I am trying to load a data from CSV File into HBASE using importtsv tool. I have set up a cluster of 3 machines.
This is my hbase-site.xml file
<configuration>
<property>
<name>hbase.rootdir</name>
<value>hdfs://ec2-54-190-103-64.us-west-2.compute.amazonaws.com:9000/hbase</value>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>ec2-54-203-95-235.us-west-2.compute.amazonaws.com</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2222</value>
</property>
<property>
<name>hbase.zookeeper.property.dataDir</name>
<value>/home/ubuntu/zookeeper</value>
<description>Property from ZooKeeper's config zoo.cfg.
The directory where the snapshot is stored.
</description>
</property>
</configuration>
When i start and run jps. Under Master Node i see HMaster and under datanodes i see Hquorumpeer and Hregionserver
When i try to load data i get following error
INFO zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
14/08/11 07:41:28 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
14/08/11 07:41:28 WARN zookeeper.RecoverableZooKeeper: Possibly transient ZooKeeper exception: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase
14/08/11 07:41:28 INFO util.RetryCounter: Sleeping 8000ms before retry #3...
14/08/11 07:41:29 INFO zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
Not sure what is the issue with zookeeper. Thanks in advance
You need to add the following property in your hbase-site.xml file(both master and slaves)
<property>
<name>hbase.zookeeper.property.maxClientCnxns</name>
<value>1000</value>
</property>
Related
I am a newbie in Hadoop trying to install Hbase in pseudo distributed mode, version hbase-0.98.10.1-hadoop1-bin, with Hadoop 2.5.2 . I am not able to add a table.
Following error continues when I try to create a table :
client.HConnectionManager$HConnectionImplementation: The node /hbase is not in ZooKeeper. It should have been written by the master. Check the value configured in 'zookeeper.znode.parent'. There could be a mismatch with the one configured in the master.
It finally after displaying the error many times (about 50 times) gives the final error as:
ERROR: The node /hbase is not in ZooKeeper. It should have been written by the master. Check the value configured in 'zookeeper.znode.parent'. There could be a mismatch with the one configured in the master.
Latest entry of log file is:
2015-02-23 16:38:39,456 ERROR [main] master.HMasterCommandLine: Master exiting
java.lang.RuntimeException: Failed construction of Master: class org.apache.hadoop.hbase.master.HMaster
at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:3017)
at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:186)
at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:135)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:126)
at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:3031)
Caused by: org.apache.hadoop.ipc.RemoteException: Server IPC version 9 cannot communicate with client version 4
at org.apache.hadoop.ipc.Client.call(Client.java:1113)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229)
at com.sun.proxy.$Proxy8.getProtocolVersion(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:622)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:85)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:62)
at com.sun.proxy.$Proxy8.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.checkVersion(RPC.java:422)
at org.apache.hadoop.hdfs.DFSClient.createNamenode(DFSClient.java:183)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:281)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:245)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:100)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1446)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:67)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1464)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:263)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:187)
at org.apache.hadoop.hbase.util.FSUtils.getRootDir(FSUtils.java:942)
at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:533)
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:534)
at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:3012)
... 5 more
Hdbase-site Configuration file:
<configuration>
<property>
<name>hbase.rootdir</name>
<value>hdfs://master:54310/hbase</value>
</property>
<property>
<name>hbase.zookeeper.property.dataDir</name>
<value>/usr/local/Hbase/zookeeper</value>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>
</configuration>
Output of jps is:
7584 Main
8532 HQuorumPeer
4435 SecondaryNameNode
4880 NodeManager
4269 DataNode
7735 FsShell
4592 ResourceManager
4141 NameNode
9128 Jps
3147 ZKServerTool
3651 HRegionServer
2992 HMaster
What could be the possible error? Any help is appreciated.
It Just Worked after using a different hbase version. I was using hbase-0.98.10.1-hadoop1-bin, which was not compatible with my hadoop 2.5.2, so I changed hbase version to hbase-X.XX.XX.X-hadoop2-bin (which was compatible for hadoop 2.X ) and followed Apache's installation steps.
Thank you all..
It means the zookeeper has not the node '/hbase',so create a node name '/hbase' in zookeeper.go to the zkCli and run the 'create /hbase "" ' command.
