Hi, Thomas. If you want to update the information, please also check and update the corresponding wiki web page here http://wiki.apache.org/hama/BSPModel
Walker. 2012/9/17 Thomas Jungblut <[email protected]> > Hi, > > types in Java are not optional and the last is the Message type. I will > edit this in our internal doc. > Thanks for finding ;) > > 2012/9/16 顾荣 <[email protected]> > > > Thanks, Yuesheng. > > However, I also see the declaration "BSPPeer<LongWritable, Text, KEYOUT, > > VALUEOUT>" in page 15 and "BSPPeer<NullWritable, NullWritable, Text, > > DoubleWritable>" in page 17. > > Is the message type optional？ and what's it used for? > > > > Walker. > > > > > > > > 2012/9/16 Yuesheng Hu <[email protected]> > > > > > I think there is no error, the fifth parameter is message type. > > > 在 2012-9-16 晚上11:35，"顾荣" <[email protected]>写道： > > > > > > > Hi, Suraj. > > > > > > > > I am reading the "BSP Programming > > > > Model< > > > > > > > > > > https://issues.apache.org/jira/secure/attachment/12528218/ApacheHamaBSPProgrammingmodel.pdf > > > > >" > > > > pdf in Hama wiki you introduced to me. > > > > I wonder there is a type error in this pdf. > > > > See the "BSPPeer<NullWritable, NullWritable, Text, > > > > DoubleWritable,DoubleWritable> peer" in the code block in page 16. Is > > it > > > > should be "BSPPeer<NullWritable, NullWritable, Text, DoubleWritable> > > > peer" > > > > ? > > > > > > > > BTW, this pdf file is a wonderful guide for me,thanks . > > > > > > > > Walker. > > > > > > > > 2012/9/13 顾荣 <[email protected]> > > > > > > > > > Hi, Suraj. > > > > > > > > > > Thanks so much. I am just looking for the introdution material of > the > > > > > programming model and the execution mechanism in hama.You guys are > so > > > > kind. > > > > > > > > > > Regards > > > > > Walker. > > > > > > > > > > > > > > > 2012/9/13 Suraj Menon <[email protected]> > > > > > > > > > >> Sorry Walker I am a little late in responding .. For further help > > you > > > > can > > > > >> refer the PDFs here - http://wiki.apache.org/hama/GettingStarted > > > > >> It has installation guide and introduction to programming model. I > > am > > > in > > > > >> the process of converting it to html ebook. > > > > >> The document contents are still evolving but the installation > guide > > > has > > > > >> been just enough to start on Hama. > > > > >> > > > > >> Good luck. > > > > >> > > > > >> -Suraj > > > > >> > > > > >> On Wed, Sep 12, 2012 at 9:17 PM, Edward J. Yoon < > > > [email protected] > > > > >> >wrote: > > > > >> > > > > >> > No problem, walker. Thanks a lot for your feedbacks. :-) > > > > >> > > > > > >> > On Wed, Sep 12, 2012 at 11:11 PM, 顾荣 <[email protected]> > > > wrote: > > > > >> > > Hi, Thomas and Edward. > > > > >> > > > > > > >> > > I am sry, I did not copy the Hadop jar into the Hama lib > folder. > > > So, > > > > >> > there > > > > >> > > comes a problem when I use hadoop 0.20.2 for Hama 0.5 at > first. > > > > When I > > > > >> > use > > > > >> > > hadoop 1.0.3, I did not replace the hadoop jar in Hama lib > > either. > > > > >> > However, > > > > >> > > by default, Hama 0.5 contains hadoop-core-1.0.0.jar in its > lib. > > > > Maybe > > > > >> > > because hadoop 1.0.0 do not have too much difference with > hadoop > > > > >> 1.0.3 in > > > > >> > > communication protocol, so I passed the pi example > fortunately. > > > > >> > > > > > > >> > > By the way, I have tested that the Hama 0.5 can really works > > well > > > > >> with > > > > >> > > Hadoop 0.20.2 after replace the hadoop jar files in > > > ${HAMA_HOME}/lib > > > > >> > > folder. > > > > >> > > It makes sense. When starting, the Hama bspmaster needs to > > > > communicate > > > > >> > the > > > > >> > > Namenode, thus the hadoop jar it used needs match the version > > of > > > > the > > > > >> > > running HDFS. That's why it shows the error message such as > can > > > not > > > > >> > connect > > > > >> > > the namenode and RPC failed and so on in the log. > > > > >> > > > > > > >> > > During installation, I just followed the this guide > > > > >> > > http://hama.apache.org/getting_started_with_hama.html and > > missed > > > > its > > > > >> > link > > > > >> > > page http://wiki.apache.org/hama/CompatibilityTable. Sorry > > again. > > > > >> > > > > > > >> > > Regards. > > > > >> > > Walker. > > > > >> > > > > > > >> > > 2012/9/12 Thomas Jungblut <[email protected]> > > > > >> > > > > > > >> > >> Hey walker, > > > > >> > >> > > > > >> > >> did you copy the Hadoop jar into the Hama lib folder? > > Otherwise I > > > > >> can't > > > > >> > >> explain this. > > > > >> > >> > > > > >> > >> 2012/9/12 Edward J. Yoon <[email protected]> > > > > >> > >> > > > > >> > >> > I'm use 0.20.2 and 0.20.2-cdh versions. There's no problem. > > > > >> > >> > > > > > >> > >> > Sent from my iPad > > > > >> > >> > > > > > >> > >> > On Sep 12, 2012, at 4:59 PM, Thomas Jungblut < > > > > >> > [email protected]> > > > > >> > >> > wrote: > > > > >> > >> > > > > > >> > >> > > Anyone tested the compatibility to Hadoop 20.2 with Hama > > 0.5? > > > > >> > >> > > [1] says it is compatible. > > > > >> > >> > > > > > > >> > >> > > [1] http://wiki.apache.org/hama/CompatibilityTable > > > > >> > >> > > > > > > >> > >> > > 2012/9/12 顾荣 <[email protected]> > > > > >> > >> > > > > > > >> > >> > >> Okay, I'll try Hadoop 1.0.3 with Hama 0.50. > > > > >> > >> > >> Thanks Thomas. I can't wait to explore the Hama world > now. > > > > >> > >> > >> > > > > >> > >> > >> walker. > > > > >> > >> > >> > > > > >> > >> > >> 2012/9/12 Thomas Jungblut <[email protected]> > > > > >> > >> > >> > > > > >> > >> > >>> oh okay. I'm not sure if 0.5.0 is really compatible to > > > 20.2, > > > > >> > >> > personally I > > > > >> > >> > >>> have installed 1.0.3 and it works fine. > > > > >> > >> > >>> Sorry to let you install all the different versions. > > > > >> > >> > >>> > > > > >> > >> > >>> 2012/9/12 顾荣 <[email protected]> > > > > >> > >> > >>> > > > > >> > >> > >>>> Thanks Thomas. The HDFS works well. I even put a file > > from > > > > >> local > > > > >> > to > > > > >> > >> it > > > > >> > >> > >>>> successfully. It absolutely left the safemode. The > > > namenode > > > > >> > starting > > > > >> > >> > >> log > > > > >> > >> > >>> is > > > > >> > >> > >>>> as below: > > > > >> > >> > >>>> > > > > >> > >> > >>>> 2012-09-12 15:10:39,002 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.NameNode: > > > > STARTUP_MSG: > > > > >> > >> > >>>> > > > > /************************************************************ > > > > >> > >> > >>>> STARTUP_MSG: Starting NameNode > > > > >> > >> > >>>> STARTUP_MSG: host = slave021/192.168.1.21 > > > > >> > >> > >>>> STARTUP_MSG: args = [] > > > > >> > >> > >>>> STARTUP_MSG: version = 0.20.2 > > > > >> > >> > >>>> STARTUP_MSG: build = > > > > >> > >> > >>>> > > > > >> > >> > > > > >> > > https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20-r > > > > >> > >> > >>>> 911707; compiled by 'chrisdo' on Fri Feb 19 08:07:34 > UTC > > > > 2010 > > > > >> > >> > >>>> > > > > ************************************************************/ > > > > >> > >> > >>>> 2012-09-12 15:10:39,092 INFO > > > > >> > >> org.apache.hadoop.ipc.metrics.RpcMetrics: > > > > >> > >> > >>>> Initializing RPC Metrics with hostName=NameNode, > > > port=54310 > > > > >> > >> > >>>> 2012-09-12 15:10:39,098 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.NameNode: > > Namenode > > > up > > > > >> at: > > > > >> > >> > >>> slave021/ > > > > >> > >> > >>>> 192.168.1.21:54310 > > > > >> > >> > >>>> 2012-09-12 15:10:39,100 INFO > > > > >> > >> org.apache.hadoop.metrics.jvm.JvmMetrics: > > > > >> > >> > >>>> Initializing JVM Metrics with processName=NameNode, > > > > >> > sessionId=null > > > > >> > >> > >>>> 2012-09-12 15:10:39,101 INFO > > > > >> > >> > >>>> > > > > >> org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics: > > > > >> > >> > >>>> Initializing NameNodeMeterics using context > > > > >> > >> > >>>> object:org.apache.hadoop.metrics.spi.NullContext > > > > >> > >> > >>>> 2012-09-12 15:10:39,143 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > > > >> > >> > >>>> fsOwner=hadoop,hadoop_user,wheel > > > > >> > >> > >>>> 2012-09-12 15:10:39,144 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > > > >> > >> > >>> supergroup=supergroup > > > > >> > >> > >>>> 2012-09-12 15:10:39,144 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > > > >> > >> > >>>> isPermissionEnabled=true > > > > >> > >> > >>>> 2012-09-12 15:10:39,150 INFO > > > > >> > >> > >>>> > > > > >> > > > org.apache.hadoop.hdfs.server.namenode.metrics.FSNamesystemMetrics: > > > > >> > >> > >>>> Initializing FSNamesystemMetrics using context > > > > >> > >> > >>>> object:org.apache.hadoop.metrics.spi.NullContext > > > > >> > >> > >>>> 2012-09-12 15:10:39,151 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > > > >> Registered > > > > >> > >> > >>>> FSNamesystemStatusMBean > > > > >> > >> > >>>> 2012-09-12 15:10:39,177 INFO > > > > >> > >> > >>> org.apache.hadoop.hdfs.server.common.Storage: > > > > >> > >> > >>>> Number of files = 1 > > > > >> > >> > >>>> 2012-09-12 15:10:39,181 INFO > > > > >> > >> > >>> org.apache.hadoop.hdfs.server.common.Storage: > > > > >> > >> > >>>> Number of files under construction = 0 > > > > >> > >> > >>>> 2012-09-12 15:10:39,181 INFO > > > > >> > >> > >>> org.apache.hadoop.hdfs.server.common.Storage: > > > > >> > >> > >>>> Image file of size 96 loaded in 0 seconds. > > > > >> > >> > >>>> 2012-09-12 15:10:39,181 INFO > > > > >> > >> > >>> org.apache.hadoop.hdfs.server.common.Storage: > > > > >> > >> > >>>> Edits file > > > > >> > >> > >>>> > > > > >> > > > /home/hadoop/gurong/hadoop-0.20.2/hadoop_dir/dfs/name/current/edits > > > > >> > >> of > > > > >> > >> > >>> size > > > > >> > >> > >>>> 4 edits # 0 loaded in 0 seconds. > > > > >> > >> > >>>> 2012-09-12 15:10:39,236 INFO > > > > >> > >> > >>> org.apache.hadoop.hdfs.server.common.Storage: > > > > >> > >> > >>>> Image file of size 96 saved in 0 seconds. > > > > >> > >> > >>>> 2012-09-12 15:10:39,439 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > > > Finished > > > > >> > >> loading > > > > >> > >> > >>>> FSImage in 312 msecs > > > > >> > >> > >>>> 2012-09-12 15:10:39,441 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > Total > > > > >> > number of > > > > >> > >> > >>> blocks > > > > >> > >> > >>>> = 0 > > > > >> > >> > >>>> 2012-09-12 15:10:39,441 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > > Number > > > > of > > > > >> > >> invalid > > > > >> > >> > >>>> blocks = 0 > > > > >> > >> > >>>> 2012-09-12 15:10:39,441 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > > Number > > > > of > > > > >> > >> > >>>> under-replicated blocks = 0 > > > > >> > >> > >>>> 2012-09-12 15:10:39,441 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > > Number > > > > of > > > > >> > >> > >>>> over-replicated blocks = 0 > > > > >> > >> > >>>> 2012-09-12 15:10:39,441 INFO > > > > >> org.apache.hadoop.hdfs.StateChange: > > > > >> > >> > STATE* > > > > >> > >> > >>>> Leaving safe mode after 0 secs. > > > > >> > >> > >>>> 2012-09-12 15:10:39,441 INFO > > > > >> org.apache.hadoop.hdfs.StateChange: > > > > >> > >> > STATE* > > > > >> > >> > >>>> Network topology has 0 racks and 0 datanodes > > > > >> > >> > >>>> 2012-09-12 15:10:39,441 INFO > > > > >> org.apache.hadoop.hdfs.StateChange: > > > > >> > >> > STATE* > > > > >> > >> > >>>> UnderReplicatedBlocks has 0 blocks > > > > >> > >> > >>>> 2012-09-12 15:10:39,554 INFO org.mortbay.log: Logging > to > > > > >> > >> > >>>> org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via > > > > >> > >> > >>>> org.mortbay.log.Slf4jLog > > > > >> > >> > >>>> 2012-09-12 15:10:39,603 INFO > > > > >> org.apache.hadoop.http.HttpServer: > > > > >> > Port > > > > >> > >> > >>>> returned by > webServer.getConnectors()[0].getLocalPort() > > > > before > > > > >> > >> open() > > > > >> > >> > >> is > > > > >> > >> > >>>> -1. Opening the listener on 50070 > > > > >> > >> > >>>> 2012-09-12 15:10:39,604 INFO > > > > >> org.apache.hadoop.http.HttpServer: > > > > >> > >> > >>>> listener.getLocalPort() returned 50070 > > > > >> > >> > >>>> webServer.getConnectors()[0].getLocalPort() returned > > 50070 > > > > >> > >> > >>>> 2012-09-12 15:10:39,604 INFO > > > > >> org.apache.hadoop.http.HttpServer: > > > > >> > >> Jetty > > > > >> > >> > >>> bound > > > > >> > >> > >>>> to port 50070 > > > > >> > >> > >>>> 2012-09-12 15:10:39,604 INFO org.mortbay.log: > > jetty-6.1.14 > > > > >> > >> > >>>> 2012-09-12 15:10:48,662 INFO org.mortbay.log: Started > > > > >> > >> > >>>> [email protected]:50070 > > > > >> > >> > >>>> 2012-09-12 15:10:48,663 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.NameNode: > > > Web-server > > > > up > > > > >> > at: > > > > >> > >> > >>>> 0.0.0.0:50070 > > > > >> > >> > >>>> 