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https://issues.apache.org/jira/browse/HDDS-10300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siyao Meng resolved HDDS-10300.
-------------------------------
    Resolution: Won't Fix

> InstallSnapshot may fail if OM metadata dir and OM DB dir are in different 
> local storage partitions
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HDDS-10300
>                 URL: https://issues.apache.org/jira/browse/HDDS-10300
>             Project: Apache Ozone
>          Issue Type: Bug
>            Reporter: Wei-Chiu Chuang
>            Assignee: Aswin Shakil
>            Priority: Major
>              Labels: pull-request-available
>
> OM DB snapshot installation requires hard link, which can fail if OM metadata 
> dir and OM DB dir are in different partitions.
> {noformat}
> 2024-01-31 14:14:59,406 ERROR 
> [pool-33-thread-1]-org.apache.hadoop.ozone.om.OzoneManager: Failed to move 
> downloaded DB checkpoint 
> /dfs1/hadoop-ozone/om/ozone-metadata/snapshot/om.db.candidate to metadata 
> directory /ssd/hadoop-ozone/om/data/om.db. Exception: {}. Resetting to 
> original DB.
> java.nio.file.FileSystemException: /ssd/hadoop-ozone/om/data/om.db/000031.sst 
> -> /dfs1/hadoop-ozone/om/ozone-metadata/snapshot/om.db.candidate/000031.sst: 
> 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.hadoop.ozone.om.snapshot.OmSnapshotUtils.linkFiles(OmSnapshotUtils.java:169)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.moveCheckpointFiles(OzoneManager.java:3816)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.replaceOMDBWithCheckpoint(OzoneManager.java:3796)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.installCheckpoint(OzoneManager.java:3671)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.installCheckpoint(OzoneManager.java:3606)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.installSnapshotFromLeader(OzoneManager.java:3583)
>         at 
> org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.lambda$6(OzoneManagerStateMachine.java:513)
>         at 
> java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1604)
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>         at java.lang.Thread.run(Thread.java:750)
> 2024-01-31 14:14:59,406 ERROR 
> [pool-33-thread-1]-org.apache.hadoop.ozone.om.OzoneManager: Failed to install 
> Snapshot from om3 as OM failed to replace DB with downloaded checkpoint. 
> Reloading old OM state.
> java.nio.file.FileSystemException: /ssd/hadoop-ozone/om/data/om.db/000031.sst 
> -> /dfs1/hadoop-ozone/om/ozone-metadata/snapshot/om.db.candidate/000031.sst: 
> 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.hadoop.ozone.om.snapshot.OmSnapshotUtils.linkFiles(OmSnapshotUtils.java:169)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.moveCheckpointFiles(OzoneManager.java:3816)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.replaceOMDBWithCheckpoint(OzoneManager.java:3796)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.installCheckpoint(OzoneManager.java:3671)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.installCheckpoint(OzoneManager.java:3606)
>         at 
> org.apache.hadoop.ozone.om.OzoneManager.installSnapshotFromLeader(OzoneManager.java:3583)
>         at 
> org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.lambda$6(OzoneManagerStateMachine.java:513)
>         at 
> java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1604)
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>         at java.lang.Thread.run(Thread.java:750)
> {noformat}



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