You probably want this.
https://issues.apache.org/jira/browse/HDFS-457
Koji
> As we can see here the data node shutdown. Should one disk entering a
> Read Only state really shut down the entire datanode? The datanode
> happily restarts once the disk was unmounted. just wondering?
On 8/7/09 12:11 PM, "Edward Capriolo" <edlinuxg...@gmail.com> wrote:
> I have a hadoop 18.3 cluster. Today I got two nagios alerts. Actually,
> I was excited by one of them because I never had a way to test
> check_hpacucli. Worked first time NIIIIIIICCEEEEEEEE. (Borat voice.)
> -------
> Notification Type: PROBLEM
>
> Service: check_remote_datanode
> Host: nyhadoopdata10.ops.jointhegrid.com
> Address: 10.12.9.20
> State: CRITICAL
>
> Date/Time: Fri Aug 7 18:24:58 GMT 2009
>
> Additional Info:
>
> Connection refused
>
> ------------------------------------------------------------------------------
> ----------------------------------
>
> Notification Type: PROBLEM
>
> Service: check_hpacucli
> Host: nyhadoopdata10.ops.jointhegrid.com
> Address: 10.12.9.20
> State: CRITICAL
>
> Date/Time: Fri Aug 7 18:23:18 GMT 2009
>
> Additional Info:
>
> CRITICAL Smart Array P400 in Unknown Slot OK/OK/- (LD 1: OK [(1I:1:1
> OK)] LD 2: OK [(1I:1:2 OK)] LD 3: OK [(1I:1:3 OK)] LD 4: OK [(1I:1:4
> OK)] LD 5: OK [(2I:1:5 OK)] LD 6: OK [(2I:1:6 OK)] LD 7: Failed
> [(2I:1:7 Failed)] LD 8: OK [(2I:1:8 OK)])
>
> /usr/sbin/hpacucli ctrl all show config detail
>
> physicaldrive 2I:1:7
> Port: 2I
> Box: 1
> Bay: 7
> Status: Failed
> Drive Type: Data Drive
> Interface Type: SAS
> Size: 1TB
> Rotational Speed: 7200
> Firmware Revision: HPD1
> Serial Number: XXXXXXXXXXXXXXXXXXXXXXXX
> Model: HP DB1000BABFF
> PHY Count: 2
> PHY Transfer Rate: 3.0GBPS, Unknown
>
> The drive was labeled as failed. It was in a READ ONLY state and
> sections of the drive would produce an IO error while attempting to
> read.
>
>
> The datanode logged.
> 2009-08-07 14:20:03,153 WARN org.apache.hadoop.dfs.DataNode: DataNode
> is shutting down.
> directory is not writable: /mnt/disk6/dfs/data/current
> 2009-08-07 14:20:03,244 INFO org.apache.hadoop.dfs.DataBlockScanner:
> Exiting DataBlockScanner thread.
> 2009-08-07 14:20:03,430 INFO org.apache.hadoop.dfs.DataNode:
> writeBlock blk_-2520177395705282298_448274 received exception
> java.io.IOException: Read-only file system
> 2009-08-07 14:20:03,430 ERROR org.apache.hadoop.dfs.DataNode:
> DatanodeRegistration(10.12.9.20:50010,
> storageID=DS-520493036-10.12.9.20-50010-1239749144772, infoPort=50075,
> ipcPort=50020):DataXceiver:
> java.io.IOException: Read-only file system
> at java.io.UnixFileSystem.createFileExclusively(Native Method)
> at java.io.File.createNewFile(File.java:883)
> at
> org.apache.hadoop.dfs.FSDataset$FSVolume.createTmpFile(FSDataset.java:388)
> at
> org.apache.hadoop.dfs.FSDataset$FSVolume.createTmpFile(FSDataset.java:359)
> at org.apache.hadoop.dfs.FSDataset.createTmpFile(FSDataset.java:1050)
> at org.apache.hadoop.dfs.FSDataset.writeToBlock(FSDataset.java:983)
> at
> org.apache.hadoop.dfs.DataNode$BlockReceiver.<init>(DataNode.java:2382)
> at
> org.apache.hadoop.dfs.DataNode$DataXceiver.writeBlock(DataNode.java:1234)
> at org.apache.hadoop.dfs.DataNode$DataXceiver.run(DataNode.java:1092)
> at java.lang.Thread.run(Thread.java:619)
>
> 2009-08-07 14:20:32,974 INFO org.apache.hadoop.dfs.DataNode:
> DatanodeRegistration(10.12.9.20:50010,
> storageID=DS-520493036-10.12.9.20-50010-1239749144772, infoPort=50075,
> ipcPort=50020):Finishing Dat
> aNode in:
> FSDataset{dirpath='/mnt/disk0/dfs/data/current,/mnt/disk1/dfs/data/current,/mn
> t/disk2/dfs/data/current,/mnt/disk3/dfs/data/current,/mnt/disk4/dfs/data/curre
> nt,/mnt/disk5/dfs/data/current,/m
> nt/disk6/dfs/data/current,/mnt/disk7/dfs/data/current'}
> 2009-08-07 14:20:32,974 INFO org.mortbay.util.ThreadedServer: Stopping
> Acceptor ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=50075]
> 2009-08-07 14:20:32,977 INFO org.mortbay.http.SocketListener: Stopped
> SocketListener on 0.0.0.0:50075
> 2009-08-07 14:20:33,155 INFO org.mortbay.util.Container: Stopped
> HttpContext[/static,/static]
> 2009-08-07 14:20:33,293 INFO org.mortbay.util.Container: Stopped
> HttpContext[/logs,/logs]
> 2009-08-07 14:20:33,293 INFO org.mortbay.util.Container: Stopped
> org.mortbay.jetty.servlet.webapplicationhand...@7444f787
> 2009-08-07 14:20:33,432 INFO org.mortbay.util.Container: Stopped
> WebApplicationContext[/,/]
> 2009-08-07 14:20:33,432 INFO org.mortbay.util.Container: Stopped
> org.mortbay.jetty.ser...@b035079
> 2009-08-07 14:20:33,432 INFO org.apache.hadoop.ipc.Server: Stopping
> server on 50020
> 2009-08-07 14:20:33,432 INFO org.apache.hadoop.ipc.Server: Stopping
> IPC Server Responder
> 2009-08-07 14:20:33,432 INFO org.apache.hadoop.dfs.DataNode: Waiting
> for threadgroup to exit, active threads is 0
> 2009-08-07 14:20:33,432 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 0 on 50020: exiting
> 2009-08-07 14:20:33,432 INFO org.apache.hadoop.ipc.Server: Stopping
> IPC Server listener on 50020
> 2009-08-07 14:20:33,432 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 1 on 50020: exiting
> 2009-08-07 14:20:33,432 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 2 on 50020: exiting
> 2009-08-07 14:20:33,434 INFO org.apache.hadoop.dfs.DataNode: SHUTDOWN_MSG:
> /************************************************************
> SHUTDOWN_MSG: Shutting down DataNode at nyhadoopdata10/10.12.9.20
> ************************************************************/
>
> As we can see here the data node shutdown. Should one disk entering a
> Read Only state really shut down the entire datanode? The datanode
> happily restarts once the disk was unmounted. just wondering?
