(new OpenMetaHandler(
> regionServer, regionServer, region, htd, masterSystemTime,
> coordination, ord));
> } else {
>
> regionServer.updateRegionFavoredNodesMapping(region.getEncodedName(),
> regionOpenInfo.getFavoredNodesList());
> if (htd.getPriority() >= HConstants.ADMIN_QOS ||
> region.getTable().isSystemTable()) {
> {code}
> region.getTable() shouldn't be null since it is called via
> htds.get(region.getTable()) unconditionally.
> It seems htd was null.
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