<configuration>
<property>
<name>hbase.rootdir</name>
<value>hdfs://master:54310/hbase</value>
</property>
<property>
<name>hbase.zookeeper.property.dataDir</name>
<value>/usr/local/Hbase/zookeeper</value>
</property>
<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2181</value>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>
<property>
<name>zookeeper.znode.parent</name>
<value>/hbase-unsecure</value>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>localhost</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>localhost</value>
</property>
<property>
<name>hbase.master</name>
<value>hadoop-master:60000</value>
</property>
</configuration>
make sure zookeeper should be start and dataDir should be exist.
i use it in Talend，when i add hbase connnection in the hadoop cluster,
the step 2/2, i choose repository in hadoop cluster,when i write server and port(default 2181),point the button 'Check',
the system prompt：
Connection failure. You must change the Database Settings.
Caused by: org.apache.hadoop.hbase.MasterNotRunningException: The node /hbase is not in ZooKeeper. It should have been written by the master. Check the value configured in 'zookeeper.znode.parent'. There could be a mismatch with the one configured in the master
then,you need add hadoop properties,click the button and add to the property
zookeeper.znode.parent=/hbase-unsecure
click ok,then you click 'Check',the system prompt successfull.
Above answer is correct but a bit more lengthy. I was able to solve this problem by just adding following property in hbase-site.xml ( used hbase-1.2.1 )
<property>
<name>hbase.zookeeper.property.dataDir</name>
<value>/mnt/data/zookeeper</value>
</property>
I didnt had to create /mnt/data/zookeeper either. Since I was using HBASE as a standalone I didnt had to run Zookeeper infact it gave an error when I did so
the complete hbase-site.xml configuration file looks like
<configuration>
<property>
<name>hbase.rootdir</name>
<value>file:///mnt/data/hbase</value>
</property>
<property>
<name>hbase.zookeeper.property.dataDir</name>
<value>/mnt/data/zookeeper</value>
</property>
</configuration>
Environment : Ubuntu 14.04 , hadoop-2.2.0 , hbase-0.98.7
when i start hadoop and hbase(single node mode), both all success (I also check the website 8088 for hadoop, 60010 for hbase)
jps
4507 SecondaryNameNode
5350 HRegionServer
4197 NameNode
4795 NodeManager
3948 QuorumPeerMain
5209 HMaster
4678 ResourceManager
5831 Jps
4310 DataNode
but when i check hbase-hadoop-master-localhost.log, i found a information following
2014-10-23 14:16:11,392 INFO [main-SendThread(localhost:2181)] zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
2014-10-23 14:16:11,426 INFO [main-SendThread(localhost:2181)] zookeeper.ClientCnxn: Socket connection established to localhost/127.0.0.1:2181, initiating session
i have google lot of website for that unknown error problem, but i can't solve this problem...
Following is my hadoop and hbase configuration
Hadoop :
salves content : localhost
core-site.xml
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:8020</value>
</property>
</configuration>
yarn-site.xml
<configuration>
<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>localhost:9001</value>
<description>host is the hostname of the resource manager and
port is the port on which the NodeManagers contact the Resource Manager.
</description>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address</name>
<value>localhost:9002</value>
<description>host is the hostname of the resourcemanager and port is the port
on which the Applications in the cluster talk to the Resource Manager.
</description>
</property>
<property>
<name>yarn.resourcemanager.scheduler.class</name>
<value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler</value>
<description>In case you do not want to use the default scheduler</description>
</property>
<property>
<name>yarn.resourcemanager.address</name>
<value>localhost:9003</value>
<description>the host is the hostname of the ResourceManager and the port is the port on
which the clients can talk to the Resource Manager. </description>
</property>
<property>
<name>yarn.nodemanager.local-dirs</name>
<value></value>
<description>the local directories used by the nodemanager</description>
</property>
<property>
<name>yarn.nodemanager.address</name>
<value>localhost:9004</value>
<description>the nodemanagers bind to this port</description>
</property>
<property>
<name>yarn.nodemanager.resource.memory-mb</name>
<value>10240</value>
<description>the amount of memory on the NodeManager in GB</description>
</property>
<property>
<name>yarn.nodemanager.remote-app-log-dir</name>
<value>/app-logs</value>
<description>directory on hdfs where the application logs are moved to </description>
</property>
<property>
<name>yarn.nodemanager.log-dirs</name>
<value></value>
<description>the directories used by Nodemanagers as log directories</description>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
<description>shuffle service that needs to be set for Map Reduce to run </description>
</property>
</configuration>
Hbase:
hbase-env.sh :
..
export JAVA_HOME="/usr/lib/jvm/java-7-oracle"
..
export HBASE_MANAGES_ZK=true
..
hbase-site.xml
<configuration>
<property>
<name>hbase.rootdir</name>
<value>hdfs://localhost:8020/hbase</value>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>
<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2181</value>
</property>
</configuration>
regionserver content : localhost
my /etc/hosts content:
127.0.0.1 localhost
#127.0.1.1 localhost
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
I try lots of methods to solve it, but all fail, please help me to solve it, i really need to know how to solve.
