[
https://issues.apache.org/jira/browse/HDDS-6443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Daniel resolved HDDS-6443.
--------------------------
Resolution: Not A Problem
> Datanode on K8s service is abnormal: UNAVAILABLE: io exception
> --------------------------------------------------------------
>
> Key: HDDS-6443
> URL: https://issues.apache.org/jira/browse/HDDS-6443
> Project: Apache Ozone
> Issue Type: Bug
> Components: Ozone Datanode
> Affects Versions: 1.2.1
> Environment: The environment information is as follows:
> 1. Kubernetes: RK2 deployment K8s environment
> Rke2 version v1.21.9 + rke2r1
> 2. Ozone version: 1.2.1
> Reporter: Daniel
> Priority: Major
>
> h2. 1. Test demo
> Kubernetes Demo is provided in the following path:
> Ozone - 1.2.1 / kubernetes/examples/ozone
> h2. 2. Process
> Use the following command to deploy Ozone:
> kubectl apply-f .
>
> Error messages are displayed on three DataNode nodes:
> {code:java}
> 2022-03-14 07:07:46 INFO RaftServerConfigKeys:44 -
> raft.server.leaderelection.pre-vote = false (custom)
> 2022-03-14 07:07:46 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection29
> 2022-03-14 07:07:46 INFO LeaderElection:306 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection29
> ELECTION round 0: submit vote requests at term 23 for 0:
> [e234f526-1428-46aa-b0d8-38c691c3be9b|rpc:10.42.10.15:9856|admin:10.42.10.15:9857|client:10.42.10.15:9858|dataStream:|priority:0,
>
> 8b4da263-b3d6-413e-8365-50f05ed24042|rpc:10.42.9.21:9856|admin:10.42.9.21:9857|client:10.42.9.21:9858|dataStream:|priority:1,
>
> f99fd814-46cc-4192-b81d-1c98b5861cb7|rpc:10.42.7.23:9856|admin:10.42.7.23:9857|client:10.42.7.23:9858|dataStream:|priority:0],
> old=null
> 2022-03-14 07:07:46 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection29 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:47 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection29 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:47 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection28 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:47 INFO LeaderElection:89 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection29:
> ELECTION REJECTED received 0 response(s) and 2 exception(s):
> 2022-03-14 07:07:47 INFO LeaderElection:89 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection28:
> ELECTION REJECTED received 0 response(s) and 2 exception(s):
> 2022-03-14 07:07:47 INFO LeaderElection:137 - Exception 0:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:47 INFO LeaderElection:137 - Exception 1:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:47 INFO LeaderElection:137 - Exception 0:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:47 INFO LeaderElection:137 - Exception 1:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:47 INFO LeaderElection:308 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection29
> ELECTION round 0: result REJECTED
> 2022-03-14 07:07:47 INFO LeaderElection:308 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection28
> ELECTION round 0: result REJECTED
> 2022-03-14 07:07:47 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3: changes role from
> CANDIDATE to FOLLOWER at term 23 for REJECTED
> 2022-03-14 07:07:47 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC: changes role from
> CANDIDATE to FOLLOWER at term 20 for REJECTED
> 2022-03-14 07:07:47 INFO RoleInfo:121 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection29
> 2022-03-14 07:07:47 INFO RoleInfo:121 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection28
> 2022-03-14 07:07:47 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-FollowerState
> 2022-03-14 07:07:47 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-FollowerState
> 2022-03-14 07:07:52 INFO FollowerState:134 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-FollowerState: change
> to CANDIDATE, lastRpcElapsedTime:5083479945ns, electionTimeout:5083ms
> 2022-03-14 07:07:52 INFO RoleInfo:108 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-FollowerState
> 2022-03-14 07:07:52 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC: changes role from
> FOLLOWER to CANDIDATE at term 20 for changeToCandidate
> 2022-03-14 07:07:52 INFO RaftServerConfigKeys:44 -
> raft.server.leaderelection.pre-vote = false (custom)
> 2022-03-14 07:07:52 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection30
> 2022-03-14 07:07:52 INFO LeaderElection:306 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection30
> ELECTION round 0: submit vote requests at term 21 for 0:
