FAQ
Hi,

I got some question after deploy hadoop-0.21.0 need to help.
There is a new deploy not update, and i execute start-hdfs.sh,
start-mapred.sh, got the message in the log file below:

2010-10-14 16:59:55,354 INFO org.apache.hadoop.ipc.Server: IPC Server
listener on 9000: readAndProcess threw exception java.io.IOException: Unable
to read authentication method. Count of bytes read: 0
java.io.IOException: Unable to read authentication method
at
org.apache.hadoop.ipc.Server$Connection.readAndProcess(Server.java:1079)
at org.apache.hadoop.ipc.Server$Listener.doRead(Server.java:525)
at org.apache.hadoop.ipc.Server$Listener$Reader.run(Server.java:332)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)


And i want to query dfs, got this message:

[hadoop@HadoopNameSlave conf]$ /usr/local/hadoop/bin/hadoop fs -lsr
hdfs://HadoopNameVIP:9000/
10/10/14 16:57:08 INFO security.Groups: Group mapping
impl=org.apache.hadoop.security.ShellBasedUnixGroupsMapping;
cacheTimeout=300000
10/10/14 16:57:09 WARN conf.Configuration: mapred.task.id is deprecated.
Instead, use mapreduce.task.attempt.id

Who can tell me what problem for these? is it the config issue?

Thanks & Regards,
Singo

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  • SingoWong at Oct 15, 2010 at 7:43 am
    Hi,

    The first issue was sloved, the second warring message still existing...
    On Thu, Oct 14, 2010 at 5:03 PM, SingoWong wrote:

    Hi,

    I got some question after deploy hadoop-0.21.0 need to help.
    There is a new deploy not update, and i execute start-hdfs.sh,
    start-mapred.sh, got the message in the log file below:

    2010-10-14 16:59:55,354 INFO org.apache.hadoop.ipc.Server: IPC Server
    listener on 9000: readAndProcess threw exception java.io.IOException: Unable
    to read authentication method. Count of bytes read: 0
    java.io.IOException: Unable to read authentication method
    at
    org.apache.hadoop.ipc.Server$Connection.readAndProcess(Server.java:1079)
    at org.apache.hadoop.ipc.Server$Listener.doRead(Server.java:525)
    at
    org.apache.hadoop.ipc.Server$Listener$Reader.run(Server.java:332)
    at
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:636)


    And i want to query dfs, got this message:

    [hadoop@HadoopNameSlave conf]$ /usr/local/hadoop/bin/hadoop fs -lsr
    hdfs://HadoopNameVIP:9000/
    10/10/14 16:57:08 INFO security.Groups: Group mapping
    impl=org.apache.hadoop.security.ShellBasedUnixGroupsMapping;
    cacheTimeout=300000
    10/10/14 16:57:09 WARN conf.Configuration: mapred.task.id is deprecated.
    Instead, use mapreduce.task.attempt.id

    Who can tell me what problem for these? is it the config issue?

    Thanks & Regards,
    Singo
  • Narendra at Oct 18, 2010 at 6:22 am
    Hi Singo,

    Can you share how you resolved the first issue?

    Regards,
    Narendra
    On Fri, Oct 15, 2010 at 1:13 PM, SingoWong wrote:

    Hi,

    The first issue was sloved, the second warring message still existing...

    On Thu, Oct 14, 2010 at 5:03 PM, SingoWong wrote:

    Hi,

    I got some question after deploy hadoop-0.21.0 need to help.
    There is a new deploy not update, and i execute start-hdfs.sh,
    start-mapred.sh, got the message in the log file below:

    2010-10-14 16:59:55,354 INFO org.apache.hadoop.ipc.Server: IPC Server
    listener on 9000: readAndProcess threw exception java.io.IOException: Unable
    to read authentication method. Count of bytes read: 0
    java.io.IOException: Unable to read authentication method
    at
    org.apache.hadoop.ipc.Server$Connection.readAndProcess(Server.java:1079)
    at org.apache.hadoop.ipc.Server$Listener.doRead(Server.java:525)
    at
    org.apache.hadoop.ipc.Server$Listener$Reader.run(Server.java:332)
    at
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:636)


    And i want to query dfs, got this message:

    [hadoop@HadoopNameSlave conf]$ /usr/local/hadoop/bin/hadoop fs -lsr
    hdfs://HadoopNameVIP:9000/
    10/10/14 16:57:08 INFO security.Groups: Group mapping
    impl=org.apache.hadoop.security.ShellBasedUnixGroupsMapping;
    cacheTimeout=300000
    10/10/14 16:57:09 WARN conf.Configuration: mapred.task.id is deprecated.
    Instead, use mapreduce.task.attempt.id

    Who can tell me what problem for these? is it the config issue?

    Thanks & Regards,
    Singo

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postedOct 14, '10 at 9:04a
activeOct 18, '10 at 6:22a
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