Thanks guys. For the lazy (e.g. me) and future searchers, here are some links. The benchmark is meant to simulate the same performance tests quoted in Google's BigTable paper.
* PerformanceEvaluation wiki page: http://wiki.apache.org/hadoop/Hbase/PerformanceEvaluation * PerformanceEvaluation.java: http://svn.apache.org/viewvc/hadoop/hbase/trunk/src/test/org/apache/hadoop/hbase/PerformanceEvaluation.java?view=co Thanks, Jeff On Mon, Aug 17, 2009 at 5:09 PM, stack <[email protected]> wrote: > On Mon, Aug 17, 2009 at 4:54 PM, Jeff Hammerbacher <[email protected] > >wrote: > > > Hey Stack, > > > > I notice that the patch for this issue doesn't include any sort of tests > > that might have caught this regression. Do you guys have an HBaseBench, > > HBaseMix, or similarly named tool for catching performance regressions? > > > > Not as part of our build. The way its currently done is that near release, > we run our little PerformanceEvaluation doohickey. If its way off, crack > the profiler. > > We have been trying to get some of the hadoop allotment of EC2 time so we > could set up a regular run up on AWS but no luck so far. > > Good on your Jeff, > St.Ack > > > > > > > > > > > Thanks, > > Jeff > > > > On Mon, Aug 17, 2009 at 4:51 PM, stack <[email protected]> wrote: > > > > > Our writes were off by a factor of 7 or 8. Writes should be better now > > > (HBASE-1771). > > > Thanks, > > > St.Ack > > > > > > > > > On Thu, Aug 13, 2009 at 4:53 PM, stack <[email protected]> wrote: > > > > > > > I just tried it. It seems slow to me writing too. Let me take a > > > look.... > > > > St.Ack > > > > > > > > > > > > On Thu, Aug 13, 2009 at 10:06 AM, llpind <[email protected]> > > wrote: > > > > > > > >> > > > >> Okay I changed replication to 2. and removed "-XX:NewSize=6m > > > >> -XX:MaxNewSize=6m" > > > >> > > > >> here is results for randomWrite 3 clients: > > > >> > > > >> > > > >> > > > >> RandomWrite ================================================= > > > >> > > > >> hadoop-0.20.0/bin/hadoop jar hbase-0.20.0/hbase-0.20.0-test.jar > > > >> --nomapred > > > >> randomWrite 3 > > > >> > > > >> > > > >> 09/08/13 09:51:15 INFO hbase.PerformanceEvaluation: client-0 Start > > > >> randomWrite at offset 0 for 1048576 rows > > > >> 09/08/13 09:51:15 INFO hbase.PerformanceEvaluation: client-1 Start > > > >> randomWrite at offset 1048576 for 1048576 rows > > > >> 09/08/13 09:51:15 INFO hbase.PerformanceEvaluation: client-2 Start > > > >> randomWrite at offset 2097152 for 1048576 rows > > > >> 09/08/13 09:51:47 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/104857/1048576 > > > >> 09/08/13 09:51:48 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/1153427/2097152 > > > >> 09/08/13 09:51:48 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/2201997/3145728 > > > >> 09/08/13 09:52:22 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/1258284/2097152 > > > >> 09/08/13 09:52:23 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/209714/1048576 > > > >> 09/08/13 09:52:24 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/2306854/3145728 > > > >> 09/08/13 09:52:47 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/1363141/2097152 > > > >> 09/08/13 09:52:58 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/314571/1048576 > > > >> 09/08/13 09:52:58 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/2411711/3145728 > > > >> 09/08/13 09:53:24 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/1467998/2097152 > > > >> 09/08/13 09:53:27 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/419428/1048576 > > > >> 09/08/13 09:53:27 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/2516568/3145728 > > > >> 09/08/13 09:53:48 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/1572855/2097152 > > > >> 09/08/13 09:54:08 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/2621425/3145728 > > > >> 09/08/13 09:54:10 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/524285/1048576 > > > >> 09/08/13 09:54:40 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/1677712/2097152 > > > >> 09/08/13 09:54:49 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/2726282/3145728 > > > >> 09/08/13 09:54:52 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/629142/1048576 > > > >> 09/08/13 09:55:57 