> [e234f526-1428-46aa-b0d8-38c691c3be9b|rpc:10.42.10.15:9856|admin:10.42.10.15:9857|client:10.42.10.15:9858|dataStream:|priority:0,
>
> 8b4da263-b3d6-413e-8365-50f05ed24042|rpc:10.42.9.21:9856|admin:10.42.9.21:9857|client:10.42.9.21:9858|dataStream:|priority:0,
>
> f99fd814-46cc-4192-b81d-1c98b5861cb7|rpc:10.42.7.23:9856|admin:10.42.7.23:9857|client:10.42.7.23:9858|dataStream:|priority:1],
> old=null
> 2022-03-14 07:07:52 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection30 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:52 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection30 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:52 INFO LeaderElection:89 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection30:
> ELECTION REJECTED received 0 response(s) and 2 exception(s):
> 2022-03-14 07:07:52 INFO LeaderElection:137 - Exception 0:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:52 INFO LeaderElection:137 - Exception 1:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:52 INFO LeaderElection:308 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection30
> ELECTION round 0: result REJECTED
> 2022-03-14 07:07:52 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC: changes role from
> CANDIDATE to FOLLOWER at term 21 for REJECTED
> 2022-03-14 07:07:52 INFO RoleInfo:121 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection30
> 2022-03-14 07:07:52 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-FollowerState
> 2022-03-14 07:07:52 INFO FollowerState:134 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-FollowerState: change
> to CANDIDATE, lastRpcElapsedTime:5155386314ns, electionTimeout:5155ms
> 2022-03-14 07:07:52 INFO RoleInfo:108 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-FollowerState
> 2022-03-14 07:07:52 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3: changes role from
> FOLLOWER to CANDIDATE at term 23 for changeToCandidate
> 2022-03-14 07:07:52 INFO RaftServerConfigKeys:44 -
> raft.server.leaderelection.pre-vote = false (custom)
> 2022-03-14 07:07:52 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection31
> 2022-03-14 07:07:52 INFO LeaderElection:306 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection31
> ELECTION round 0: submit vote requests at term 24 for 0:
> [e234f526-1428-46aa-b0d8-38c691c3be9b|rpc:10.42.10.15:9856|admin:10.42.10.15:9857|client:10.42.10.15:9858|dataStream:|priority:0,
>
> 8b4da263-b3d6-413e-8365-50f05ed24042|rpc:10.42.9.21:9856|admin:10.42.9.21:9857|client:10.42.9.21:9858|dataStream:|priority:1,
>
> f99fd814-46cc-4192-b81d-1c98b5861cb7|rpc:10.42.7.23:9856|admin:10.42.7.23:9857|client:10.42.7.23:9858|dataStream:|priority:0],
> old=null
> 2022-03-14 07:07:52 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection31 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:52 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection31 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:52 INFO LeaderElection:89 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection31:
> ELECTION REJECTED received 0 response(s) and 2 exception(s):
> 2022-03-14 07:07:52 INFO LeaderElection:137 - Exception 0:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:52 INFO LeaderElection:137 - Exception 1:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:52 INFO LeaderElection:308 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection31
> ELECTION round 0: result REJECTED
> 2022-03-14 07:07:52 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3: changes role from
> CANDIDATE to FOLLOWER at term 24 for REJECTED
> 2022-03-14 07:07:52 INFO RoleInfo:121 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection31
> 2022-03-14 07:07:52 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-FollowerState
> 2022-03-14 07:07:57 INFO FollowerState:134 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-FollowerState: change
> to CANDIDATE, lastRpcElapsedTime:5070286545ns, electionTimeout:5070ms
> 2022-03-14 07:07:57 INFO RoleInfo:108 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-FollowerState
> 2022-03-14 07:07:57 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC: changes role from
> FOLLOWER to CANDIDATE at term 21 for changeToCandidate
> 2022-03-14 07:07:57 INFO RaftServerConfigKeys:44 -
> raft.server.leaderelection.pre-vote = false (custom)
> 2022-03-14 07:07:57 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection32
> 2022-03-14 07:07:57 INFO LeaderElection:306 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection32
> ELECTION round 0: submit vote requests at term 22 for 0:
