Hello all, This is in follow up to *1. How many workers can I have? * So I understand that per-worker parallelism is achieved using compute threads. Hence, giraph.numComputeThreads maximum value is limited to # of cores. What is the # of workers limited to? (cannot be 1 for my setup as job runs successfully with 2).
On Sat, Mar 19, 2016 at 6:56 PM, Anirudh Perugu < [email protected]> wrote: > Hello All, > > I am a giraph newbie, so kindly bear with me. I am trying to run BFS on a > graph which has : 28048 edges and 786 nodes. > > *Here is my Setup :* > Single Node Cluster, 8GB RAM, 4 Cores, Apache Yarn 2.7.2, Giraph 1.2.0, my > single machine has everything(yarn+giraph) running on it. > > *1. How many workers can I have?* > I ask this because my giraph job runs fine with settings :* -w 1 -ca > giraph.SplitMasterWorker=false* > > "Testing Results Table" > > *no. of workers | maximum no. of containers used | time taken for > completion* > 1 3 (as seen on the UI) 0 > min 50 secs > 2 4 > 1 min 18 secs > 3 4 > Long Running Job. I think it times out after 20 minutes. > > for 3 workers, this is the log : > > > *INFO server.PrepRequestProcessor: Got user-level KeeperException when > processing sessionid:0x153910879aa0000 type:create cxid:0x1 zxid:0x2 > txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0004/_masterElectionDir > Error:KeeperErrorCode = NoNode for > /_hadoopBsp/giraph_yarn_application_1458425066569_0004/_masterElectionDir * > So, this fails due to a reason I still haven't figured out, can you answer > this ? > > Finally, leads me to asking how many workers can I have if I have 4 cores > on my machine? Are # of cores and # of workers related? > > > *2. How do I use the setting : giraph.yarn.task.heap.mb=x? I set x to 2048 > but my job runs indefinitely(hangs up). Works great with default setting of > 1024.* > > > *Job takes forever when x=2048, userlogs say :* > 6/03/19 18:05:36 INFO zookeeper.ZooKeeper: Client > environment:java.library.path=/home//Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:. > 16/03/19 18:05:36 INFO zookeeper.ZooKeeper: Client > environment:java.io.tmpdir=/var/folders/s4/n58qlsh97t11vkmhysts8k680000gn/T/ > 16/03/19 18:05:36 INFO zookeeper.ZooKeeper: Client > environment:java.compiler=<NA> > 16/03/19 18:05:36 INFO zookeeper.ZooKeeper: Client environment:os.name=Mac > OS X > 16/03/19 18:05:36 INFO zookeeper.ZooKeeper: Client > environment:os.arch=x86_64 > 16/03/19 18:05:36 INFO zookeeper.ZooKeeper: Client > environment:os.version=10.11.3 > 16/03/19 18:05:36 INFO zookeeper.ZooKeeper: Client environment:user.name > =Anirudh > 16/03/19 18:05:36 INFO zookeeper.ZooKeeper: Client > environment:user.home=/Users/Anirudh > 16/03/19 18:05:36 INFO zookeeper.ZooKeeper: Client > environment:user.dir=/private/tmp/hadoop-Anirudh/nm-local-dir/usercache/Anirudh/appcache/application_1458425066569_0001/container_1458425066569_0001_01_000002 > 16/03/19 18:05:36 INFO zookeeper.ZooKeeper: Initiating client connection, > connectString=172.24.18.199:22181 sessionTimeout=60000 > watcher=org.apache.giraph.master.BspServiceMaster@4097cac > 16/03/19 18:05:36 INFO zookeeper.ClientCnxn: Opening socket connection to > server 172.24.18.199/172.24.18.199:22181. Will not attempt to > authenticate using SASL (unknown error) > 16/03/19 18:05:36 INFO server.NIOServerCnxnFactory: Accepted socket > connection from /172.24.18.199:61815 > 16/03/19 18:05:36 INFO zookeeper.ClientCnxn: Socket connection established > to 172.24.18.199/172.24.18.199:22181, initiating session > 16/03/19 18:05:36 INFO server.ZooKeeperServer: Client attempting to > establish new session at /172.24.18.199:61815 > 16/03/19 18:05:36 INFO persistence.FileTxnLog: Creating new log file: log.1 > 16/03/19 18:05:36 INFO server.ZooKeeperServer: Established session > 0x15390e97a2a0000 with negotiated timeout 600000 for client / > 172.24.18.199:61815 > 16/03/19 18:05:36 INFO zookeeper.ClientCnxn: Session establishment > complete on