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/1782569/2097152 > > > >> 09/08/13 09:56:21 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/2831139/3145728 > > > >> 09/08/13 09:56:41 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/733999/1048576 > > > >> 09/08/13 09:57:23 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/1887426/2097152 > > > >> 09/08/13 09:58:40 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/2935996/3145728 > > > >> 09/08/13 09:58:54 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/838856/1048576 > > > >> 09/08/13 10:00:29 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/1992283/2097152 > > > >> 09/08/13 10:01:01 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/3040853/3145728 > > > >> 09/08/13 10:01:24 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/943713/1048576 > > > >> 09/08/13 10:02:36 INFO hbase.PerformanceEvaluation: client-1 > > > >> 1048576/2097140/2097152 > > > >> 09/08/13 10:02:37 INFO hbase.PerformanceEvaluation: client-1 > Finished > > > >> randomWrite in 680674ms at offset 1048576 for 1048576 rows > > > >> 09/08/13 10:02:37 INFO hbase.PerformanceEvaluation: Finished 1 in > > > 680674ms > > > >> writing 1048576 rows > > > >> 09/08/13 10:03:19 INFO hbase.PerformanceEvaluation: client-2 > > > >> 2097152/3145710/3145728 > > > >> 09/08/13 10:03:20 INFO hbase.PerformanceEvaluation: client-2 > Finished > > > >> randomWrite in 723771ms at offset 2097152 for 1048576 rows > > > >> 09/08/13 10:03:20 INFO hbase.PerformanceEvaluation: Finished 2 in > > > 723771ms > > > >> writing 1048576 rows > > > >> 09/08/13 10:03:41 INFO hbase.PerformanceEvaluation: client-0 > > > >> 0/1048570/1048576 > > > >> 09/08/13 10:03:42 INFO hbase.PerformanceEvaluation: client-0 > Finished > > > >> randomWrite in 746054ms at offset 0 for 1048576 rows > > > >> 09/08/13 10:03:42 INFO hbase.PerformanceEvaluation: Finished 0 in > > > 746054ms > > > >> writing 1048576 rows > > > >> > > > >> > > > >> > > > >> ============================================================ > > > >> > > > >> Still pretty slow. Any other ideas? I'm running the client from > the > > > >> master > > > >> box, but its not running any regionServers or datanodes. > > > >> > > > >> stack-3 wrote: > > > >> > > > > >> > Your config. looks fine. > > > >> > > > > >> > Only think that gives me pause is: > > > >> > > > > >> > "-XX:NewSize=6m -XX:MaxNewSize=6m" > > > >> > > > > >> > Any reason for the above? > > > >> > > > > >> > If you study your GC logs, lots of pauses? > > > >> > > > > >> > Oh, and this: replication is set to 6. Why 6? Each write must > > commit > > > >> to > > > >> > 6 > > > >> > datanodes before complete. In the tests posted on wiki, we > > replicate > > > to > > > >> 3 > > > >> > nodes. > > > >> > > > > >> > In end of this message you say you are doing gets? Numbers you > > posted > > > >> > were > > > >> > for writes? > > > >> > > > > >> > St.Ack > > > >> > > > > >> > > > > >> > On Wed, Aug 12, 2009 at 1:15 PM, llpind <[email protected]> > > > wrote: > > > >> > > > > >> >> > > > >> >> Not sure why my performance is so slow. Here is my > configuration: > > > >> >> > > > >> >> box1: > > > >> >> 10395 SecondaryNameNode > > > >> >> 11628 Jps > > > >> >> 10131 NameNode > > > >> >> 10638 HQuorumPeer > > > >> >> 10705 HMaster > > > >> >> > > > >> >> box 2-5: > > > >> >> 6741 HQuorumPeer > > > >> >> 6841 HRegionServer > > > >> >> 7881 Jps > > > >> >> 6610 DataNode > > > >> >> > > > >> >> > > > >> >> hbase site: ======================= > > > >> >> <?xml version="1.0"?> > > > >> >> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> > > > >> >> <!-- > > > >> >> /** > > > >> >> * Copyright 2007 The Apache Software Foundation > > > >> >> * > > > >> >> * Licensed to the Apache Software Foundation (ASF) under one > > > >> >> * or more contributor license agreements. See the NOTICE file > > > >> >> * distributed with this work for additional information > > > >> >> * regarding copyright ownership. The ASF licenses this file > > > >> >> * to you under the Apache License, Version 2.0 (the > > > >> >> * "License"); you may not use this file except in compliance > > > >> >> * with the License. You may obtain a copy of the License at > > > >> >> * > > > >> >> * http://www.apache.org/licenses/LICENSE-2.0 > > > >> >> * > > > >> >> * Unless