Ramya Sunil created HDFS-4802:
---------------------------------
Summary: Disallowing snapshot on / twice throws error
Key: HDFS-4802
URL: https://issues.apache.org/jira/browse/HDFS-4802
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Ramya Sunil
Fix For: Snapshot (HDFS-2802)
$ hadoop dfsadmin -allowSnapshot
/Allowing snaphot on / succeeded
$ hadoop dfsadmin -disallowSnapshot /
Disallowing snaphot on / succeeded
$ hadoop dfsadmin -disallowSnapshot /
disallowSnapshot: java.io.IOException: java.lang.IllegalStateException: Error
when removing a snapshottable dir: removed != to-be-removed
>From the logs:
{noformat}
INFO org.apache.hadoop.ipc.Server: IPC Server handler 34 on 8020, call
disallowSnapshot(/) from * error: java.io.IOException:
java.lang.IllegalStateException: Error when removing a snapshottable dir:
removed != to-be-removed
java.io.IOException: java.lang.IllegalStateException: Error when removing a
snapshottable dir: removed != to-be-removed
at
org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager.removeSnapshottable(SnapshotManager.java:126)
at
org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager.resetSnapshottable(SnapshotManager.java:159)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.disallowSnapshot(FSNamesystem.java:6779)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.disallowSnapshot(NameNode.java:1545)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:587)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1405)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1401)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1399)
{noformat}
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