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https://issues.apache.org/jira/browse/HBASE-2900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12895539#action_12895539
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wei.zhang commented on HBASE-2900:
----------------------------------
This error occured before I insert any thing. It just happens when I want to
instantiate a HTable object.
// You need a configuration object to tell the client where to connect.
// When you create a HBaseConfiguration, it reads in whatever you've set
// into your hbase-site.xml and in hbase-default.xml, as long as these can
// be found on the CLASSPATH
HBaseConfiguration config = new HBaseConfiguration();
// This instantiates an HTable object that connects you to
// the "myLittleHBaseTable" table.
HTable table = new HTable(config, "myLittleHBaseTable");
> HBase Out of Memory when the java client connect to the hbase server first
> time
> -------------------------------------------------------------------------------
>
> Key: HBASE-2900
> URL: https://issues.apache.org/jira/browse/HBASE-2900
> Project: HBase
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.20.5
> Environment: Linux Ubuntu
> jdk1.6.0_21
> hadoop-0.20.2
> Pseudo-Distributed mode for hadoop and hbase
> Reporter: wei.zhang
>
> I installed the hbase and hadoop under the Pseudo-Distributed mode:
> I configure the server side with following configuration:
> hadoop: core-site.xml
> <property>
> <name>fs.default.name</name>
> <value>hdfs://cluster1.office:9000</value>
> </property>
> hadoop:mapred-site.xml
> <property>
> <name>mapred.job.tracker</name>
> <value>localhost:9001</value>
> </property>
> hadoop:hdfs-site.xml
> <property>
> <name>dfs.replication</name>
> <value>1</value>
> </property>
> hbase:hbase-site.xml
> <property>
> <name>hbase.rootdir</name>
> <value>hdfs://cluster1.office:9000/hbase</value>
> <description>The directory shared by region servers.
> </description>
> </property>
> I configure my client side(this is not in the same server as the server side)
> with following configuration:
> <property>
> <name>hbase.rootdir</name>
> <value>hdfs://cluster1.office/hbase</value>
> </property>
> <property>
> <name>hbase.zookeeper.quorum</name>
> <value>cluster1.office</value>
> </property>
> And then I connect to server side by java API described in the following page:
> http://hbase.apache.org/docs/current/api/org/apache/hadoop/hbase/client/package-summary.html#package_description
> Unfortunately I get the Out of memory error:
> 2010-08-04 17:57:49,636 INFO org.apache.hadoop.hbase.regionserver.HRegion:
> Starting compaction on region -ROOT-,,0
> 2010-08-04 17:57:49,686 INFO org.apache.hadoop.hbase.master.ServerManager: 1
> region servers, 0 dead, average load 4.0
> 2010-08-04 17:57:49,815 DEBUG org.apache.hadoop.hbase.regionserver.Store:
> Compaction size of info: 4.0k; Skipped 1 file(s), size: 1849
> 2010-08-04 17:57:49,815 INFO org.apache.hadoop.hbase.regionserver.Store:
> Started compaction of 4 file(s) in info of -ROOT-,,0 into
> /hbase/-ROOT-/compaction.dir/70236052, seqid=112
> 2010-08-04 17:57:49,921 INFO org.apache.hadoop.hbase.regionserver.Store:
> Completed compaction of 4 file(s) in info of -ROOT-,,0; new storefile is
> hdfs://cluster1.jsw.office:9000/hbase/-ROOT-/70236052/info/1636337967443011476;
> store size is 3.0k
> 2010-08-04 17:57:49,926 INFO org.apache.hadoop.hbase.regionserver.HRegion:
> compaction completed on region -ROOT-,,0 in 0sec
> 2010-08-04 17:57:49,926 INFO org.apache.hadoop.hbase.regionserver.HRegion:
> Starting compaction on region .META.,,1
> 2010-08-04 17:57:49,928 DEBUG org.apache.hadoop.hbase.regionserver.Store:
> historian: no store files to compact
> 2010-08-04 17:57:49,937 DEBUG org.apache.hadoop.hbase.regionserver.Store:
> Compaction size of info: 5.5k; Skipped 0 file(s), size: 0
> 2010-08-04 17:57:49,937 INFO org.apache.hadoop.hbase.regionserver.Store:
> Started compaction of 5 file(s) in info of .META.,,1 into
> /hbase/.META./compaction.dir/1028785192, seqid=116
> 2010-08-04 17:57:50,000 INFO org.apache.hadoop.hbase.master.BaseScanner:
> RegionManager.rootScanner scanning meta region {server: 192.168.1.81:39859,
> regionname: -ROOT-,,0, startKey: <>}
> 2010-08-04 17:57:50,037 INFO org.apache.hadoop.hbase.regionserver.Store:
> Completed compaction of 5 file(s) in info of .META.,,1; new storefile is
> hdfs://cluster1.jsw.office:9000/hbase/.META./1028785192/info/254940474272935789;
> store size is 4.0k
> 2010-08-04 17:57:50,045 INFO org.apache.hadoop.hbase.regionserver.HRegion:
> compaction completed on region .META.,,1 in 0sec
> 2010-08-04 17:57:50,053 INFO org.apache.hadoop.hbase.master.BaseScanner:
> RegionManager.rootScanner scan of 1 row(s) of meta region {server:
> 192.168.1.81:39859, regionname: -ROOT-,,0, startKey: <>} complete
> 2010-08-04 17:57:57,278 FATAL
> org.apache.hadoop.hbase.regionserver.HRegionServer: OutOfMemoryError,
> aborting.
> java.lang.OutOfMemoryError: Java heap space
> at
> org.apache.hadoop.hbase.ipc.HBaseRPC$Invocation.readFields(HBaseRPC.java:175)
> at
> org.apache.hadoop.hbase.ipc.HBaseServer$Connection.processData(HBaseServer.java:867)
> at
> org.apache.hadoop.hbase.ipc.HBaseServer$Connection.readAndProcess(HBaseServer.java:835)
> at
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener.doRead(HBaseServer.java:419)
> at
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener.run(HBaseServer.java:318)
> 2010-08-04 17:57:57,279 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer: Dump of metrics:
> request=0.0, regions=4, stores=5, storefiles=4, storefileIndexSize=0,
> memstoreSize=0, compactionQueueSize=0, usedHeap=23, maxHeap=695,
> blockCacheSize=1208688, blockCacheFree=144726880, blockCacheCount=11,
> blockCacheHitRatio=82, fsReadLatency=0, fsWriteLatency=0, fsSyncLatency=0
> 2010-08-04 17:57:57,279 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
> listener on 39859: exiting on OOME
> 2010-08-04 17:57:57,793 INFO org.apache.hadoop.ipc.HBaseServer: Stopping
> server on 39859
> 2010-08-04 17:57:57,794 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
> handler 24 on 39859: exiting
> 2010-08-04 17:57:57,794 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
> handler 0 on 39859: exiting
> 2010-08-04 17:57:57,794 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
> handler 2 on 39859: exiting
> 2010-08-04 17:57:57,794 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
> handler 20 on 39859: exiting
> 2010-08-04 17:57:57,795 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
> handler 21 on 39859: exiting
> 2010-08-04 17:57:57,795 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer: Stopping infoServer
> 2010-08-04 17:57:57,796 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
> handler 1 on 39859: exiting
> 2010-08-04 17:57:57,796 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
> handler 3 on 39859: exiting
> 2010-08-04 17:57:57,796 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
> handler 4 on 39859: exiting
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