required by applicable law or agreed to in writing, > > > software > > > >> >> * distributed under the License is distributed on an "AS IS" > > BASIS, > > > >> >> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express > or > > > >> >> implied. > > > >> >> * See the License for the specific language governing > permissions > > > and > > > >> >> * limitations under the License. > > > >> >> */ > > > >> >> --> > > > >> >> <configuration> > > > >> >> <property> > > > >> >> <name>hbase.rootdir</name> > > > >> >> <value>hdfs://box1:9000/hbase</value> > > > >> >> <description>The directory shared by region servers. > > > >> >> </description> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hbase.master.port</name> > > > >> >> <value>60000</value> > > > >> >> <description>The port that the HBase master runs at. > > > >> >> </description> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hbase.cluster.distributed</name> > > > >> >> <value>true</value> > > > >> >> <description>The mode the cluster will be in. Possible values > > are > > > >> >> false: standalone and pseudo-distributed setups with managed > > > >> >> Zookeeper > > > >> >> true: fully-distributed with unmanaged Zookeeper Quorum (see > > > >> >> hbase-env.sh) > > > >> >> </description> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hbase.regionserver.lease.period</name> > > > >> >> <value>120000</value> > > > >> >> <description>HRegion server lease period in milliseconds. > > Default > > > is > > > >> >> 60 seconds. Clients must report in within this period else > they > > > are > > > >> >> considered dead.</description> > > > >> >> </property> > > > >> >> > > > >> >> <property> > > > >> >> <name>hbase.zookeeper.property.clientPort</name> > > > >> >> <value>2222</value> > > > >> >> <description>Property from ZooKeeper's config zoo.cfg. > > > >> >> The port at which the clients will connect. > > > >> >> </description> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hbase.zookeeper.property.dataDir</name> > > > >> >> <value>/home/hadoop/zookeeper</value> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hbase.zookeeper.property.syncLimit</name> > > > >> >> <value>5</value> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hbase.zookeeper.property.tickTime</name> > > > >> >> <value>2000</value> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hbase.zookeeper.property.initLimit</name> > > > >> >> <value>10</value> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hbase.zookeeper.quorum</name> > > > >> >> <value>box1,box2,box3,box4</value> > > > >> >> <description>Comma separated list of servers in the > ZooKeeper > > > >> >> Quorum. > > > >> >> For example, > > > >> >> "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com". > > > >> >> By default this is set to localhost for local and > > > >> pseudo-distributed > > > >> >> modes > > > >> >> of operation. For a fully-distributed setup, this should be > > set > > > to > > > >> a > > > >> >> full > > > >> >> list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set > > in > > > >> >> hbase-env.sh > > > >> >> this is the list of servers which we will start/stop > ZooKeeper > > > on. > > > >> >> </description> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hfile.block.cache.size</name> > > > >> >> <value>.5</value> > > > >> >> <description>text</description> > > > >> >> </property> > > > >> >> > > > >> >> </configuration> > > > >> >> > > > >> >> > > > >> >> hbase env:==================================================== > > > >> >> > > > >> >> export HBASE_CLASSPATH=${HADOOP_CONF_DIR} > > > >> >> > > > >> >> export HBASE_HEAPSIZE=3000 > > > >> >> > > > >> >> export HBASE_OPTS="-XX:NewSize=6m -XX:MaxNewSize=6m > > > >> >> -XX:+UseConcMarkSweepGC > > > >> >> -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps > > > >> >> -XX:+CMSIncrementalMode > > > >> >> -Xloggc:/home/hadoop/hbase-0.20.0/logs/gc-hbase.log" > > > >> >> > > > >> >> export HBASE_MANAGES_ZK=true > > > >> >> > > > >> >> Hadoop core > > > >> >> site=========================================================== > > > >> >> > > > >> >> <?xml version="1.0"?> > > > >> >> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> > > > >> >> > > > >> >> <!