Thanks. I have tried with sudo command and command executed successfully. But nothing is captured.
hduser@ubuntu:~/Downloads$ sudo tcpdump port 13562 [sudo] password for hduser: tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes I am running the mapreduce program and this is the output. hduser@ubuntu:~/Downloads$ hadoop jar chiu-wordcount2.jar WordCount /user/hduser/getty/gettysburg.txt /user/hduser/getty/out8 Warning: $HADOOP_HOME is deprecated. 13/12/08 10:43:47 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments. Applications should implement Tool for the same. 13/12/08 10:43:47 INFO input.FileInputFormat: Total input paths to process : 1 13/12/08 10:43:47 INFO util.NativeCodeLoader: Loaded the native-hadoop library 13/12/08 10:43:47 WARN snappy.LoadSnappy: Snappy native library not loaded 13/12/08 10:43:48 INFO mapred.JobClient: Running job: job_201312081040_0001 13/12/08 10:43:49 INFO mapred.JobClient: map 0% reduce 0% 13/12/08 10:43:54 INFO mapred.JobClient: map 100% reduce 0% 13/12/08 10:44:02 INFO mapred.JobClient: map 100% reduce 33% 13/12/08 10:44:03 INFO mapred.JobClient: map 100% reduce 100% 13/12/08 10:44:04 INFO mapred.JobClient: Job complete: job_201312081040_0001 13/12/08 10:44:04 INFO mapred.JobClient: Counters: 29 13/12/08 10:44:04 INFO mapred.JobClient: Job Counters 13/12/08 10:44:04 INFO mapred.JobClient: Launched reduce tasks=1 13/12/08 10:44:04 INFO mapred.JobClient: SLOTS_MILLIS_MAPS=5478 13/12/08 10:44:04 INFO mapred.JobClient: Total time spent by all reduces waiting after reserving slots (ms)=0 13/12/08 10:44:04 INFO mapred.JobClient: Total time spent by all maps waiting after reserving slots (ms)=0 13/12/08 10:44:04 INFO mapred.JobClient: Launched map tasks=1 13/12/08 10:44:04 INFO mapred.JobClient: Data-local map tasks=1 13/12/08 10:44:04 INFO mapred.JobClient: SLOTS_MILLIS_REDUCES=8804 13/12/08 10:44:04 INFO mapred.JobClient: File Output Format Counters 13/12/08 10:44:04 INFO mapred.JobClient: Bytes Written=1106 13/12/08 10:44:04 INFO mapred.JobClient: FileSystemCounters 13/12/08 10:44:04 INFO mapred.JobClient: FILE_BYTES_READ=3059 13/12/08 10:44:04 INFO mapred.JobClient: HDFS_BYTES_READ=1606 13/12/08 10:44:04 INFO mapred.JobClient: FILE_BYTES_WRITTEN=108770 13/12/08 10:44:04 INFO mapred.JobClient: HDFS_BYTES_WRITTEN=1106 13/12/08 10:44:04 INFO mapred.JobClient: File Input Format Counters 13/12/08 10:44:04 INFO mapred.JobClient: Bytes Read=1486 13/12/08 10:44:04 INFO mapred.JobClient: Map-Reduce Framework 13/12/08 10:44:04 INFO mapred.JobClient: Map output materialized bytes=3059 13/12/08 10:44:04 INFO mapred.JobClient: Map input records=6 13/12/08 10:44:04 INFO mapred.JobClient: Reduce shuffle bytes=3059 13/12/08 10:44:04 INFO mapred.JobClient: Spilled Records=544 13/12/08 10:44:04 INFO mapred.JobClient: Map output bytes=2509 13/12/08 10:44:04 INFO mapred.JobClient: Total committed heap usage (bytes)=131600384 13/12/08 10:44:04 INFO mapred.JobClient: CPU time spent (ms)=1010 13/12/08 10:44:04 INFO mapred.JobClient: Combine input records=0 13/12/08 10:44:04 INFO mapred.JobClient: SPLIT_RAW_BYTES=120 13/12/08 10:44:04 INFO mapred.JobClient: Reduce input records=272 13/12/08 10:44:04 INFO mapred.JobClient: Reduce input groups=138 13/12/08 10:44:04 INFO mapred.JobClient: Combine output records=0 13/12/08 10:44:04 INFO mapred.JobClient: Physical memory (bytes) snapshot=182116352 13/12/08 10:44:04 INFO mapred.JobClient: Reduce output records=138 13/12/08 10:44:04 INFO mapred.JobClient: Virtual memory (bytes) snapshot=696483840 13/12/08 10:44:04 INFO mapred.JobClient: Map output records=272 hduser@ubuntu:~/Downloads$ mapred-site.xml file is given below. <?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <!-- Put site-specific property overrides in this file. --> <configuration> <property> <name>mapred.job.tracker</name> <value>localhost:54311</value> <description>The host and port that the MapReduce job tracker runs at. If "local", then jobs are run in-process as a single map and reduce task. </description> </property> <property> <name>mapreduce.shuffle.port</name> <value>localhost:13562</value> <description>To Monitor traffic on this port </description> </property> </configuration> I tried to run again after changing the port number to 54382 still no output. Can anybody tell me why I am not able to monitor traffic? Thanks in advance. Thanks & Regards Abdul Navaz On Fri, Dec 6, 2013 at 12:39 PM, Lars Nilsson <[email protected]> wrote: > On Dec 6, 2013 11:08 AM, "navaz" <[email protected]> wrote: > > I have tried tcpdump using "tcpdump port 13562" but not succeeded. Could > you please tell me am i following the step correctly. > > > > hduser@ubuntu:~/Downloads$ tcpdump port 13562 > > tcpdump: no suitable device found > > You are probably missing root privileges. Try sudo if you have it on the > machine in question, otherwise ask your sysadmin. > > Lars Nilsson > -- *Abdul Navaz* *Masters in Network Communications* *University of Houston* *Houston, TX - 77204-4020* *Ph - 281-685-0388* *[email protected]* <[email protected]>
