[jira] [Assigned] (IOTDB-3771) [ snapshot ] consensus_dir and data_dirs are not on the same disk , snapshot fails

["Song Ziyang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IOTDB-3771?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Song Ziyang reassigned IOTDB-3771:
----------------------------------

    Assignee: Liuxuxin  (was: Song Ziyang)

> [ snapshot ] consensus_dir and data_dirs are not on the same disk , snapshot fails
> ----------------------------------------------------------------------------------
>
>                 Key: IOTDB-3771
>                 URL: https://issues.apache.org/jira/browse/IOTDB-3771
>             Project: Apache IoTDB
>          Issue Type: Bug
>          Components: mpp-cluster
>    Affects Versions: 0.14.0-SNAPSHOT
>            Reporter: 刘珍
>            Assignee: Liuxuxin
>            Priority: Major
>         Attachments: 44231657180320_.pic.jpg
>
>
> master_0707_bd0bab3
> RatisConsensus ， consensus_dir和data_dirs不在同一块磁盘，快照失败
> # consensus_dir=data/consensus   (/data3下）
> data_dirs=/data2/mpp_data/data,/data1/mpp_data/data
> 2022-07-07 15:01:08,227 [192.168.130.3_40010@group-000100000005-StateMachineUpdater] ERROR o.a.i.d.e.s.SnapshotTaker:102 - Fail to create snapshot
> java.nio.file.FileSystemException: /data3/cluster_test/master_0707_bd0bab3/datanode/sbin/../data/consensus/data_region/47474747-4747-4747-4747-000100000005/sm/1_399999/sequence/root.test.g_0/5/0/1657176628996-16-0-0.tsfile.resource -> /data1/mpp_data/data/sequence/root.test.g_0/5/0/1657176628996-16-0-0.tsfile.resource: Invalid cross-device link
>         at sun.nio.fs.UnixException.translateToIOException(UnixException.java:91)
>         at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
>         at sun.nio.fs.UnixFileSystemProvider.createLink(UnixFileSystemProvider.java:476)
>         at java.nio.file.Files.createLink(Files.java:1086)
>         at org.apache.iotdb.db.engine.snapshot.SnapshotTaker.createFileSnapshot(SnapshotTaker.java:184)
>         at org.apache.iotdb.db.engine.snapshot.SnapshotTaker.takeFullSnapshot(SnapshotTaker.java:100)
>         at org.apache.iotdb.db.consensus.statemachine.DataRegionStateMachine.takeSnapshot(DataRegionStateMachine.java:66)
>         at org.apache.iotdb.consensus.ratis.ApplicationStateMachineProxy.takeSnapshot(ApplicationStateMachineProxy.java:163)
>         at org.apache.ratis.server.impl.StateMachineUpdater.takeSnapshot(StateMachineUpdater.java:270)
>         at org.apache.ratis.server.impl.StateMachineUpdater.checkAndTakeSnapshot(StateMachineUpdater.java:262)
>         at org.apache.ratis.server.impl.StateMachineUpdater.run(StateMachineUpdater.java:183)
>         at java.lang.Thread.run(Thread.java:748)
> 2022-07-07 15:01:08,229 [192.168.130.3_40010@group-000100000005-StateMachineUpdater] ERROR o.a.i.d.e.s.SnapshotTaker:194 - Failed to delete link file /data3/cluster_test/master_0707_bd0bab3/datanode/sbin/../data/consensus/data_region/47474747-4747-4747-4747-000100000005/sm/1_399999/sequence after failing to create snapshot



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