-- Put site-specific property overrides in this file. --> > > > >> >> > > > >> >> <configuration> > > > >> >> <property> > > > >> >> <name>fs.default.name</name> > > > >> >> <value>hdfs://box1:9000</value> > > > >> >> <description>The name of the default file system. A URI whose > > > >> >> scheme and authority determine the FileSystem implementation. > > The > > > >> >> uri's scheme determines the config property (fs.SCHEME.impl) > > naming > > > >> >> the FileSystem implementation class. The uri's authority is > used > > > to > > > >> >> determine the host, port, etc. for a filesystem.</description> > > > >> >> </property> > > > >> >> <property> > > > >> >> <name>hadoop.tmp.dir</name> > > > >> >> <value>/data/hadoop-0.20.0-${user.name}</value> > > > >> >> <description>A base for other temporary > directories.</description> > > > >> >> </property> > > > >> >> </configuration> > > > >> >> > > > >> >> ============== > > > >> >> > > > >> >> replication is set to 6. > > > >> >> > > > >> >> hadoop env================= > > > >> >> > > > >> >> export HADOOP_HEAPSIZE=3000 > > > >> >> export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote > > > >> >> $HADOOP_NAMENODE_OPTS" > > > >> >> export > > HADOOP_SECONDARYNAMENODE_OPTS="-Dcom.sun.management.jmxremote > > > >> >> $HADOOP_SECONDARYNAMENODE_OPTS" > > > >> >> export HADOOP_DATANODE_OPTS="-Dcom.sun.management.jmxremote > > > >> >> $HADOOP_DATANODE_OPTS" > > > >> >> export HADOOP_BALANCER_OPTS="-Dcom.sun.management.jmxremote > > > >> >> $HADOOP_BALANCER_OPTS" > > > >> >> export HADOOP_JOBTRACKER_OPTS="-Dcom.sun.management.jmxremote > > > >> >> $HADOOP_JOBTRACKER_OPTS" > > > >> >> ================== > > > >> >> > > > >> >> > > > >> >> Very basic setup. then i start the cluster do simple random Get > > > >> >> operations > > > >> >> on a tall table (~60 M rows): > > > >> >> > > > >> >> {NAME => 'tallTable', FAMILIES => [{NAME => 'family1', > COMPRESSION > > => > > > >> >> 'NONE', VERSIONS => '3', TTL => '2147483647', BLOCKSIZE => > '65536', > > > >> >> IN_MEMORY => 'false', BLOCKCACHE => 'true'}]} > > > >> >> > > > >> >> Is this fairly normal speeds? I'm unsure if this is a result of > > > having > > > >> a > > > >> >> small cluster? Please advise... > > > >> >> > > > >> >> stack-3 wrote: > > > >> >> > > > > >> >> > Yeah, seems slow. In old hbase, it could do 5-10k writes a > > second > > > >> >> going > > > >> >> > by > > > >> >> > performance eval page up on wiki. SequentialWrite was about > same > > > as > > > >> >> > RandomWrite. Check out the stats on hw up on that page and > > > >> description > > > >> >> of > > > >> >> > how test was set up. Can you figure where its slow? > > > >> >> > > > > >> >> > St.Ack > > > >> >> > > > > >> >> > On Wed, Aug 12, 2009 at 10:10 AM, llpind < > [email protected] > > > > > > >> >> wrote: > > > >> >> > > > > >> >> >> > > > >> >> >> Thanks Stack. > > > >> >> >> > > > >> >> >> I will try mapred with more clients. I tried it without > mapred > > > >> using > > > >> >> 3 > > > >> >> >> clients Random Write operations here was the output: > > > >> >> >> > > > >> >> >> 09/08/12 09:22:52 INFO hbase.PerformanceEvaluation: client-0 > > Start > > > >> >> >> randomWrite at offset 0 for 1048576 rows > > > >> >> >> 09/08/12 09:22:52 INFO hbase.PerformanceEvaluation: client-1 > > Start > > > >> >> >> randomWrite at offset 1048576 for 1048576 rows > > > >> >> >> 09/08/12 09:22:52 INFO hbase.PerformanceEvaluation: client-2 > > Start > > > >> >> >> randomWrite at offset 2097152 for 1048576 rows > > > >> >> >> 09/08/12 09:24:23 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/1153427/2097152 > > > >> >> >> 09/08/12 09:24:23 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/2201997/3145728 > > > >> >> >> 09/08/12 09:24:25 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/104857/1048576 > > > >> >> >> 09/08/12 09:27:42 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/209714/1048576 > > > >> >> >> 09/08/12 09:27:46 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/1258284/2097152 > > > >> >> >> 09/08/12 09:27:46 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/2306854/3145728 > > > >> >> >> 09/08/12 09:32:32 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/1363141/2097152 > > > >> >> >> 09/08/12 09:32:33 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/314571/1048576 > > > >> >> >> 09/08/12 09:32:41 