server 172.24.18.199/172.24.18.199:22181, sessionid = > 0x15390e97a2a0000, negotiated timeout = 600000 > 16/03/19 18:05:36 INFO bsp.BspService: process: Asynchronous connection > complete. > 16/03/19 18:05:36 INFO yarn.GiraphYarnTask: [STATUS: task-0] > MASTER_ZOOKEEPER_ONLY starting... > 16/03/19 18:05:36 INFO graph.GraphTaskManager: map: No need to do anything > when not a worker > 16/03/19 18:05:36 INFO graph.GraphTaskManager: cleanup: Starting for > MASTER_ZOOKEEPER_ONLY > 16/03/19 18:05:36 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x1 zxid:0x2 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_masterElectionDir > Error:KeeperErrorCode = NoNode for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_masterElectionDir > 16/03/19 18:05:36 INFO master.BspServiceMaster: becomeMaster: First child > is > '/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_masterElectionDir/172.24.18.199_00000000000' > and my bid is > '/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_masterElectionDir/172.24.18.199_00000000000' > 16/03/19 18:05:36 INFO netty.NettyServer: NettyServer: Using execution > group with 8 threads for requestFrameDecoder. > 16/03/19 18:05:36 INFO Configuration.deprecation: mapred.map.tasks is > deprecated. Instead, use mapreduce.job.maps > 16/03/19 18:05:36 INFO netty.NettyServer: start: Started server > communication server: /172.24.18.199:30000 with up to 16 threads on bind > attempt 0 with sendBufferSize = 32768 receiveBufferSize = 524288 > 16/03/19 18:05:36 INFO netty.NettyClient: NettyClient: Using execution > handler with 8 threads after request-encoder. > 16/03/19 18:05:36 INFO master.BspServiceMaster: becomeMaster: I am now the > master! > 16/03/19 18:05:36 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0xe zxid:0x9 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0 > Error:KeeperErrorCode = NoNode for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0 > 16/03/19 18:05:36 INFO bsp.BspService: process: applicationAttemptChanged > signaled > 16/03/19 18:05:36 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x16 zxid:0xc txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1 > Error:KeeperErrorCode = NoNode for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1 > 16/03/19 18:05:36 WARN bsp.BspService: process: Unknown and unprocessed > event > (path=/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir, > type=NodeChildrenChanged, state=SyncConnected) > 16/03/19 18:05:36 INFO yarn.GiraphYarnTask: [STATUS: task-0] > MASTER_ZOOKEEPER_ONLY checkWorkers: Only found 0 responses of 1 needed to > start superstep -1 > 16/03/19 18:06:06 INFO master.BspServiceMaster: checkWorkers: Only found 0 > responses of 1 needed to start superstep -1. Reporting every 30000 msecs, > 569971 more msecs left before giving up. > 16/03/19 18:06:06 INFO master.BspServiceMaster: > logMissingWorkersOnSuperstep: No response from partition 1 (could be master) > 16/03/19 18:06:06 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x22 zxid:0x10 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > 16/03/19 18:06:06 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x23 zxid:0x11 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > 16/03/19 18:06:06 INFO yarn.GiraphYarnTask: [STATUS: task-0] > MASTER_ZOOKEEPER_ONLY checkWorkers: Only found 0 responses of 1 needed to > start superstep -1 > 16/03/19 18:06:36 INFO master.BspServiceMaster: checkWorkers: Only found 0 > responses of 1 needed to start superstep -1. Reporting every 30000 msecs, > 539950 more msecs left before giving up. > 16/03/19 18:06:36 INFO master.BspServiceMaster: > logMissingWorkersOnSuperstep: No response from partition 1 (could be master) > 16/03/19 18:06:36 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x26 zxid:0x12 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > 16/03/19 18:06:36 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x27 zxid:0x13 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > 