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Posts: 21
Registered: ‎04-15-2014
Accepted Solution

Zookeeper connection with Hbase

Hi, i'm importing data from oracle db to hbase with sqoop.
I used  sqoop line command, and all it's done.

 

sqoop import --connect jdbc:oracle:thin:@XXX:port/XXX --username XXX --password XXX --table XXX -m 1 --incremental lastmodified --last-value '2014-06-23' --check-column XXX --append --hbase-table XXX --column-family info --hbase-row-key XXX  --hbase-bulkload

 I tryed with oozie, and i have got this error in loop:

INFO zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181.
Will not attempt to authenticate using SASL (unknown error)
WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error,
closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused

 My cluster configuration is with 5 host:
master,slave1,slave2,slave3,

slave4

sqoop 1 client:
slave1,slave2,slave3,slave4

zookeeper server:
master,slave1,slave2

hbase server:
hbaserestserver -> master
hbasethriftserver -> master
master -> master
regionserver -> slave1,slave2,slave3,slave4

I have some doubt on my configuration:
if my configuration is all ok, my question is:
zookeeper server with localhost/127.0.0.1:2181 is correct to start?
because i've got only 3 zookeeper server and i think this is my problem.
 
And there is some SQOOP_CLASSPATH or HBASE_CLASSPATH to set? oozie don't initialize everything?

Thanks
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Posts: 1,825
Kudos: 406
Solutions: 292
Registered: ‎07-31-2013

Re: Zookeeper connection with Hbase

Since Oozie lacks knowledge of where your HBase configs lie, you will need to pass the client hbase-site.xml file (placed somewhere on HDFS, by copying from /etc/hbase/conf/hbase-site.xml on any HBase gateway node) via the <job-xml>…</job-xml> option.

Alternatively, try the below command instead (will not be sufficient for secured clusters, which need further properties), replacing zk-host1,zk-host2,zk-host3 with your actual 3 hosts appropriately:

sqoop import -Dhbase.zookeeper.quorum=zk-host1,zk-host2,zk-host3 --connect jdbc:oracle:thin:@XXX:port/XXX --username XXX --password XXX --table XXX -m 1 --incremental lastmodified --last-value '2014-06-23' --check-column XXX --append --hbase-table XXX --column-family info --hbase-row-key XXX --hbase-bulkload
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