Hi, 1) Thank you for this. 2) Here are the images. I will look into the log files of PI example
*Result of JPS command on slave* http://s17.postimg.org/gpwe2bbfj/Screen_Shot_2015_06_22_at_7_23_31_PM.png *Result of JPS command on Master* http://s14.postimg.org/s9922em5p/Screen_Shot_2015_06_22_at_7_23_42_PM.png 3) In my current case, I do not have any input submitted to the job. During run time, I directly fetch data from HDFS. So, I am looking for something like BSPJob.set*Max*NumBspTask(). Regards, Behroz On Tue, Jun 23, 2015 at 12:57 AM, Edward J. Yoon <[email protected]> wrote: > Hello, > > 1) You can get the filesystem URI from a configuration using > "FileSystem fs = FileSystem.get(conf);". Of course, the fs.defaultFS > property should be in hama-site.xml > > <property> > <name>fs.defaultFS</name> > <value>hdfs://host1.mydomain.com:9000/</value> > <description> > The name of the default file system. Either the literal string > "local" or a host:port for HDFS. > </description> > </property> > > 2) The 'bsp.tasks.maximum' is the number of tasks per node. It looks > cluster configuration issue. Please run Pi example and look at the > logs for more details. NOTE: you can not attach the images to mailing > list so I can't see it. > > 3) You can use the BSPJob.setNumBspTask(int) method. If input is > provided, the number of BSP tasks is basically driven by the number of > DFS blocks. I'll fix it to be more flexible on HAMA-956. > > Thanks! > > > On Tue, Jun 23, 2015 at 2:33 AM, Behroz Sikander <[email protected]> > wrote: > > Hi, > > Recently, I moved from a single machine setup to a 2 machine setup. I was > > successfully able to run my job that uses the HDFS to get data. I have 3 > > trivial questions > > > > 1- To access HDFS, I have to manually give the IP address of server > running > > HDFS. I thought that Hama will automatically pick from the configurations > > but it does not. I am probably doing something wrong. Right now my code > work > > by using the following. > > > > FileSystem fs = FileSystem.get(new URI("hdfs://server_ip:port/"), conf); > > > > 2- On my master server, when I start hama it automatically starts hama in > > the slave machine (all good). Both master and slave are set as > groomservers. > > This means that I have 2 servers to run my job which means that I can > open > > more BSPPeerChild processes. And if I submit my jar with 3 bsp tasks then > > everything works fine. But when I move to 4 tasks, Hama freezes. Here is > the > > result of JPS command on slave. > > > > > > Result of JPS command on Master > > > > > > > > You can see that it is only opening tasks on slaves but not on master. > > > > Note: I tried to change the bsp.tasks.maximum property in > hama-default.xml > > to 4 but still same result. > > > > 3- I want my cluster to open as many BSPPeerChild processes as possible. > Is > > there any setting that can I do to achieve that ? Or hama picks up the > > values from hama-default.xml to open tasks ? > > > > > > Regards, > > > > Behroz Sikander > > > > -- > Best Regards, Edward J. Yoon >
