HBase client is blocked forever ------------------------------- Key: HBASE-5060 URL: https://issues.apache.org/jira/browse/HBASE-5060 Project: HBase Issue Type: Bug Components: client Affects Versions: 0.90.4 Reporter: gaojinchao Priority: Critical Fix For: 0.90.5, 0.90.6
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) -- This message is automatically generated by JIRA. 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