Originally, i run a mapreuce program and when map 67% reduce 0%, it print out some INFO and some of INFO is following:
14/10/23 15:50:41 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=localhost:2181 sessionTimeout=60000 watcher=org.apache.hadoop.hbase.client.HConnectionManager$ClientZKWatcher#ce1472
14/10/23 15:50:41 INFO zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
14/10/23 15:50:41 INFO zookeeper.ClientCnxn: Socket connection established to localhost/127.0.0.1:2181, initiating session
14/10/23 15:50:41 INFO zookeeper.ClientCnxn: Session establishment complete on server localhost/127.0.0.1:2181, sessionid = 0x1493be510380007, negotiated timeout = 40000
14/10/23 15:50:43 INFO mapred.LocalJobRunner: map > sort
14/10/23 15:50:46 INFO mapred.LocalJobRunner: map > sort
then it crash.. I think program maybe in dead lock and that is what i want to solve zookeeper problem above.
If want another configuration file i set in hadoop or hbase or others, just tell me, i'll post up.
thanks!
I don't think zookeeper is your problem. You should look at your other logs for more information about your map/reduce job status. Check the datanode and namenode logs for errors along with the yarn log messages through the yarn job tracker ui.
ZooKeeper Messages
Those messages are from zookeeper trying to connect with the Zookeeper sasl client. If sasl is not configured the client will still be able to connect but the connection won't be authenticated.
Error message comes from this file
ZooKeeperSaslClient.java
150 // The user did not override the default context. It might be that they just don't intend to use SASL,
151 // so log at INFO, not WARN, since they don't expect any SASL-related information.
152 String msg = "Will not attempt to authenticate using SASL ";
153 if (runtimeException != null) {
154 msg += "(" + runtimeException + ")";
155 } else {
156 msg += "(unknown error)";
157 }
158 this.configStatus = msg;
159 this.isSASLConfigured = false;
160 }
If you want to get rid of the error you will have to configure zookeeper to use sasl. Sorry don't have any experience with configuration sasl for zookeeper.
ZooKeeper SASL Configuration
Add follwing properties in hbase-site.xml file
<property>
<name>hbase.zookeeper.quorum</name>
<value>192.168.56.101</value> #this is my server ip
</property>
<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2181</value>
</property>
restart ./start-hbase.sh
This is how I solved it - after I tried including hbase-site.xml in classpath and giving the zookeeper quorum value as -Dhbase.zookeeper.quorum - and they did not work.
I copied hbase-site.xml to the same folder as my jar and then did
jar uf myjar.jar hbase-site.xml
And then I ran hadoop jar myjar.jar Blah
This fixed the problem
I have a single node hadoop and have installed hbase also on my ubuntu 12.04. Now i want to install titan over hbase. I have setup hadoop-1.0.3 and hbase-0.94.18 and titan/hbase-0.4.2
I have added a user mnit.My /usr/local/ folder contains hadoop2 , hbase2, titan2 .First i start my hadoop using command bin/start-all.sh and then i start hbase using command bin/start-hbase.sh . after it when i do jps i found the following :
mnit#aman:/usr/local$ jps
9921 DataNode
11386 HRegionServer
11041 HQuorumPeer
11537 Jps
11115 HMaster
10153 SecondaryNameNode
10252 JobTracker
9691 NameNode
10483 TaskTracker
now i start gremlin.sh in titan2 using command bin/gremlin.sh .
i applied the following commands
mnit#aman:/usr/local/titan2$ bin/gremlin.sh
gremlin> conf = new BaseConfiguration();
==>org.apache.commons.configuration.BaseConfiguration#19288c2
gremlin> conf.setProperty("storage.backend","hbase");
==>null
gremlin> conf.setProperty("storage.hostname","127.0.0.1");
==>null
gremlin> g = TitanFactory.open(conf);
WARN org.apache.zookeeper.ClientCnxn - Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
WARN org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper - Possibly transient ZooKeeper exception: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
WARN org.apache.zookeeper.ClientCnxn - Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
When i searched over this problem i found that there is a file named pom.xml but the titan that i have downloaded does not contain pom.xml. please tell me if this is a problem due to pom.xml. or i am doing something wrong or there is some other issue.
