Bug: The RSGroupAdminEndpoint is causing the hbase:meta region to be unable to come online.
Status: Open | Priority: Major | Resolution: 
Created: 20/Jul/23 02:48
Affects Version/s: 2.1.1

When I use RSGroupAdminEndpoint and restart both master before restarting the regionserver, I encounter a syscall:getsockopt(..) issue that prevents the hbase:meta region from coming online, resulting in a service exception.
{code:java}
2023-07-10 16:32:22,282 INFO  [org.apache.hadoop.hbase.rsgroup.RSGroupInfoManagerImpl$ServerEventsListenerThread-ysl104-qax.com,16000,1688977910162] rsgroup.RSGroupInfoManagerImpl$ServerEventsListenerThread: Updating default servers.
2023-07-10 16:32:22,299 INFO  [PEWorker-8] procedure.ServerCrashProcedure: Start pid=2, state=RUNNABLE:SERVER_CRASH_START, locked=true; ServerCrashProcedure server=ysl102-qax.com,16020,1688977249460, splitWal=true, meta=false
2023-07-10 16:32:22,400 INFO  [PEWorker-10] master.SplitLogManager: hdfs://HACluster/home/hbase/WALs/ysl102-qax.com,16020,1688977249460-splitting dir is empty, no logs to split.
2023-07-10 16:32:22,411 INFO  [PEWorker-10] master.SplitLogManager: Finished splitting (more than or equal to) 0 bytes in 0 log files in [hdfs://HACluster/home/hbase/WALs/ysl102-qax.com,16020,1688977249460-splitting] in 0ms
2023-07-10 16:32:22,521 INFO  [PEWorker-10] procedure2.ProcedureExecutor: Finished pid=2, state=SUCCESS; ServerCrashProcedure server=ysl102-qax.com,16020,1688977249460, splitWal=true, meta=false in 326msec
2023-07-10 16:32:22,941 INFO  [RegionServerTracker-0] master.RegionServerTracker: RegionServer ephemeral node deleted, processing expiration [ysl104-qax.com,16020,1688977251592]
2023-07-10 16:32:22,941 INFO  [RegionServerTracker-0] master.ServerManager: Processing expiration of ysl104-qax.com,16020,1688977251592 on ysl104-qax.com,16000,1688977910162
2023-07-10 16:32:23,069 INFO  [PEWorker-12] procedure.ServerCrashProcedure: Start pid=3, state=RUNNABLE:SERVER_CRASH_START, locked=true; ServerCrashProcedure server=ysl104-qax.com,16020,1688977251592, splitWal=true, meta=true
2023-07-10 16:32:23,126 INFO  [PEWorker-12] master.SplitLogManager: hdfs://HACluster/home/hbase/WALs/ysl104-qax.com,16020,1688977251592-splitting dir is empty, no logs to split.
2023-07-10 16:32:23,135 INFO  [PEWorker-12] master.SplitLogManager: Finished splitting (more than or equal to) 0 bytes in 0 log files in [hdfs://HACluster/home/hbase/WALs/ysl104-qax.com,16020,1688977251592-splitting] in 0ms
2023-07-10 16:32:23,174 INFO  [PEWorker-12] procedure2.ProcedureExecutor: Initialized subprocedures=[{pid=4, ppid=3, state=RUNNABLE:REGION_TRANSITION_QUEUE; AssignProcedure table=hbase:meta, region=1588230740}]
2023-07-10 16:32:23,206 INFO  [PEWorker-15] procedure.MasterProcedureScheduler: Took xlock for pid=4, ppid=3, state=RUNNABLE:REGION_TRANSITION_QUEUE; AssignProcedure table=hbase:meta, region=1588230740
2023-07-10 16:32:23,325 INFO  [PEWorker-15] assignment.AssignProcedure: Starting pid=4, ppid=3, state=RUNNABLE:REGION_TRANSITION_QUEUE, locked=true; AssignProcedure table=hbase:meta, region=1588230740; rit=OFFLINE, location=ysl104-qax.com,16020,1688977251592; forceNewPlan=false, retain=true
2023-07-10 16:32:23,476 WARN  [master/YSL104-QAX:16000] assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
2023-07-10 16:32:24,477 WARN  [master/YSL104-QAX:16000] assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
2023-07-10 16:32:25,478 WARN  [master/YSL104-QAX:16000] assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
2023-07-10 16:32:26,479 WARN  [master/YSL104-QAX:16000] assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
2023-07-10 16:32:26,665 INFO  [org.apache.hadoop.hbase.rsgroup.RSGroupInfoManagerImpl$ServerEventsListenerThread-ysl104-qax.com,16000,1688977910162] client.RpcRetryingCallerImpl: Call exception, tries=6, retries=46, started=4175 ms ago, cancelled=false, msg=Call to YSL104-QAX.COM/10.59.12.104:16020 failed on connection exception: org.apache.hbase.thirdparty.io.netty.channel.AbstractChannel$AnnotatedConnectException: syscall:getsockopt(..) failed: Connection refused: YSL104-QAX.COM/xx.xx.xx.104:16020, details=row 'hbase:rsgroup' on table 'hbase:meta' at region=hbase:meta,,1.1588230740, hostname=ysl104-qax.com,16020,1688977251592, seqNum=-1
2023-07-10 16:32:27,480 WARN  [master/YSL104-QAX:16000] assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
2023-07-10 16:32:28,481 WARN  [master/YSL104-QAX:16000] assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
2023-07-10 16:32:29,482 WARN  [master/YSL104-QAX:16000] assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
