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From unmesha sreeveni <unmeshab...@gmail.com>
Subject Re: LeaseExpiredException : Lease mismatch in Hadoop mapReduce| How to solve?
Date Wed, 13 Nov 2013 03:55:12 GMT
:) Ok
Why u also experienced the same?


On Tue, Nov 12, 2013 at 5:14 PM, chandu banavaram <
chandu.banavaram@gmail.com> wrote:

> plz send the answer to me  for this query
>
>
> On Tue, Nov 12, 2013 at 2:52 AM, unmesha sreeveni <unmeshabiju@gmail.com>wrote:
>
>> While running job with 90 Mb file i am getting LeaseExpiredException
>>
>> 13/11/12 15:46:41 WARN mapred.JobClient: Use GenericOptionsParser for
>> parsing the arguments. Applications should implement Tool for the same.
>> 13/11/12 15:46:42 INFO input.FileInputFormat: Total input paths to
>> process : 1
>> 13/11/12 15:46:43 INFO mapred.JobClient: Running job:
>> job_201310301645_25033
>>  13/11/12 15:46:44 INFO mapred.JobClient:  map 0% reduce 0%
>> 13/11/12 15:46:56 INFO mapred.JobClient: Task Id :
>> attempt_201310301645_25033_m_000000_0, Status : FAILED
>> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException):
>> Lease mismatch on /user/hdfs/in/map owned by
>> DFSClient_NONMAPREDUCE_-1622335545_1 but is accessed by
>> DFSClient_NONMAPREDUCE_-1561990512_1
>>  at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:2459)
>> at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:2437)
>>  at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.completeFileInternal(FSNamesystem.java:2503)
>> at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.completeFile(FSNamesystem.java:2480)
>>  at
>> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.complete(NameNodeRpcServer.java:556)
>> at
>> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.complete(ClientNamenodeProtocolServerSideTranslatorPB.java:337)
>>  at
>> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:44958)
>>  at org.
>> attempt_201310301645_25033_m_000000_0: SLF4J: Class path contains
>> multiple SLF4J bindings.
>> attempt_201310301645_25033_m_000000_0: SLF4J: Found binding in
>> [jar:file:/usr/lib/zookeeper/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
>> attempt_201310301645_25033_m_000000_0: SLF4J: Found binding in
>> [jar:file:/tmp/hadoop-mapred/mapred/local/taskTracker/hdfs/jobcache/job_201310301645_25033/jars/job.jar!/org/slf4j/impl/StaticLoggerBinder.class]
>> attempt_201310301645_25033_m_000000_0: SLF4J: See
>> http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
>>  13/11/12 15:47:02 INFO mapred.JobClient: Task Id :
>> attempt_201310301645_25033_m_000000_1, Status : FAILED
>> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException):
>> Lease mismatch on /user/hdfs/in/map owned by
>> DFSClient_NONMAPREDUCE_-1622335545_1 but is accessed by
>> DFSClient_NONMAPREDUCE_-1662926329_1
>>  at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:2459)
>> at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.analyzeFileState(FSNamesystem.java:2262)
>>  at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2175)
>> at
>> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:501)
>>  at
>> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:299)
>>  at
>> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:44954)
>>  at
>> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java
>> attempt_201310301645_25033_m_000000_1: SLF4J: Class path contains
>> multiple SLF4J bindings.
>> attempt_201310301645_25033_m_000000_1: SLF4J: Found binding in
>> [jar:file:/usr/lib/zookeeper/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
>> attempt_201310301645_25033_m_000000_1: SLF4J: Found binding in
>> [jar:file:/tmp/hadoop-mapred/mapred/local/taskTracker/hdfs/jobcache/job_201310301645_25033/jars/job.jar!/org/slf4j/impl/StaticLoggerBinder.class]
>> attempt_201310301645_25033_m_000000_1: SLF4J: See
>> http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
>> attempt_201310301645_25033_m_000000_1: log4j:WARN No appenders could be
>> found for logger (org.apache.hadoop.hdfs.DFSClient).
>> attempt_201310301645_25033_m_000000_1: log4j:WARN Please initialize the
>> log4j system properly.
>> attempt_201310301645_25033_m_000000_1: log4j:WARN See
>> http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
>> 13/11/12 15:47:10 INFO mapred.JobClient: Task Id :
>> attempt_201310301645_25033_m_000001_0, Status : FAILED
>> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException):
>> No lease on /user/hdfs/in/map: File is not open for writing. Holder
>> DFSClient_NONMAPREDUCE_-1622335545_1 does not have any open files.
>>  at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:2452)
>> at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:2437)
>>  at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.completeFileInternal(FSNamesystem.java:2503)
>> at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.completeFile(FSNamesystem.java:2480)
>>  at
>> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.complete(NameNodeRpcServer.java:556)
>> at
>> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.complete(ClientNamenodeProtocolServerSideTranslatorPB.java:337)
>>  at
>> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:44958)
>>
>> Why is it so?
>> My mapper code is
>>
>> public void map(Object key, Text value, Context context)
>> throws IOException, InterruptedException {
>>  Configuration conf = new Configuration();
>> FileSystem fs = FileSystem.get(conf);
>>
>>  Path inputfile = new Path("in/map");
>>  BufferedWriter getdatabuffer = new BufferedWriter(new
>> OutputStreamWriter(fs.create(inputfile)));
>>    getdatabuffer.write(value.toString());
>>    getdatabuffer.close();
>> Path Attribute = new Path("in/Attribute");
>>     int row =0;
>>         BufferedReader read = new BufferedReader(new
>> InputStreamReader(fs.open(inputfile)));
>>         String str = null;
>>         while((str = read.readLine())!=null){
>>
>>         row++; //total row count
>>         StringTokenizer st =new StringTokenizer(str," ");
>>         col = st.countTokens();
>>       }
>>         read.close();
>> ...........
>> ...........
>> .............
>> ............
>> Further computation is based on the above "map" file.
>>
>> Why this happens?
>> I think it is unable to write into in/map for several times.
>> How to get rid of this?
>> *Any Suggestions?*
>>
>> --
>> *Thanks & Regards*
>>
>> Unmesha Sreeveni U.B
>>
>> *Junior Developer*
>>
>>
>>
>


-- 
*Thanks & Regards*

Unmesha Sreeveni U.B

*Junior Developer*

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