2012-09-12 15:10:48,666 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> listener on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,667 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> Responder: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,668 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 0 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,668 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 1 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,668 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 2 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,668 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 3 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,668 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 4 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,669 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 5 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,669 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 6 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,669 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 7 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,669 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 8 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,669 INFO > > org.apache.hadoop.ipc.Server: > > > > IPC > > > > >> > >> Server > > > > >> > >> > >>>> handler 9 on 54310: starting > > > > >> > >> > >>>> 2012-09-12 15:10:48,700 INFO > > org.apache.hadoop.ipc.Server: > > > > >> Error > > > > >> > >> > >> register > > > > >> > >> > >>>> getProtocolVersion > > > > >> > >> > >>>> java.lang.IllegalArgumentException: Duplicate > > > > >> > >> > >>>> metricsName:getProtocolVersion > > > > >> > >> > >>>> at > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.metrics.util.MetricsRegistry.add(MetricsRegistry.java:53) > > > > >> > >> > >>>> at > > > > >> > >> > >>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.metrics.util.MetricsTimeVaryingRate.<init>(MetricsTimeVaryingRate.java:89) > > > > >> > >> > >>>> at > > > > >> > >> > >>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.metrics.util.MetricsTimeVaryingRate.<init>(MetricsTimeVaryingRate.java:99) > > > > >> > >> > >>>> at > > org.apache.hadoop.ipc.RPC$Server.call(RPC.java:523) > > > > >> > >> > >>>> at > > > > >> org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:959) > > > > >> > >> > >>>> at > > > > >> org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:955) > > > > >> > >> > >>>> at > java.security.AccessController.doPrivileged(Native > > > > >> Method) > > > > >> > >> > >>>> at > javax.security.auth.Subject.doAs(Subject.java:416) > > > > >> > >> > >>>> at > > > > >> org.apache.hadoop.ipc.Server$Handler.run(Server.java:953) > > > > >> > >> > >>>> 2012-09-12 15:11:05,298 INFO > > > > >> org.apache.hadoop.hdfs.StateChange: > > > > >> > >> > BLOCK* > > > > >> > >> > >>>> NameSystem.registerDatanode: node registration from > > > > >> > >> > >>>> 192.168.1.21:50010storage > > > > >> > >> > >>>> DS-1416037815-192.168.1.21-50010-1347433865293 > > > > >> > >> > >>>> 2012-09-12 15:11:05,300 INFO > > > > >> > org.apache.hadoop.net.NetworkTopology: > > > > >> > >> > >>> Adding > > > > >> > >> > >>>> a new node: /default-rack/192.168.1.21:50010 > > > > >> > >> > >>>> 2012-09-12 15:11:15,069 INFO > > > > >> > >> > >>>> > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit: > > > > >> > >> > >>>> ugi=webuser,webgroup ip=/192.168.1.21 > > > cmd=listStatus > > > > >> > src=/ > > > > >> > >> > >>>> dst=null perm=null > > > > >> > >> > >>>> 2012-09-12 15:12:05,034 WARN > > org.apache.hadoop.ipc.Server: > > > > >> > Incorrect > > > > >> > >> > >>> header > > > > >> > >> > >>>> or version mismatch from 192.168.1.21:56281 got > > version 4 > > > > >> > expected > > > > >> > >> > >>>> version 3 > > > > >> > >> > >>>> 2012-09-12 15:14:51,535 INFO > > > > >> > >> > >>>> > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit: > > > > >> > >> > >>>> ugi=hadoop,hadoop_user,wheel ip=/192.168.1.21 > > > > >> > cmd=listStatus > > > > >> > >> > >>>> src=/ dst=null perm=null > > > > >> > >> > >>>> 2012-09-12 15:15:10,158 INFO > > > > >> > >> > >>>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: > > > Number > > > > of > > > > >> > >> > >>>> transactions: 