> [e234f526-1428-46aa-b0d8-38c691c3be9b|rpc:10.42.10.15:9856|admin:10.42.10.15:9857|client:10.42.10.15:9858|dataStream:|priority:0,
>
> 8b4da263-b3d6-413e-8365-50f05ed24042|rpc:10.42.9.21:9856|admin:10.42.9.21:9857|client:10.42.9.21:9858|dataStream:|priority:0,
>
> f99fd814-46cc-4192-b81d-1c98b5861cb7|rpc:10.42.7.23:9856|admin:10.42.7.23:9857|client:10.42.7.23:9858|dataStream:|priority:1],
> old=null
> 2022-03-14 07:07:57 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection32 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:57 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection32 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:57 INFO LeaderElection:89 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection32:
> ELECTION REJECTED received 0 response(s) and 2 exception(s):
> 2022-03-14 07:07:57 INFO LeaderElection:137 - Exception 0:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:57 INFO LeaderElection:137 - Exception 1:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:57 INFO LeaderElection:308 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection32
> ELECTION round 0: result REJECTED
> 2022-03-14 07:07:57 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC: changes role from
> CANDIDATE to FOLLOWER at term 22 for REJECTED
> 2022-03-14 07:07:57 INFO RoleInfo:121 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-LeaderElection32
> 2022-03-14 07:07:57 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-5C6EE74DD0AC-FollowerState
> 2022-03-14 07:07:57 INFO FollowerState:134 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-FollowerState: change
> to CANDIDATE, lastRpcElapsedTime:5088311189ns, electionTimeout:5088ms
> 2022-03-14 07:07:57 INFO RoleInfo:108 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-FollowerState
> 2022-03-14 07:07:57 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3: changes role from
> FOLLOWER to CANDIDATE at term 24 for changeToCandidate
> 2022-03-14 07:07:57 INFO RaftServerConfigKeys:44 -
> raft.server.leaderelection.pre-vote = false (custom)
> 2022-03-14 07:07:57 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection33
> 2022-03-14 07:07:57 INFO LeaderElection:306 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection33
> ELECTION round 0: submit vote requests at term 25 for 0:
> [e234f526-1428-46aa-b0d8-38c691c3be9b|rpc:10.42.10.15:9856|admin:10.42.10.15:9857|client:10.42.10.15:9858|dataStream:|priority:0,
>
> 8b4da263-b3d6-413e-8365-50f05ed24042|rpc:10.42.9.21:9856|admin:10.42.9.21:9857|client:10.42.9.21:9858|dataStream:|priority:1,
>
> f99fd814-46cc-4192-b81d-1c98b5861cb7|rpc:10.42.7.23:9856|admin:10.42.7.23:9857|client:10.42.7.23:9858|dataStream:|priority:0],
> old=null
> 2022-03-14 07:07:57 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection33 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:57 INFO LeaderElection:137 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection33 got
> exception when requesting votes: java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:57 INFO LeaderElection:89 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection33:
> ELECTION REJECTED received 0 response(s) and 2 exception(s):
> 2022-03-14 07:07:57 INFO LeaderElection:137 - Exception 0:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:57 INFO LeaderElection:137 - Exception 1:
> java.util.concurrent.ExecutionException:
> org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io
> exception
> 2022-03-14 07:07:57 INFO LeaderElection:308 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection33
> ELECTION round 0: result REJECTED
> 2022-03-14 07:07:57 INFO RaftServer$Division:290 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3: changes role from
> CANDIDATE to FOLLOWER at term 25 for REJECTED
> 2022-03-14 07:07:57 INFO RoleInfo:121 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: shutdown
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-LeaderElection33
> 2022-03-14 07:07:57 INFO RoleInfo:130 -
> f99fd814-46cc-4192-b81d-1c98b5861cb7: start
> f99fd814-46cc-4192-b81d-1c98b5861cb7@group-AAC5FB8455D3-FollowerState
> {code}
> The logs for all three DataNode Pods are similar, and the logs are constantly
> refreshed.
> h2. Validation functions
> kubectl exec --stdin -n ozone --tty datanode-0 -- /bin/bash
> bash-4.2$ ozone sh volume create volume1
> bash-4.2$ ozone sh bucket create /volume1/bucket1
> INTERNAL_ERROR Allocated 0 blocks. Requested 1 blocks
> According to the error log information，we can see that the DataNode is
> abnormal.
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