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Posted to issues@ratis.apache.org by "Marton Elek (Jira)" <ji...@apache.org> on 2019/10/10 14:41:00 UTC

[jira] [Created] (RATIS-706) Dead lock in GrpcClientRpc

Marton Elek created RATIS-706:
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             Summary: Dead lock in GrpcClientRpc
                 Key: RATIS-706
                 URL: https://issues.apache.org/jira/browse/RATIS-706
             Project: Ratis
          Issue Type: Bug
          Components: gRPC
            Reporter: Marton Elek
         Attachments: jstack.txt

I started an Ozone cluster on Kubernetes and started a freon test (ozone freon ockg -n10000)

After a while I found that the one freon instance is not creating keys any more. I checked the om RPC endpoint with ozone insight and no RPC messages has been arrived.

Based on the jstack output we have a deadlock between PeerProxyMap.handleException and GrpcClientRpc.sendRequestAsync.

I am not sure (yet) what is the exact problem, but based on the stack traces It seems to be Ratis related.



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