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HBASE-28180 Review the usage of RegionStates.getOrCreateServer - #5486
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Oct 30, 2023
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Apache9
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Nov 4, 2023
··· There are still some missing places where we fail to create the server state node. Let me dig more. |
Apache9
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Nov 4, 2023
Ah the log is too big so it has been truncated... Let me see if I can reproduce the problem locally... |
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Apache9
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Nov 4, 2023
OK, we can see that The target region server is already dead, as it has a SCP for it. And in the above log, the SCP finishes before we want to persist the location to hbase:meta in regionOpening(because 021d69fb7740,44905,1699038567953 is the one which holds hbase:meta...), and finally lead to the NPE... Let me think how to fix this. |
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Nov 8, 2023
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Apache9
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Nov 8, 2023
The failed UT seems related. Let me check. |
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Dec 2, 2023
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Apache9
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Dec 3, 2023
Let me check what is the root cause. |
Apache9
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Dec 3, 2023
For rollback SCP, the error is Let me dig more on why this could happen. |
Apache9
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Dec 3, 2023
OK, it happens while we are restarting the assignment manager, where the server state nodes have not been intialized yet... Let me think how we can fix this, it could cause bunch of procedure related tests to be flaky... |
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Dec 3, 2023
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Apache9
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Dec 6, 2023
I think the failure is introduced by HBASE-28199, where we may will add procedure back in a thread other than PEWorker. Let me think how to fix this... |
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Dec 15, 2023
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Apache9
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Dec 16, 2023
OK, good, finally all green! |
Signed-off-by: Xiaolin Ha <haxiaolin@apache.org> (cherry picked from commit e45b9c4)
Signed-off-by: Xiaolin Ha <haxiaolin@apache.org> (cherry picked from commit e45b9c4)
Signed-off-by: Xiaolin Ha <haxiaolin@apache.org> (cherry picked from commit e45b9c4)
…e#5486) Signed-off-by: Xiaolin Ha <haxiaolin@apache.org>
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