Re: problem starting cdh3b2 jobtracker

Fri, 06 Aug 2010 10:48:36 -0700 

Please keep discussions of CDH confined to Cloudera's email lists.

On Aug 6, 2010, at 3:43 AM, Harsh J wrote:


java.io.IOException: Cannot create toBeDeleted in /data1/mapred/local

This line points at the solution actually. In earlier versions of CDH
if the list of local mapred directories had false ones (like say the
jobtracker machine not having 2 disks like all the tasktracking
machines and it not being in the slaves list either), it used to
ignore it. Now it doesn't seem to and instead tries to operate things
upon it? Looks like a major bug Cloudera folks! Encountered this using
CDH3 +320. Not using my jobtracker machine to perform tasks as well.

It gets resolved after you validate the mapred local directory list on
the job tracker machine's config alone. However, this would lead to
issues with conf-syncing between nodes if it acts this way forever.

On Fri, Jul 2, 2010 at 8:32 AM, Ted Yu <yuzhih...@gmail.com> wrote:
We installed cdh3b2 0.20.2+320 and saw some strange error in jobtracker log:
2010-07-02 01:49:31,977 INFO org.apache.hadoop.mapred.JobTracker: JobTracker 
up at: 9001
2010-07-02 01:49:31,977 INFO org.apache.hadoop.mapred.JobTracker: JobTracker 
webserver: 50030
2010-07-02 01:49:31,988 WARN org.apache.hadoop.mapred.JobTracker: Error 
starting tracker: java.io.IOException: Cannot create toBeDeleted in
/data1/mapred/local
   at
org .apache .hadoop.util.MRAsyncDiskService.<init>(MRAsyncDiskService.java:85) at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java: 1688) at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:199) at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:191) 
   at org.apache.hadoop.mapred.JobTracker.main(JobTracker.java:3765)
2010-07-02 01:49:32,990 INFO org.apache.hadoop.mapred.JobTracker: Scheduler 
configured with (memSizeForMapSlotOnJT, memSizeForReduceSlotOnJT,
limitMaxMemForMapTasks, limitMaxMemForReduceTasks) (-1, -1, -1, -1)
2010-07-02 01:49:32,991 FATAL org.apache.hadoop.mapred.JobTracker:
java.net.BindException: Problem binding to
sjc1-hadoop0.sjc1.ciq.com/10.201.8.204:9001<http://sjc1-hadoop0.sjc1.carrieriq.com/10.201.8.204:9001 >: 
Address already in use
   at org.apache.hadoop.ipc.Server.bind(Server.java:198)
   at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:261)
   at org.apache.hadoop.ipc.Server.<init>(Server.java:1043)
   at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:492)
   at org.apache.hadoop.ipc.RPC.getServer(RPC.java:454)
at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java: 1628) at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:199) at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:191) 
   at org.apache.hadoop.mapred.JobTracker.main(JobTracker.java:3765)
Caused by: java.net.BindException: Address already in use
   at sun.nio.ch.Net.bind(Native Method)
   at
sun .nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java: 119) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java: 59) 
   at org.apache.hadoop.ipc.Server.bind(Server.java:196)
   ... 8 more

2010-07-02 01:49:32,992 INFO org.apache.hadoop.mapred.JobTracker:
SHUTDOWN_MSG:

But 9001 wasn't used:
[sjc1-hadoop0.sjc1:hadoop 25618]netstat -nta | grep 9001
[sjc1-hadoop0.sjc1:hadoop 25619]netstat -nta | grep 9000
tcp        0      0 10.201.8.204:9000           0.0.0.0:*
LISTEN
tcp        0      0 10.201.8.204:9000           10.201.8.214:4223
ESTABLISHED
tcp        0      0 10.201.8.204:9000           10.201.8.212:49074
ESTABLISHED
tcp        0      0 10.201.8.204:9000           10.201.8.206:11910
ESTABLISHED
tcp        0      0 10.201.8.204:9000           10.201.8.210:62611
ESTABLISHED
tcp        0      0 10.201.8.204:9000           10.201.8.213:1299
ESTABLISHED
tcp        0      0 10.201.8.204:9000           10.201.8.205:9756
ESTABLISHED
tcp        0      0 10.201.8.204:9000           10.201.8.207:59207
ESTABLISHED

Here is output from ifconfig:
bond0     Link encap:Ethernet  HWaddr 00:30:48:60:53:94
inet addr:10.201.8.204 Bcast:10.201.8.255 Mask: 255.255.255.0 
         UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
RX packets:351496605 errors:0 dropped:1015 overruns:0 frame:0 
         TX packets:178144953 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
RX bytes:119420730164 (111.2 GiB) TX bytes:120002123131 (111.7 
GiB)

eth0      Link encap:Ethernet  HWaddr 00:30:48:60:53:94
         UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
RX packets:351496605 errors:0 dropped:1015 overruns:0 frame:0 
         TX packets:178144953 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
RX bytes:119420730164 (111.2 GiB) TX bytes:120002123131 (111.7 
GiB)
         Interrupt:161

eth1      Link encap:Ethernet  HWaddr 00:30:48:60:53:94
         UP BROADCAST SLAVE MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
         Interrupt:169

Has anyone encountered similar issue ?





--
Harsh J
www.harshj.com

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