2 Total time for transactions(ms): > 0Number > > > of > > > > >> > >> > >> transactions > > > > >> > >> > >>>> batched in Syncs: 0 Number of syncs: 0 SyncTimes(ms): > 0 > > > > >> > >> > >>>> > > > > >> > >> > >>>> I used Hama 0.5 and hadoop 0.20.2. Has somebody test > > this > > > > >> match > > > > >> > can > > > > >> > >> > >> work > > > > >> > >> > >>>> well? > > > > >> > >> > >>>> > > > > >> > >> > >>>> thanks very much. > > > > >> > >> > >>>> > > > > >> > >> > >>>> walker > > > > >> > >> > >>>> > > > > >> > >> > >>>> 2012/9/12 Thomas Jungblut <[email protected]> > > > > >> > >> > >>>> > > > > >> > >> > >>>>> Still it says: > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>>> " 2012-09-12 14:41:16,218 ERROR > > > > >> org.apache.hama.bsp.BSPMaster: > > > > >> > >> > >> Can't > > > > >> > >> > >>>> get > > > > >> > >> > >>>>>> connection to Hadoop Namenode! " > > > > >> > >> > >>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>>> Can you verify that the namenode is not in safemode > and > > > has > > > > >> > >> correctly > > > > >> > >> > >>>>> started up? > > > > >> > >> > >>>>> Have a look into the namenode logs please! > > > > >> > >> > >>>>> > > > > >> > >> > >>>>> 2012/9/12 顾荣 <[email protected]> > > > > >> > >> > >>>>> > > > > >> > >> > >>>>>> By the way, the fs.default.name is > 192.168.1.21:54310 > > . > > > I > > > > >> > checked > > > > >> > >> > >> the > > > > >> > >> > >>>>> HDFS, > > > > >> > >> > >>>>>> it works well. I installed and ran both HDFS and > Hama > > > > using > > > > >> the > > > > >> > >> > >> same > > > > >> > >> > >>>>> linux > > > > >> > >> > >>>>>> account. > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>>> 2012/9/12 顾荣 <[email protected]> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>>>> Thanks so much, Edward. > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>>> I fellowed your suggestion and instanlled a hadoop > > > 0.20.2 > > > > >> > instead > > > > >> > >> > >>> for > > > > >> > >> > >>>>>>> Hama. However, this time when I start Hama, a fatal > > > > >> happened > > > > >> > and > > > > >> > >> > >>> the > > > > >> > >> > >>>>>>> bspmaster daemon can not start up. The > corresponding > > > > error > > > > >> > >> > >> message > > > > >> > >> > >>> in > > > > >> > >> > >>>>> the > > > > >> > >> > >>>>>>> baspmaster log file shows as below. > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>>> > > > > >> ************************************************************/ > > > > >> > >> > >>>>>>> 2012-09-12 14:40:38,238 INFO > > > > >> org.apache.hama.BSPMasterRunner: > > > > >> > >> > >>>>>> STARTUP_MSG: > > > > >> > >> > >>>>>>> > > > > >> /************************************************************ > > > > >> > >> > >>>>>>> STARTUP_MSG: Starting BSPMaster > > > > >> > >> > >>>>>>> STARTUP_MSG: host = slave021/192.168.1.21 > > > > >> > >> > >>>>>>> STARTUP_MSG: args = [] > > > > >> > >> > >>>>>>> STARTUP_MSG: version = 1.0.0 > > > > >> > >> > >>>>>>> STARTUP_MSG: build = > > > > >> > >> > >>>>>>> > > > > >> > >> > >>> > > > > >> > > > > https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.0-r > > > > >> > >> > >>>>>>> 1214675; compiled by 'hortonfo' on Fri Dec 16 > > 20:01:27 > > > > UTC > > > > >> > 2011 > > > > >> > >> > >>>>>>> > > > > >> ************************************************************/ > > > > >> > >> > >>>>>>> 2012-09-12 14:40:38,414 INFO > > > > org.apache.hama.bsp.BSPMaster: > > > > >> > RPC > > > > >> > >> > >>>>>> BSPMaster: > > > > >> > >> > >>>>>>> host slave021 port 40000 > > > > >> > >> > >>>>>>> 2012-09-12 14:40:38,502 INFO > > > > org.apache.hadoop.ipc.Server: > > > > >> > >> > >> Starting > > > > >> > >> > >>>>>>> SocketReader > > > > >> > >> > >>>>>>> 2012-09-12 14:40:38,542 INFO org.mortbay.log: > Logging > > > to > > > > >> > >> > >>>>>>> org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) > > via > > > > >> > >> > >>>>>>> org.mortbay.log.Slf4jLog > > > > >> > >> > >>>>>>> 2012-09-12 14:40:38,583 INFO > > > > >> org.apache.hama.http.HttpServer: > > > > >> > >> > >> Port > > > > >> > >> > >>>>>>> returned by > > webServer.getConnectors()[0].getLocalPort() > > > > >> before > > > > >> > >> > >>> open() > > > > >> > >> > >>>>> is > > > > >> > >> > >>>>>>> -1. Opening the listener on 