Are your zk servers the same as the hbase regionservers? What is your setup?
What were the warn messages? Can you post them here? On 8/20/09, [email protected] <[email protected]> wrote: > > Hi there, > > It worked well while I fired 5 threads to fetch data from HBASE,but > it failed after I incresed to 6 threads. > Although it showed some WARN, the thread job can't be done! > My hbase is the latest version hbase0.20. > I want to test HBase multi read performance. > Any suggestion? > Thank you > > Fleming > > > hbase-env.sh > export HBASE_MANAGES_ZK=true > > 09/08/21 09:54:07 WARN zookeeper.ZooKeeperWrapper: Failed to create /hbase > -- check quorum servers, currently=10.42.253.182:2181 > org.apache.zookeeper.KeeperException$ConnectionLossException: > KeeperErrorCode = ConnectionLoss for /hbase > at > org.apache.zookeeper.KeeperException.create(KeeperException.java:90) > at > org.apache.zookeeper.KeeperException.create(KeeperException.java:42) > at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:522) > at > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureExists(ZooKeeperWrapper.java:342) > at > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureParentExists(ZooKeeperWrapper.java:365) > at > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.checkOutOfSafeMode(ZooKeeperWrapper.java:478) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:846) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:515) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:524) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:528) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:123) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:101) > at > org.gridgain.examples.executor.FlowJob.getHBaseData(FlowJob.java:144) > at org.gridgain.examples.executor.FlowJob.call(FlowJob.java:78) > at org.gridgain.examples.executor.FlowJob.call(FlowJob.java:1) > at > org.gridgain.grid.kernal.executor.GridExecutorCallableTask$1.execute(GridExecutorCallableTask.java:57) > at > org.gridgain.grid.kernal.processors.job.GridJobWorker.body(GridJobWorker.java:406) > at > org.gridgain.grid.util.runnable.GridRunnable$1.run(GridRunnable.java:142) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > at > org.gridgain.grid.util.runnable.GridRunnable.run(GridRunnable.java:194) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:619) > --------------------------------------------------------------------------- > TSMC PROPERTY > This email communication (and any attachments) is proprietary information > for the sole use of its > intended recipient. Any unauthorized review, use or distribution by anyone > other than the intended > recipient is strictly prohibited. If you are not the intended recipient, > please notify the sender by > replying to this email, and then delete this email and any copies of it > immediately. Thank you. > --------------------------------------------------------------------------- > > > > -- Amandeep Khurana Computer Science Graduate Student University of California, Santa Cruz
