plz send the answer to me for this query
On Tue, Nov 12, 2013 at 2:52 AM, unmesha sreeveni <unmeshab...@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* > > >
