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via nabble.com by Unknown author, 1 year ago
HBase is able to connect to ZooKeeper but the connection closes immediately. This could be a sign that the server has too many connections (30 is the default). Consider inspecting your ZK server logs for that error and then make sure you are reusing HBaseConfiguration as often as you can. See HTable's javadoc for more information.
via Google Groups by kaveh minooie, 2 years ago
HBase is able to connect to ZooKeeper but the connection closes immediately. This could Consider inspecting your ZK server logs for that error and then make sure you are reusing HBaseConfiguration as often as you can. See HTable's javadoc for more information.
org.apache.hadoop.hbase.ZooKeeperConnectionException: HBase 
is able to connect to ZooKeeper but the connection closes immediately. 
This could be a sign that the server has too many connections (30 is the 
default). Consider inspecting your ZK server logs for that error and 
then make sure you are reusing HBaseConfiguration as often as you can. 
See HTable's javadoc for more information.	at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.(ZooKeeperWatcher.java:155)	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getZooKeeperWatcher(HConnectionManager.java:1002)	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.setupZookeeperTrackers(HConnectionManager.java:304)	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.(HConnectionManager.java:295)	at org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:157)	at org.apache.hadoop.hbase.client.HBaseAdmin.(HBaseAdmin.java:90)	at org.apache.gora.hbase.store.HBaseStore.initialize(HBaseStore.java:108)