title: Spark not able to access hbase but able to access with java code
body: <p>I am using  spark 1.3.0 with hbase 1.0. After one week. Hbase run successful with java code. But when using Hbase with spark giving error. I also check with hbase shell is work fine. This errors occurred after long time otherwise work fine with spark also. </p>
  
  <p>I already check hadoop and hbase cluster health is fine. </p>
  
  <p>at spark UI</p>
  
  <pre><code>Caused by: java.io.IOException: Enable/Disable failed 
      at org.apache.hadoop.hbase.client.ZooKeeperRegistry.isTableOnlineState(ZooKeeperRegistry.java:110) 
      at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.isTableDisabled(ConnectionManager.java:907) 
      at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.relocateRegion(ConnectionManager.java:1076) 
      at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.relocateRegion(ConnectionManager.java:1064) 
      at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getRegionLocation(ConnectionManager.java:885) 
      at org.apache.hadoop.hbase.client.RegionServerCallable.prepare(RegionServerCallable.java:78) 
      at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:124) 
      ... 23 more 
   Caused by:org.apache.zookeeper.KeeperException$ConnectionLossException:KeeperErrorCode = ConnectionLoss for /hbase/table/my_sample_table 
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) 
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) 
      at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1151) 
      at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.getData(RecoverableZooKeeper.java:360) 
      at org.apache.hadoop.hbase.zookeeper.ZKUtil.getData(ZKUtil.java:685) 
      at org.apache.hadoop.hbase.zookeeper.ZKTableStateClientSideReader.getTableState(ZKTableStateClientSideReader.java:186) 
      at org.apache.hadoop.hbase.zookeeper.ZKTableStateClientSideReader.isDisabledTable(ZKTableStateClientSideReader.java:60) 
      at org.apache.hadoop.hbase.client.ZooKeeperRegistry.isTableOnlineState(ZooKeeperRegistry.java:108) 
      ... 29 more 
  </code></pre>
  
  <p>In some cases </p>
  
  <pre><code>   WARN  ZKUtil:484 - hconnection-0x792dd4040x0, quorum=Megatron:2222, baseZNode=/hbase Unable to set watcher on znode (/hbase/hbaseid)
  org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
      at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1045)
      at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:222)
      at org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:481)
      at org.apache.hadoop.hbase.zookeeper.ZKClusterId.readClusterIdZNode(ZKClusterId.java:65)
      at org.apache.hadoop.hbase.client.ZooKeeperRegistry.getCat org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
   clusterId(ZooKeeperRegistry.java:86)
      at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.retrieveClusterId(ConnectionManager.java:833)
      at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.&lt;init&gt;(ConnectionManager.java:623)
      at sun.reflect.GeneratedConstructorAccessor530.newInstance(Unknown Source)
      at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
      at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
      at org.apache.hadoop.hbase.client.ConnectionFactory.createConnection(ConnectionFactory.java:238)
      at org.apache.hadoop.hbase.client.ConnectionFactory.createConnection(ConnectionFactory.java:218)
      at org.apache.hadoop.hbase.client.ConnectionFactory.createConnection(ConnectionFactory.java:119)
      at org.apache.hadoop.hbase.mapreduce.TableInputFormat.initialize(TableInputFormat.java:183)
      at org.apache.hadoop.hbase.mapreduce.TableInputFormatBase.getSplits(TableInputFormatBase.java:230)
      at org.apache.hadoop.hbase.mapreduce.TableInputFormat.getSplits(TableInputFormat.java:237)
      at org.apache.spark.rdd.NewHadoopRDD.getPartitions(NewHadoopRDD.scala:95)
      at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:219)
      at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:217)
      at scala.Option.getOrElse(Option.scala:120)
      at org.apache.spark.rdd.RDD.partitions(RDD.scala:217)
      at org.apache.spark.rdd.MapPartitionsRDD.getPartitions(MapPartitionsRDD.scala:32)
      at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:219)
      at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:217)
      at scala.Option.getOrElse(Option.scala:120)
      at org.apache.spark.rdd.RDD.partitions(RDD.scala:217)
      at org.apache.spark.SparkContext.runJob(SparkContext.scala:1511)
      at org.apache.spark.rdd.RDD.count(RDD.scala:1006)
      at  org.apache.spark.api.java.JavaRDDLike$class.count(JavaRDDLike.scala:412)
      at org.apache.spark.api.java.JavaRDD.count(JavaRDD.scala:32)
  </code></pre>
  
  <p>But error occurred first when try to put something into hbase.
  Second error when try to read from hbase.</p>