Nope, AFAIK its not in CDH3u3, but CDH3u4 will have it. On Thu, Apr 19, 2012 at 10:57 AM, Ramkrishna.S.Vasudevan <ramkrishna.vasude...@huawei.com> wrote: > Hi Lee > > Is HBASE-5073 resolved in that release? > > Regards > Ram > >> -----Original Message----- >> From: Eason Lee [mailto:softse....@gmail.com] >> Sent: Thursday, April 19, 2012 10:40 AM >> To: user@hbase.apache.org >> Subject: Re: HBaseAdmin needs a close methord >> >> I am using cloudera's cdh3u3 >> > Hi Lee >> > >> > Which version of HBase are you using? >> > >> > Regards >> > Ram >> > >> >> -----Original Message----- >> >> From: Eason Lee [mailto:softse....@gmail.com] >> >> Sent: Thursday, April 19, 2012 9:36 AM >> >> To: user@hbase.apache.org >> >> Subject: HBaseAdmin needs a close methord >> >> >> >> Resently, my app meets a problem list as follows >> >> >> >> Can't construct instance of class >> >> org/apache/hadoop/hbase/client/HBaseAdmin >> >> Exception in thread "Thread-2" java.lang.OutOfMemoryError: unable to >> >> create new native thread >> >> at java.lang.Thread.start0(Native Method) >> >> at java.lang.Thread.start(Thread.java:640) >> >> at org.apache.zookeeper.ClientCnxn.start(ClientCnxn.java:414) >> >> at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:378) >> >> at org.apache.hadoop.hbase.zookeeper.ZKUtil.connect(ZKUtil.java:97) >> >> at >> >> >> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeperWatc >> >> her.java:119) >> >> at >> >> >> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementa >> >> tion.getZooKeeperWatcher(HConnectionManager.java:1002) >> >> at >> >> >> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementa >> >> tion.setupZookeeperTrackers(HConnectionManager.java:304) >> >> at >> >> >> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementa >> >> tion.<init>(HConnectionManager.java:295) >> >> at >> >> >> org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnec >> >> tionManager.java:157) >> >> at >> org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:90) >> >> Call to org.apache.hadoop.hbase.HBaseAdmin::HBaseAdmin failed! >> >> >> >> My app create HBaseAdmin every 30s,and the threads used by my app >> >> increases about 1thread/30s.See from the stack, there is only one >> >> HBaseAdmin in Memory, but lots of Configuration and >> >> HConnectionImplementation instances. >> >> >> >> I can see from the sources, everytime when HBaseAdmin is created, a >> new >> >> Configuration and HConnectionImplementation is created and added to >> >> HConnectionManager.HBASE_INSTANCES.So they are not collected by gc >> when >> >> HBaseAdmin is collected. >> >> >> >> So i think we need to add a close methord to remove the >> >> Configuration&HConnectionImplementation from >> >> HConnectionManager.HBASE_INSTANCES.Just as follows: >> >> >> >> public void close(){ >> >> HConnectionManager.deleteConnection(getConfiguration(), true); >> >> } >> > >> > >> > > >
-- Harsh J