40013 > > > > >> > >> > >>>>>>> 2012-09-12 14:40:38,584 INFO > > > > >> org.apache.hama.http.HttpServer: > > > > >> > >> > >>>>>>> listener.getLocalPort() returned 40013 > > > > >> > >> > >>>>>>> webServer.getConnectors()[0].getLocalPort() > returned > > > > 40013 > > > > >> > >> > >>>>>>> 2012-09-12 14:40:38,584 INFO > > > > >> org.apache.hama.http.HttpServer: > > > > >> > >> > >> Jetty > > > > >> > >> > >>>>> bound > > > > >> > >> > >>>>>>> to port 40013 > > > > >> > >> > >>>>>>> 2012-09-12 14:40:38,584 INFO org.mortbay.log: > > > > jetty-6.1.14 > > > > >> > >> > >>>>>>> 2012-09-12 14:40:38,610 INFO org.mortbay.log: > Extract > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > jar:file:/home/hadoop/hama_installs/hama-0.5.0/hama-core-0.5.0.jar!/webapp/bspmaster/ > > > > >> > >> > >>>>>>> to > > > /tmp/Jetty_slave021_40013_bspmaster____.1tzgsz/webapp > > > > >> > >> > >>>>>>> 2012-09-12 14:41:16,073 INFO org.mortbay.log: > Started > > > > >> > >> > >>>>>>> SelectChannelConnector@slave021:40013 > > > > >> > >> > >>>>>>> 2012-09-12 14:41:16,218 ERROR > > > > >> org.apache.hama.bsp.BSPMaster: > > > > >> > >> > >> Can't > > > > >> > >> > >>>> get > > > > >> > >> > >>>>>>> connection to Hadoop Namenode! > > > > >> > >> > >>>>>>> java.io.IOException: Call to /192.168.1.21:54310 > > failed > > > > on > > > > >> > local > > > > >> > >> > >>>>>>> exception: java.io.EOFException > > > > >> > >> > >>>>>>> at > > > > >> > >> > >> > > org.apache.hadoop.ipc.Client.wrapException(Client.java:1103) > > > > >> > >> > >>>>>>> at > > > org.apache.hadoop.ipc.Client.call(Client.java:1071) > > > > >> > >> > >>>>>>> at > > > > >> org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225) > > > > >> > >> > >>>>>>> at $Proxy5.getProtocolVersion(Unknown Source) > > > > >> > >> > >>>>>>> at > > org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396) > > > > >> > >> > >>>>>>> at > > org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>> > > > > >> > >> > > > > >> > > org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:119) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >> > > org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:238) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >> > > org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:203) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>> > > > > >> > >> > > > > >> > > org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1386) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>> > > > > org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>>> > > > > >> org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1404) > > > > >> > >> > >>>>>>> at > > > > >> org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254) > > > > >> > >> > >>>>>>> at > > > > >> org.apache.hadoop.fs.FileSystem.get(FileSystem.java:123) > > > > >> > >> > >>>>>>> at > > > > >> org.apache.hama.bsp.BSPMaster.<init>(BSPMaster.java:299) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>> > > > org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:454) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>> > > > org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:449) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >> > > org.apache.hama.BSPMasterRunner.run(BSPMasterRunner.java:46) > > > > >> > >> > >>>>>>> at > > > > >> > org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > > > > >> > >> > >>>>>>> at > > > > >> > org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>> > > > org.apache.hama.BSPMasterRunner.main(BSPMasterRunner.java:56) > > > > >> > >> > >>>>>>> Caused by: java.io.EOFException > > > > >> > >> > >>>>>>> at > > > > >> > java.io.DataInputStream.readInt(DataInputStream.java:392) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>> > > > > >> > >> > > > > > >> > > > > > > > org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:800) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >> > > org.apache.hadoop.ipc.Client$Connection.run(Client.java:745) > > > > >> > >> > >>>>>>> 2012-09-12 14:41:16,222 FATAL > > > > >> org.apache.hama.BSPMasterRunner: > > > > >> > >> > >>>>>>> java.lang.NullPointerException > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>> > > > > org.apache.hama.bsp.BSPMaster.getSystemDir(BSPMaster.java:862) > > > > >> > >> > >>>>>>> at > > > > >> org.apache.hama.bsp.BSPMaster.