Bryan Beaudreault created HBASE-28362:
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Summary: NPE calling bootstrapNodeManager during RegionServer
initialization
Key: HBASE-28362
URL: https://issues.apache.org/jira/browse/HBASE-28362
Project: HBase
Issue Type: Bug
Reporter: Bryan Beaudreault
Shortly after starting up, if a RegionServer is getting requests from clients
before it's ready (i.e. it restarts and they haven't cleared meta cache yet),
it will throw an NPE. This is because netty may bind and start accepting
requests before HRegionServer.preRegistrationInitialization finishes.
I think this is similar to https://issues.apache.org/jira/browse/HBASE-28088.
It's not critical because the RS self-resolves within a few seconds, but it
causes noise in the logs and probably errors for clients.
{code:java}
2024-02-13T18:24:02,537 [RpcServer.default.FPBQ.handler=6,queue=6,port=60020
{}] ERROR org.apache.hadoop.hbase.ipc.RpcServer: Unexpected throwable object
java.lang.NullPointerException: Cannot invoke
"org.apache.hadoop.hbase.regionserver.BootstrapNodeManager.getBootstrapNodes()"
because "this.bootstrapNodeManager" is null
at
org.apache.hadoop.hbase.regionserver.HRegionServer.getBootstrapNodes(HRegionServer.java:4179)
~[hbase-server-2.6-hubspot-SNAPSHOT.jar:2.6-hubspot-SNAPSHOT]
at
org.apache.hadoop.hbase.regionserver.RSRpcServices.getAllBootstrapNodes(RSRpcServices.java:4140)
~[hbase-server-2.6-hubspot-SNAPSHOT.jar:2.6-hubspot-SNAPSHOT]
at
org.apache.hadoop.hbase.shaded.protobuf.generated.BootstrapNodeProtos$BootstrapNodeService$2.callBlockingMethod(BootstrapNodeProtos.java:1259)
~[hbase-protocol-shaded-2.6-hubspot-SNAPSHOT.jar:2.6-hubspot-SNAPSHOT]
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:438)
~[hbase-server-2.6-hubspot-SNAPSHOT.jar:2.6-hubspot-SNAPSHOT]
at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:124)
~[hbase-server-2.6-hubspot-SNAPSHOT.jar:2.6-hubspot-SNAPSHOT] {code}
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