16/03/19 18:06:36 INFO yarn.GiraphYarnTask: [STATUS: task-0] > MASTER_ZOOKEEPER_ONLY checkWorkers: Only found 0 responses of 1 needed to > start superstep -1 > 16/03/19 18:07:06 INFO master.BspServiceMaster: checkWorkers: Only found 0 > responses of 1 needed to start superstep -1. Reporting every 30000 msecs, > 509938 more msecs left before giving up. > 16/03/19 18:07:06 INFO master.BspServiceMaster: > logMissingWorkersOnSuperstep: No response from partition 1 (could be master) > 16/03/19 18:07:06 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x2a zxid:0x14 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > 16/03/19 18:07:06 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x2b zxid:0x15 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > 16/03/19 18:07:06 INFO yarn.GiraphYarnTask: [STATUS: task-0] > MASTER_ZOOKEEPER_ONLY checkWorkers: Only found 0 responses of 1 needed to > start superstep -1 > 16/03/19 18:07:36 INFO master.BspServiceMaster: checkWorkers: Only found 0 > responses of 1 needed to start superstep -1. Reporting every 30000 msecs, > 479927 more msecs left before giving up. > 16/03/19 18:07:36 INFO master.BspServiceMaster: > logMissingWorkersOnSuperstep: No response from partition 1 (could be master) > 16/03/19 18:07:36 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x2e zxid:0x16 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > 16/03/19 18:07:36 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x2f zxid:0x17 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > 16/03/19 18:07:36 INFO yarn.GiraphYarnTask: [STATUS: task-0] > MASTER_ZOOKEEPER_ONLY checkWorkers: Only found 0 responses of 1 needed to > start superstep -1 > 16/03/19 18:08:06 INFO master.BspServiceMaster: checkWorkers: Only found 0 > responses of 1 needed to start superstep -1. Reporting every 30000 msecs, > 449916 more msecs left before giving up. > 16/03/19 18:08:06 INFO master.BspServiceMaster: > logMissingWorkersOnSuperstep: No response from partition 1 (could be master) > 16/03/19 18:08:06 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x32 zxid:0x18 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir > 16/03/19 18:08:06 INFO server.PrepRequestProcessor: Got user-level > KeeperException when processing sessionid:0x15390e97a2a0000 type:create > cxid:0x33 zxid:0x19 txntype:-1 reqpath:n/a Error > Path:/_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > Error:KeeperErrorCode = NodeExists for > /_hadoopBsp/giraph_yarn_application_1458425066569_0001/_applicationAttemptsDir/0/_superstepDir/-1/_workerUnhealthyDir > 16/03/19 18:08:06 INFO yarn.GiraphYarnTask: [STATUS: task-0] > MASTER_ZOOKEEPER_ONLY checkWorkers: Only found 0 responses of 1 needed to > start superstep -1 > 16/03/19 18:08:36 INFO master.BspServiceMaster: checkWorkers: Only found 0 > responses of 1 needed to start superstep -1. Reporting every 30000 msecs, > 419894 more msecs left before giving up. > ----------------------------------------End of > Logs-------------------------------------------------------- > > Does this mean that it required 1 worker to start the -1th superstep but > did not find any or is it something else? > - If that is the case, I can confirm that I have a node (the only) which > is healthy. > > Finally, how do I give more memory to the giraph job? > > > *3. When I kill a long running job by either killing the application on > GUI or by pressing control+c, why does my jps still show these :* > anirudh:hadoop-2.7.2 Anirudh$ jps > > > *9009 GiraphYarnTask8962 GiraphApplicationMaster*9267 Jps > 8725 NameNode > 8855 NodeManager > 8764 DataNode > 8815 ResourceManager > > Aren't they supposed to be killed as well? I ask this because if I run a > new job at this time, the job is forever in ACCEPTED state. Only after > those are killed, a fresh job does go to completion (my observation). > > Alright then, I am hoping for a reply which will address these issues. > > Thanks > Anirudh >