<init>(BSPMaster.java:308) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>> > > > org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:454) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>> > > > org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:449) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >> > > org.apache.hama.BSPMasterRunner.run(BSPMasterRunner.java:46) > > > > >> > >> > >>>>>>> at > > > > >> > org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > > > > >> > >> > >>>>>>> at > > > > >> > org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) > > > > >> > >> > >>>>>>> at > > > > >> > >> > >>> > > > org.apache.hama.BSPMasterRunner.main(BSPMasterRunner.java:56) > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>>> 2012-09-12 14:41:16,223 INFO > > > > >> org.apache.hama.BSPMasterRunner: > > > > >> > >> > >>>>>>> SHUTDOWN_MSG: > > > > >> > >> > >>>>>>> > > > > >> /************************************************************ > > > > >> > >> > >>>>>>> SHUTDOWN_MSG: Shutting down BSPMaster at slave021/ > > > > >> > 192.168.1.21 > > > > >> > >> > >>>>>>> > > > > >> ************************************************************/ > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>>> Would please give me some tips again? > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>>> Thanks,again. > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>>> walker > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>>> 2012/9/12 Edward J. Yoon <[email protected]> > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>>> Unfortunately we don't support Hadoop secure > version > > > yet. > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>>>> Instead of 0.20.205, Please use hadoop non-secure > > > 0.20.2 > > > > >> or > > > > >> > >> > >> 1.0.3 > > > > >> > >> > >>>>>>>> versions. > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>>>> Thanks. > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>>>> On Wed, Sep 12, 2012 at 11:25 AM, 顾荣 < > > > > >> [email protected] > > > > >> > > > > > > >> > >> > >>>> wrote: > > > > >> > >> > >>>>>>>>> Hi,all. > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>>> I set up a hama cluster of 3 nodes and start hama > > > > >> > >> > >> successfully. > > > > >> > >> > >>>>>> However, > > > > >> > >> > >>>>>>>>> when I run the pi example, the job failed with a > > very > > > > >> > strange > > > > >> > >> > >>>>> message > > > > >> > >> > >>>>>> as > > > > >> > >> > >>>>>>>>> below. > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>>> hama jar > > > > >> > >> > >>>>>> > > > > >> /home/hadoop/hama_installs/hama-0.5.0/hama-examples-0.5.0.jar > > > > >> > >> > >>>>>>>> pi > > > > >> > >> > >>>>>>>>> org.apache.hadoop.ipc.RemoteException: > > > > >> java.io.IOException: > > > > >> > >> > >>>>>>>>> java.lang.NoSuchMethodException: > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>> > > > > >> > >> > > > > >> > > > org.apache.hadoop.hdfs.protocol.ClientProtocol.create(java.lang.String, > > > > >> > >> > >>>>>>>>> org.apache.hadoop.fs.permission.FsPermission, > > > > >> > >> > >> java.lang.String, > > > > >> > >> > >>>>>> boolean, > > > > >> > >> > >>>>>>>>> boolean, short, long) > > > > >> > >> > >>>>>>>>> at java.lang.Class.getMethod(Class.java:1605) > > > > >> > >> > >>>>>>>>> at > > > > org.apache.hadoop.ipc.RPC$Server.call(RPC.java:557) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>> > > > org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>> > > > org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384) > > > > >> > >> > >>>>>>>>> at > > > > java.security.AccessController.doPrivileged(Native > > > > >> > >> > >>> Method) > > > > >> > >> > >>>>>>>>> at > > > > javax.security.auth.Subject.doAs(Subject.java:396) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>> > > org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382) > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>>> at > > > > org.apache.hadoop.ipc.Client.call(Client.java:1066) > > > > >> > >> > >>>>>>>>> at > > > > >> org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225) > > > > >> > >> > >>>>>>>>> at $Proxy2.create(Unknown Source) > > > > >> > >> > >>>>>>>>> at > > > > sun.reflect.NativeMethodAccessorImpl.invoke0(Native > > > > >> > >> > >>> Method) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > > > > >> > >> > >>>>>>>>> at > > > java.lang.reflect.Method.invoke(Method.java:616) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59) > > > > >> > >> > >>>>>>>>> at $Proxy2.create(Unknown Source) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.