Hi,
I tried to find out why my client always raised Failed to create /hbase
exception.
It's in the ZooKeeperWrapper.java.
I want to know why KeeperException or InterruptedException will raise.
Does ZK has any control to limit the create znode number?
(My concurrent client is just 5)
Thanks
Fleming
private boolean ensureExists(final String znode) {
try {
zooKeeper.create(znode, new byte[0],
Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
LOG.debug("Created ZNode " + znode);
return true;
} catch (KeeperException.NodeExistsException e) {
return true; // ok, move on.
} catch (KeeperException.NoNodeException e) {
return ensureParentExists(znode) && ensureExists(znode);
} catch (KeeperException e) {
LOG.warn("Failed to create " + znode +
" -- check quorum servers, currently=" + this.quorumServers, e);
} catch (InterruptedException e) {
LOG.warn("Failed to create " + znode +
" -- check quorum servers, currently=" + this.quorumServers, e);
}
return false;
}
WARN zookeeper.ZooKeeperWrapper: Failed to create /hbase -- check quorum
servers, currently=10.42.253.86:2181,10.42.253.182:2181,10.42.254.37:2181
org.apache.zookeeper.KeeperException$ConnectionLossException:
KeeperErrorCode = ConnectionLoss for /hbase
at
org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
at
org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:522)
at
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureExists(ZooKeeperWrapper.java:342)
at
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureParentExists(ZooKeeperWrapper.java:365)
at
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.checkOutOfSafeMode(ZooKeeperWrapper.java:478)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:846)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:515)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:524)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:528)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491)
at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:123)
at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:78)
at save2HBaseThread.putFRPF(save2HBaseThread.java:105)
at save2HBaseThread.run(save2HBaseThread.java:66)
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