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/2411711/3145728 > > > >> >> >> 09/08/12 09:35:31 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/419428/1048576 > > > >> >> >> 09/08/12 09:35:34 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/1467998/2097152 > > > >> >> >> 09/08/12 09:35:53 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/2516568/3145728 > > > >> >> >> 09/08/12 09:39:02 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/524285/1048576 > > > >> >> >> 09/08/12 09:39:03 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/2621425/3145728 > > > >> >> >> 09/08/12 09:40:07 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/1572855/2097152 > > > >> >> >> 09/08/12 09:42:53 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/629142/1048576 > > > >> >> >> 09/08/12 09:44:25 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/2726282/3145728 > > > >> >> >> 09/08/12 09:44:44 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/1677712/2097152 > > > >> >> >> 09/08/12 09:46:43 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/733999/1048576 > > > >> >> >> 09/08/12 09:48:11 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/2831139/3145728 > > > >> >> >> 09/08/12 09:48:29 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/1782569/2097152 > > > >> >> >> 09/08/12 09:50:12 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/838856/1048576 > > > >> >> >> 09/08/12 09:52:47 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/2935996/3145728 > > > >> >> >> 09/08/12 09:53:51 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/1887426/2097152 > > > >> >> >> 09/08/12 09:56:32 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/943713/1048576 > > > >> >> >> 09/08/12 09:58:32 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/3040853/3145728 > > > >> >> >> 09/08/12 09:59:14 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/1992283/2097152 > > > >> >> >> 09/08/12 10:02:28 INFO hbase.PerformanceEvaluation: client-0 > > > >> >> >> 0/1048570/1048576 > > > >> >> >> 09/08/12 10:02:30 INFO hbase.PerformanceEvaluation: client-0 > > > >> Finished > > > >> >> >> randomWrite in 2376615ms at offset 0 for 1048576 rows > > > >> >> >> 09/08/12 10:02:30 INFO hbase.PerformanceEvaluation: Finished 0 > > in > > > >> >> >> 2376615ms > > > >> >> >> writing 1048576 rows > > > >> >> >> 09/08/12 10:06:35 INFO hbase.PerformanceEvaluation: client-2 > > > >> >> >> 2097152/3145710/3145728 > > > >> >> >> 09/08/12 10:06:38 INFO hbase.PerformanceEvaluation: client-2 > > > >> Finished > > > >> >> >> randomWrite in 2623395ms at offset 2097152 for 1048576 rows > > > >> >> >> 09/08/12 10:06:38 INFO hbase.PerformanceEvaluation: Finished 2 > > in > > > >> >> >> 2623395ms > > > >> >> >> writing 1048576 rows > > > >> >> >> 09/08/12 10:06:42 INFO hbase.PerformanceEvaluation: client-1 > > > >> >> >> 1048576/2097140/2097152 > > > >> >> >> 09/08/12 10:06:43 INFO hbase.PerformanceEvaluation: client-1 > > > >> Finished > > > >> >> >> randomWrite in 2630199ms at offset 1048576 for 1048576 rows > > > >> >> >> 09/08/12 10:06:43 INFO hbase.PerformanceEvaluation: Finished 1 > > in > > > >> >> >> 2630199ms > > > >> >> >> writing 1048576 rows > > > >> >> >> > > > >> >> >> > > > >> >> >> > > > >> >> >> Seems kind of slow for ~3M records. I have a 4 node cluster > up > > at > > > >> the > > > >> >> >> moment. HMaster & Namenode running on same box. > > > >> >> >> -- > > > >> >> >> View this message in context: > > > >> >> >> > > > >> >> > > > >> > > > > > > http://www.nabble.com/HBase-in-a-real-world-application-tp24920888p24940922.html > > > >> >> >> Sent from the HBase User mailing list archive at Nabble.com. > > > >> >> >> > > > >> >> >> > > > >> >> > > > > >> >> > > > > >> >> > > > >> >> -- > > > >> >> View this message in context: > > > >> >> > > > >> > > > > > > http://www.nabble.com/HBase-in-a-real-world-application-tp24920888p24943406.html > > > >> >> Sent from the HBase User mailing list archive at Nabble.com. > > > >> >> > > > >> >> > > > >> > > > > >> > > > > >> > > > >> -- > > > >> View this message in context: > > > >> > > > > > > http://www.nabble.com/HBase-in-a-real-world-application-tp24920888p24955595.html > > > >> Sent from the HBase User mailing list archive at Nabble.com. > > > >> > > > >> > > > > > > > > > >
