Titan 0.4.3 on HDP 2 / HBase - can't open the titan db

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Chung Chen

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Feb 21, 2014, 10:11:01 PM2/21/14

to aureliu...@googlegroups.com

Hi,

My batchGraph program is running fine in my local HBase (hbase-0.94.16). But, we need to run it in a cluster installed with HDP2 (HBase 0.96). We are able to resolve the HBase issue per https://github.com/thinkaurelius/titan/issues/526. That is running GraphOfTheGodsFactory.load(g) is working fine. Unfortunately, the batchGraph program ran into the following issues in connecting to the same Titan/HBase:

Specifically, it failed on

TitanGraph graph = TitanFactory.open(configFile);

as enclosed below.

Can anyone shed some light on what could go wrong here and how to resolve the issues?

Thanks so much for all the help!

Chung

Enclosed:

0 [main] ERROR org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper - ZooKeeper exists failed after 3 retries

2 [main] ERROR org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher - hconnection-0x40dbf4b5 Received unexpected KeeperException, re-throwing exception

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:1041)

at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:200)

at org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:479)

at org.apache.hadoop.hbase.zookeeper.ZKClusterId.readClusterIdZNode(ZKClusterId.java:65)

at org.apache.hadoop.hbase.client.ZooKeeperRegistry.getClusterId(ZooKeeperRegistry.java:83)

at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.retrieveClusterId(HConnectionManager.java:794)

at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.<init>(HConnectionManager.java:627)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

at java.lang.reflect.Constructor.newInstance(Constructor.java:526)

at org.apache.hadoop.hbase.client.HConnectionManager.createConnection(HConnectionManager.java:381)

at org.apache.hadoop.hbase.client.HConnectionManager.createConnection(HConnectionManager.java:360)

at org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:244)

at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:182)

at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getAdminInterface(HBaseStoreManager.java:364)

at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureColumnFamilyExists(HBaseStoreManager.java:261)

at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.openDatabase(HBaseStoreManager.java:215)

at com.thinkaurelius.titan.diskstorage.Backend.getStore(Backend.java:231)

at com.thinkaurelius.titan.diskstorage.Backend.initialize(Backend.java:243)

at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.getBackend(GraphDatabaseConfiguration.java:1164)

at com.thinkaurelius.titan.graphdb.database.StandardTitanGraph.<init>(StandardTitanGraph.java:75)

at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:40)

at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:29)

at com.paypal.bds.datapipeline.titan.BatchGraphLoad.create(BatchGraphLoad.java:29)

at com.paypal.bds.datapipeline.titan.BatchGraphLoad.main(BatchGraphLoad.java:269)

15585 [main] ERROR org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper - ZooKeeper exists failed after 3 retries

15585 [main] ERROR org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher - catalogtracker-on-hconnection-0x40dbf4b5 Received unexpected KeeperException, re-throwing exception

org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/meta-region-server

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:1041)

at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:200)

at org.apache.hadoop.hbase.zookeeper.ZKUtil.watchAndCheckExists(ZKUtil.java:425)

at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.start(ZooKeeperNodeTracker.java:77)

at org.apache.hadoop.hbase.catalog.CatalogTracker.start(CatalogTracker.java:195)

at org.apache.hadoop.hbase.client.HBaseAdmin.getCatalogTracker(HBaseAdmin.java:220)

at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:268)

at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:284)

at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureTableExists(HBaseStoreManager.java:247)

at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureColumnFamilyExists(HBaseStoreManager.java:262)