Critical Description
Since the client had a temporary network failure, After it recovered.
I found my client thread was blocked.
Looks below stack and logs, It said that we use a invalid CatalogTracker in function "tableExists".
Block stack:
"WriteHbaseThread33" prio=10 tid=0x00007f76bc27a800 nid=0x2540 in Object.wait() [0x00007f76af4f3000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMeta(CatalogTracker.java:331)
- locked <0x00007f7a67817c98> (a java.util.concurrent.atomic.AtomicBoolean)
at org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMetaServerConnectionDefault(CatalogTracker.java:366)
at org.apache.hadoop.hbase.catalog.MetaReader.tableExists(MetaReader.java:427)
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:164)
at com.huawei.hdi.hbase.HbaseFileOperate.checkHtableState(Unknown Source)
at com.huawei.hdi.hbase.HbaseReOper.reCreateHtable(Unknown Source) - locked <0x00007f7a4c5dc578> (a com.huawei.hdi.hbase.HbaseReOper)
at com.huawei.hdi.hbase.HbaseFileOperate.writeToHbase(Unknown Source)
at com.huawei.hdi.hbase.WriteHbaseThread.run(Unknown Source)
In ZooKeeperNodeTracker, We don't throw the KeeperException to high level.
So in CatalogTracker level, We think ZooKeeperNodeTracker start success and
continue to process .
[WriteHbaseThread33]2011-12-16 17:07:33,153[WARN ] | hconnection-0x334129cf6890051-0x334129cf6890051-0x334129cf6890051 Unable to get data of znode /hbase/root-region-server | org.apache.hadoop.hbase.zookeeper.ZKUtil.getDataAndWatch(ZKUtil.java:557)
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/root-region-server
at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:931)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.getDataAndWatch(ZKUtil.java:549)
at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.start(ZooKeeperNodeTracker.java:73)
at org.apache.hadoop.hbase.catalog.CatalogTracker.start(CatalogTracker.java:136)
at org.apache.hadoop.hbase.client.HBaseAdmin.getCatalogTracker(HBaseAdmin.java:111)
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:162)
at com.huawei.hdi.hbase.HbaseFileOperate.checkHtableState(Unknown Source)
at com.huawei.hdi.hbase.HbaseReOper.reCreateHtable(Unknown Source)
at com.huawei.hdi.hbase.HbaseFileOperate.writeToHbase(Unknown Source)
at com.huawei.hdi.hbase.WriteHbaseThread.run(Unknown Source)
[WriteHbaseThread33]2011-12-16 17:07:33,361[ERROR] | hconnection-0x334129cf6890051-0x334129cf6890051-0x334129cf6890051 Received unexpected KeeperException, re-throwing exception | org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.keeperException(ZooKeeperWatcher.java:385)
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/root-region-server
at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:931)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.getDataAndWatch(ZKUtil.java:549)
at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.start(ZooKeeperNodeTracker.java:73)
at org.apache.hadoop.hbase.catalog.CatalogTracker.start(CatalogTracker.java:136)
at org.apache.hadoop.hbase.client.HBaseAdmin.getCatalogTracker(HBaseAdmin.java:111)
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:162)
at com.huawei.hdi.hbase.HbaseFileOperate.checkHtableState(Unknown Source)
at com.huawei.hdi.hbase.HbaseReOper.reCreateHtable(Unknown Source)
at com.huawei.hdi.hbase.HbaseFileOperate.writeToHbase(Unknown Source)
at com.huawei.hdi.hbase.WriteHbaseThread.run(Unknown Source)
[WriteHbaseThread33]2011-12-16 17:07:33,361[FATAL] | Unexpected exception during initialization, aborting | org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.abort(HConnectionManager.java:1351)
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/root-region-server
at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:931)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.getDataAndWatch(ZKUtil.java:549)
at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.start(ZooKeeperNodeTracker.java:73)
at org.apache.hadoop.hbase.catalog.CatalogTracker.start(CatalogTracker.java:136)
at org.apache.hadoop.hbase.client.HBaseAdmin.getCatalogTracker(HBaseAdmin.java:111)
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:162)
at com.huawei.hdi.hbase.HbaseFileOperate.checkHtableState(Unknown Source)
at com.huawei.hdi.hbase.HbaseReOper.reCreateHtable(Unknown Source)
at com.huawei.hdi.hbase.HbaseFileOperate.writeToHbase(Unknown Source)
at com.huawei.hdi.hbase.WriteHbaseThread.run(Unknown Source)