<init>(DFSClient.java:3245) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>> > > org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:713) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:182) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>> > > org.apache.hadoop.fs.FileSystem.create(FileSystem.java:555) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>> > > org.apache.hadoop.fs.FileSystem.create(FileSystem.java:536) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>> > > org.apache.hadoop.fs.FileSystem.create(FileSystem.java:443) > > > > >> > >> > >>>>>>>>> at > > > > >> org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:229) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>> > > > > >> > >> > > > > >> > > > org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:1195) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>> > > > > >> > >> > > > > >> > > > org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:1171) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>> > > > > >> > >> > > > > >> > > > org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:1143) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > > > > > >> > > > > > > org.apache.hama.bsp.BSPJobClient.submitJobInternal(BSPJobClient.java:349) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>> > > > > >> > > org.apache.hama.bsp.BSPJobClient.submitJob(BSPJobClient.java:294) > > > > >> > >> > >>>>>>>>> at > > > > org.apache.hama.bsp.BSPJob.submit(BSPJob.java:218) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>> > > > > org.apache.hama.bsp.BSPJob.waitForCompletion(BSPJob.java:225) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>> > > > > >> org.apache.hama.examples.PiEstimator.main(PiEstimator.java:139) > > > > >> > >> > >>>>>>>>> at > > > > sun.reflect.NativeMethodAccessorImpl.invoke0(Native > > > > >> > >> > >>> Method) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > > > > >> > >> > >>>>>>>>> at > > > java.lang.reflect.Method.invoke(Method.java:616) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>> > > > > >> > > > org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>> > > > > >> > >> > >> > > > > >> org.apache.hama.examples.ExampleDriver.main(ExampleDriver.java:39) > > > > >> > >> > >>>>>>>>> at > > > > sun.reflect.NativeMethodAccessorImpl.invoke0(Native > > > > >> > >> > >>> Method) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > > > > >> > >> > >>>>>>>>> at > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > > > > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > > > > >> > >> > >>>>>>>>> at > > > java.lang.reflect.Method.invoke(Method.java:616) > > > > >> > >> > >>>>>>>>> at > > > org.apache.hama.util.RunJar.main(RunJar.java:147) > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>>> My hama verison is 0.5 and hadoop version is > > > 0.20.205. > > > > >> This > > > > >> > >> > >>> error > > > > >> > >> > >>>>>> seems > > > > >> > >> > >>>>>>>> to > > > > >> > >> > >>>>>>>>> comes from the > > > > >> > >> > >>>>> > "org.apache.hadoop.hdfs.protocol.ClientProtocol.create" > > > > >> > >> > >>>>>>>>> method, this is a normal method. I am kind of > > > > confused... > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>>> Thanks in advance. > > > > >> > >> > >>>>>>>>> > > > > >> > >> > >>>>>>>>> walker > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>>>> -- > > > > >> > >> > >>>>>>>> Best Regards, Edward J. Yoon > > > > >> > >> > >>>>>>>> @eddieyoon > > > > >> > >> > >>>>>>>> > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>>> > > > > >> > >> > >>>>>> > > > > >> > >> > >>>>> > > > > >> > >> > >>>> > > > > >> > >> > >>> > > > > >> > >> > >> > > > > >> > >> > > > > > >> > >> > > > > >> > > > > > >> > > > > > >> > > > > > >> > -- > > > > >> > Best Regards, Edward J. Yoon > > > > >> > @eddieyoon > > > > >> > > > > > >> > > > > > > > > > > > > > > > > > > > >
