hadoop-mapreduce-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From chandu banavaram <chandu.banava...@gmail.com>
Subject Re: LeaseExpiredException : Lease mismatch in Hadoop mapReduce| How to solve?
Date Tue, 12 Nov 2013 11:44:42 GMT
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*
>
>
>

Mime
View raw message