2023-07-10 16:32:30,483 WARN  [master/YSL104-QAX:16000] assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
2023-07-10 16:32:30,899 INFO  [org.apache.hadoop.hbase.rsgroup.RSGroupInfoManagerImpl$ServerEventsListenerThread-ysl104-qax.com,16000,1688977910162] client.RpcRetryingCallerImpl: Call exception, tries=7, retries=46, started=8409 ms ago, cancelled=false, msg=Connection closed, details=row 'hbase:rsgroup' on table 'hbase:meta' at region=hbase:meta,,1.1588230740, hostname=ysl104-qax.com,16020,1688977251592, seqNum=-1
2023-07-10 16:32:31,025 INFO  [RpcServer.default.FPBQ.Fifo.handler=198,queue=18,port=16000] master.ServerManager: Registering regionserver=ysl103-qax.com,16020,1688977946684
2023-07-10 16:32:31,064 INFO  [RegionServerTracker-0] master.RegionServerTracker: RegionServer ephemeral node created, adding [ysl103-qax.com,16020,1688977946684]
2023-07-10 16:32:31,439 INFO  [RpcServer.default.FPBQ.Fifo.handler=198,queue=18,port=16000] master.ServerManager: Registering regionserver=ysl102-qax.com,16020,1688977947399
2023-07-10 16:32:31,467 INFO  [RegionServerTracker-0] master.RegionServerTracker: RegionServer ephemeral node created, adding [ysl102-qax.com,16020,1688977947399]
2023-07-10 16:32:32,934 INFO  [RpcServer.default.FPBQ.Fifo.handler=198,queue=18,port=16000] master.ServerManager: Registering regionserver=ysl104-qax.com,16020,1688977948804
2023-07-10 16:32:32,965 INFO  [RegionServerTracker-0] master.RegionServerTracker: RegionServer ephemeral node created, adding [ysl104-qax.com,16020,1688977948804]
2023-07-10 16:32:41,041 INFO  [org.apache.hadoop.hbase.rsgroup.RSGroupInfoManagerImpl$ServerEventsListenerThread-ysl104-qax.com,16000,1688977910162] client.RpcRetryingCallerImpl: ption: hbase:meta,,1 is not online on ysl104-qax.com,16020,1688977948804
    at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:3316)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:3293)
    at org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegion(RSRpcServices.java:1431)
    at org.apache.hadoop.hbase.regionserver.RSRpcServices.get(RSRpcServices.java:2449)
    at org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:41998)
    at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
    at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
    at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
    at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)
, details=row 'hbase:rsgroup' on table 'hbase:meta' at region=hbase:meta,,1.1588230740, hostname=ysl104-qax.com,16020,1688977251592, seqNum=-1
2023-07-10 16:32:51,123 INFO  [org.apache.hadoop.hbase.rsgroup.RSGroupInfoManagerImpl$ServerEventsListenerThread-ysl104-qax.com,16000,1688977910162] client.RpcRetryingCallerImpl: ption: hbase:meta,,1 is not online on ysl104-qax.com,16020,1688977948804
    at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:3316)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:3293)
    at org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegion(RSRpcServices.java:1431)
    at org.apache.hadoop.hbase.regionserver.RSRpcServices.get(RSRpcServices.java:2449)
    at org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:41998)
    at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
    at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
    at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
    at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)
, details=row 'hbase:rsgroup' on table 'hbase:meta' at region=hbase:meta,,1.1588230740, hostname=ysl104-qax.com,16020,1688977251592, seqNum=-1
2023-07-10 16:33:01,212 INFO  [org.apache.hadoop.hbase.rsgroup.RSGroupInfoManagerImpl$ServerEventsListenerThread-ysl104-qax.com,16000,1688977910162] client.RpcRetryingCallerImpl: ption: hbase:meta,,1 is not online on ysl104-qax.com,16020,1688977948804
    at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:3316)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:3293)
    at org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegion(RSRpcServices.java:1431)
    at org.apache.hadoop.hbase.regionserver.RSRpcServices.get(RSRpcServices.java:2449)
    at org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:41998)
    at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
    at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
    at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
    at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)
, details=row 'hbase:rsgroup' on table 'hbase:meta' at region=hbase:meta,,1.1588230740, hostname=ysl104-qax.com,16020,1688977251592, seqNum=-1 {code}