Seems to be this is issue, which is logged..Please check following jira for same....Hope you also facing same issue...
https://issues.apache.org/jira/browse/HDFS-4929 Thanks & Regards Brahma Reddy Battula ________________________________ From: Lixiang Ao [aolixi...@gmail.com] Sent: Tuesday, March 18, 2014 10:34 AM To: user@hadoop.apache.org Subject: Re: Benchmark Failure the version is release 2.2.0 2014年3月18日 上午12:26于 "Lixiang Ao" <aolixi...@gmail.com<mailto:aolixi...@gmail.com>>写道： Hi all, I'm running jobclient tests(on single node), other tests like TestDFSIO, mrbench succeed except nnbench. I got a lot of Exceptions but without any explanation(see below). Could anyone tell me what might went wrong? Thanks! 14/03/17 23:54:22 INFO hdfs.NNBench: Waiting in barrier for: 112819 ms 14/03/17 23:54:23 INFO mapreduce.Job: Job job_local2133868569_0001 running in uber mode : false 14/03/17 23:54:23 INFO mapreduce.Job: map 0% reduce 0% 14/03/17 23:54:28 INFO mapred.LocalJobRunner: hdfs://0.0.0.0:9000/benchmarks/NNBench-aolx-PC/control/NNBench_Controlfile_10:0+125<http://0.0.0.0:9000/benchmarks/NNBench-aolx-PC/control/NNBench_Controlfile_10:0+125> > map 14/03/17 23:54:29 INFO mapreduce.Job: map 6% reduce 0% 14/03/17 23:56:15 INFO hdfs.NNBench: Exception recorded in op: Create/Write/Close 14/03/17 23:56:15 INFO hdfs.NNBench: Exception recorded in op: Create/Write/Close 14/03/17 23:56:15 INFO hdfs.NNBench: Exception recorded in op: Create/Write/Close 14/03/17 23:56:15 INFO hdfs.NNBench: Exception recorded in op: Create/Write/Close 14/03/17 23:56:15 INFO hdfs.NNBench: Exception recorded in op: Create/Write/Close 14/03/17 23:56:15 INFO hdfs.NNBench: Exception recorded in op: Create/Write/Close 14/03/17 23:56:15 INFO hdfs.NNBench: Exception recorded in op: Create/Write/Close 14/03/17 23:56:15 INFO hdfs.NNBench: Exception recorded in op: Create/Write/Close (1000 Exceptions) . . . results: File System Counters FILE: Number of bytes read=18769411 FILE: Number of bytes written=21398315 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 HDFS: Number of bytes read=11185 HDFS: Number of bytes written=19540 HDFS: Number of read operations=325 HDFS: Number of large read operations=0 HDFS: Number of write operations=13210 Map-Reduce Framework Map input records=12 Map output records=95 Map output bytes=1829 Map output materialized bytes=2091 Input split bytes=1538 Combine input records=0 Combine output records=0 Reduce input groups=8 Reduce shuffle bytes=0 Reduce input records=95 Reduce output records=8 Spilled Records=214 Shuffled Maps =0 Failed Shuffles=0 Merged Map outputs=0 GC time elapsed (ms)=211 CPU time spent (ms)=0 Physical memory (bytes) snapshot=0 Virtual memory (bytes) snapshot=0 Total committed heap usage (bytes)=4401004544 File Input Format Counters Bytes Read=1490 File Output Format Counters Bytes Written=170 14/03/17 23:56:18 INFO hdfs.NNBench: -------------- NNBench -------------- : 14/03/17 23:56:18 INFO hdfs.NNBench: Version: NameNode Benchmark 0.4 14/03/17 23:56:18 INFO hdfs.NNBench: Date & time: 2014-03-17 23:56:18,619 14/03/17 23:56:18 INFO hdfs.NNBench: 14/03/17 23:56:18 INFO hdfs.NNBench: Test Operation: create_write 14/03/17 23:56:18 INFO hdfs.NNBench: Start time: 2014-03-17 23:56:15,521 14/03/17 23:56:18 INFO hdfs.NNBench: Maps to run: 12 14/03/17 23:56:18 INFO hdfs.NNBench: Reduces to run: 6 14/03/17 23:56:18 INFO hdfs.NNBench: Block Size (bytes): 1 14/03/17 23:56:18 INFO hdfs.NNBench: Bytes to write: 0 14/03/17 23:56:18 INFO hdfs.NNBench: Bytes per checksum: 1 14/03/17 23:56:18 INFO hdfs.NNBench: Number of files: 1000 14/03/17 23:56:18 INFO hdfs.NNBench: Replication factor: 3 14/03/17 23:56:18 INFO hdfs.NNBench: Successful file operations: 0 14/03/17 23:56:18 INFO hdfs.NNBench: 14/03/17 23:56:18 INFO hdfs.NNBench: # maps that missed the barrier: 11 14/03/17 23:56:18 INFO hdfs.NNBench: # exceptions: 1000 14/03/17 23:56:18 INFO hdfs.NNBench: 14/03/17 23:56:18 INFO hdfs.NNBench: TPS: Create/Write/Close: 0 14/03/17 23:56:18 INFO hdfs.NNBench: Avg exec time (ms): Create/Write/Close: Infinity 14/03/17 23:56:18 INFO hdfs.NNBench: Avg Lat (ms): Create/Write: NaN 14/03/17 23:56:18 INFO hdfs.NNBench: Avg Lat (ms): Close: NaN 14/03/17 23:56:18 INFO hdfs.NNBench: 14/03/17 23:56:18 INFO hdfs.NNBench: RAW DATA: AL Total #1: 0 14/03/17 23:56:18 INFO hdfs.NNBench: RAW DATA: AL Total #2: 0 14/03/17 23:56:18 INFO hdfs.NNBench: RAW DATA: TPS Total (ms): 1131 14/03/17 23:56:18 INFO hdfs.NNBench: RAW DATA: Longest Map Time (ms): 1.395071776653E12 14/03/17 23:56:18 INFO hdfs.NNBench: RAW DATA: Late maps: 11 14/03/17 23:56:18 INFO hdfs.NNBench: RAW DATA: # of exceptions: 1000 14/03/17 23:56:18 INFO hdfs.NNBench:
