java.io.IOException: Attempt to start root/meta tracker failed. at org.apache.hadoop.hbase.catalog.CatalogTracker.start(CatalogTracker.java:247) at org.apache.hadoop.hbase.client.HBaseAdmin.getCatalogTracker(HBaseAdmin.java:177) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:225) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:241) Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/root-region-server

hbase-user | Jean-Marc Spaggiari | 5 years ago
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  1. 0

    Re: Zookeeper issue? (ConnectionLoss for /hbase/hbaseid)

    apache.org | 2 years ago
    java.io.IOException: Attempt to start root/meta tracker failed. at org.apache.hadoop.hbase.catalog.CatalogTracker.start(CatalogTracker.java:247) at org.apache.hadoop.hbase.client.HBaseAdmin.getCatalogTracker(HBaseAdmin.java:177) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:225) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:241) Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/root-region-server
  2. 0

    Re: Zookeeper issue? (ConnectionLoss for /hbase/hbaseid)

    hbase-user | 5 years ago | Jean-Marc Spaggiari
    java.io.IOException: Attempt to start root/meta tracker failed. at org.apache.hadoop.hbase.catalog.CatalogTracker.start(CatalogTracker.java:247) at org.apache.hadoop.hbase.client.HBaseAdmin.getCatalogTracker(HBaseAdmin.java:177) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:225) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:241) Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/root-region-server
  3. 0

    Re: Zookeeper issue? (ConnectionLoss for /hbase/hbaseid)

    hbase-user | 5 years ago | Jean-Marc Spaggiari
    java.io.IOException: Attempt to start root/meta tracker failed. at org.apache.hadoop.hbase.catalog.CatalogTracker.start(CatalogTracker.java:247) at org.apache.hadoop.hbase.client.HBaseAdmin.getCatalogTracker(HBaseAdmin.java:177) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:225) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:241) Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/root-region-server
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  5. 0

    Users of the Storm distributed computation system ()

    gmane.org | 1 year ago
    java.io.IOException: Connection reset by peer > > at sun.nio.ch.FileDispatcher.read0(Native Method) > >        at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21) > >        at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:198) > >        at sun.nio.ch.IOUtil.read(IOUtil.java:166) > >        at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java: > > 243) > >        at org.apache.zookeeper.ClientCnxn > > $SendThread.doIO(ClientCnxn.java:858) > >        at org.apache.zookeeper.ClientCnxn > > $SendThread.run(ClientCnxn.java:1130) > > > When I changed zookeeper ticktime from 2000 to 4000, the error didn't > > occurred. > > I also got the other new error. > > > 2012-01-11 13:55:14,652 ClientCnxn [ERROR] Error while calling > > watcher > > java.lang.IllegalStateException > >        at > > com.google.common.base.Preconditions.checkState(Preconditions.java: > > 129) > >        at > > > com.netflix.curator.framework.state.ConnectionStateManager.addStateChange(C onnectionStateManager.java: > > 124) > >        at > > > com.netflix.curator.framework.imps.CuratorFrameworkImpl.validateConnection( CuratorFrameworkImpl.java: > > 589) > >        at > > > com.netflix.curator.framework.imps.CuratorFrameworkImpl.processEvent(Curato rFrameworkImpl.java: > > 558) > >        at > > com.netflix.curator.framework.imps.CuratorFrameworkImpl.access > > $000(CuratorFrameworkImpl.java:50) > >        at com.netflix.curator.framework.imps.CuratorFrameworkImpl > > $1.process(CuratorFrameworkImpl.java:112) > >        at > > com.netflix.curator.ConnectionState.process(ConnectionState.java:149) > >        at org.apache.zookeeper.ClientCnxn > > $EventThread.processEvent(ClientCnxn.java:530) > >        at org.apache.zookeeper.ClientCnxn > > $EventThread.run(ClientCnxn.java:506) > > > thanks. > > > On Jan 10, 6:08 pm, Nathan Marz < > wrote: > > > Once every 10 minutes is very frequent. I see it once every few days. Let > > > me know if 0.6.2-SNAPSHOT fixes your issue. > > > > On Mon, Jan 9, 2012 at 11:57 PM, Juta < > wrote: > > > > Thanks, I will try 0.6.2. > > > > > I saw these errors when I run a topology for 30 min. > > > > Once it occurred, it appeared every about 10 minutes. > > > > > On Jan 10, 4:36 pm, Nathan Marz < > wrote: > > > > > 0.6.2 is going to fix this issue by revamping the Zookeeper > > connection > > > > > management by using the Curator client. 0.6.2-SNAPSHOT from the > > downloads > > > > > page ( ) already has > > these > > > > > changes. > > > > > > How often are you seeing these errors? > > > > > > On Mon, Jan 9, 2012 at 11:28 PM, Juta < > wrote: > > > > > > Hi, all. > > > > > > > I executed 1 topology and kill it repeatedly, and sometimes caught > > > > > > zookeeper ConnectionLossException. > > > > > > Does anyone know what is wrong and how to fix it? > > > > > > > My enviromnent: > > > > > >  nimbus, 5 supervisor hosts. > > > > > >  1 zookeeper on nimbus host. > > > > > > > My topology has more than 10 bolts and one of them emits millions > > of > > > > > > tuples. > > > > > > > To evaluate the topology, I repeatedly run the topology for 10min > > and > > > > > > kill it. > > > > > > >  [ERROR] Async loop died! > > > > > > org.apache.zookeeper.KeeperException$ConnectionLossException: > > > > > > KeeperErrorCode = ConnectionLoss for /supervisors at > > > org.apache.zookeeper.KeeperException.create(KeeperException.java:90) at > > > org.apache.zookeeper.KeeperException.create(KeeperException.java:42)

    Root Cause Analysis

    1. java.io.IOException

      Attempt to start root/meta tracker failed. at org.apache.hadoop.hbase.catalog.CatalogTracker.start(CatalogTracker.java:247) at org.apache.hadoop.hbase.client.HBaseAdmin.getCatalogTracker(HBaseAdmin.java:177) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:225) at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:241) Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/root-region-server

      at org.apache.zookeeper.KeeperException.create()
    2. Zookeeper
      ZooKeeper.exists
      1. org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
      2. org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
      3. org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1021)
      3 frames