Thanks in advance
zk is managed by hbase in my system. i have added the following line in bin/hbase-env.sh
export HBASE_MANAGES_ZK=true
the content of my hbase-site.xml is as follows :
<configuration>
<property>
<name>hbase.rootdir</name>
<value>hdfs://localhost:54310/user/hbase</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>
<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2222</value>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>localhost</value>
</property>
<property>
<name>hbase.zookeeper.property.datadir</name>
<value>/app/hadoop/tmp/zookeeper</value>
</property>
</configuration>
Your Titan and HBase configurations appear to be inconsistent. Your hbase-site.xml overrides the default ZK port (2181) to 2222, but it seems you haven't told Titan to use this non-default ZK port by setting storage.port in your Titan config file. Naturally, they can't talk to each other in that state. This doesn't have anything to do with pom.xml.
By the way, please don't simultaneously crosspost to SO and the aureliusgraphs Google Group. They're both good venues with slightly different purposes, but you seem to have just copy-pasted between this SO question and your subjectless thread on the aureliusgraphs list.
While running Pig Script which is inserting data into HBase i got following error.
2013-10-25 14:57:03,147 [main-SendThread(localhost:2181)] INFO
org.apache.zookeeper.ClientCnxn - Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
2013-10-25 14:57:03,147 [main-SendThread(localhost:2181)] INFO org.apache.zookeeper.ClientCnxn - Socket connection established to localhost/127.0.0.1:2181, initiating session
2013-10-25 14:57:03,169 [main-SendThread(localhost:2181)] INFO org.apache.zookeeper.ClientCnxn - Session establishment complete on server localhost/127.0.0.1:2181, sessionid = 0x41ead7bb150092, negotiated timeout = 180000
Also when i see slave logs it says that unable to establish connection to master, But master says that connection is established successfully. Below are the logs of both:
Master Log :
zookeeper.ZooKeeper: Initiating client connection, connectString=slave:2181,hadoop-master:2181,ubuntu:2181 sessionTimeout=180000 watcher=hconnection
13/10/24 19:51:56 INFO zookeeper.ClientCnxn: Opening socket connection to server slave:2181. Will not attempt to authenticate using SASL (unknown error)
13/10/24 19:51:56 INFO zookeeper.RecoverableZooKeeper: The identifier of this process is 104744#hadoop-master
13/10/24 19:51:56 INFO zookeeper.ClientCnxn: Socket connection established to slave:2181, initiating session
13/10/24 19:51:56 INFO zookeeper.ClientCnxn: Session establishment complete on server slave:2181, sessionid = 0x141ead77c250002, negotiated timeout = 180000
Slave Log
2013-10-24 19:51:32,174 INFO org.apache.zookeeper.server.quorum.FastLeaderElection: New election. My id = 1, proposed zxid=0x80000002a
2013-10-24 19:51:32,180 WARN org.apache.zookeeper.server.quorum.QuorumCnxManager: Cannot open channel to 0 at election address hadoop-master:3888
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
Below are my configurations:
hbase-env.sh
export HBASE_MANAGES_ZK=true
hbase-site.xml
<configuration>
<property>
<name>hbase.master</name>
<value>hadoop-master:60000</value>
<description>
The host and port that the HBase master runs at.
A value of 'local' runs the master and a regionserver in a single process.
</description>
</property>
<property>
<name>hbase.rootdir</name>
<value>hdfs://hadoop-master:54310/hbase</value>
<description>
The directory shared by RegionServers.
</description>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
<description>
The mode the cluster will be in. Possible values are
false: standalone and pseudo-distributed setups with managed Zookeeper
true: fully-distributed with unmanaged Zookeeper Quorum (see hbase-env.sh)
</description>
</property>
<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2181</value>
<description>
Property from ZooKeeper's config zoo.cfg.
The port at which the clients will connect.
</description>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>hadoop-master,slave,ubuntu</value>
<description>
Comma separated list of servers in the ZooKeeper Quorum.
For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com".
By default this is set to localhost for local and pseudo-distributed modes
of operation. For a fully-distributed setup, this should be set to a full
list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set in hbase-env.sh
this is the list of servers which we will start/stop ZooKeeper on.
</description>
</property>
<property>
<name>dfs.replication</name>
<value>2</value>
<description>
Default block replication.
The actual number of replications can be specified when the file is created.
The default is used if replication is not specified in create time.
</description>
</property>
</configuration>
By entering command jps i get following output:
At Master:
104744 HMaster
91841 JobTracker
80184 TaskTracker
91475 DataNode
91222 NameNode
105062 HRegionServer
91747 SecondaryNameNode
104666 HQuorumPeer
At Slave:
11533 HQuorumPeer
2444 SecondaryNameNode
5970 TaskTracker
11756 HRegionServer
This is probably an issue with your HBase config not being on the classpath when running the Pig script. One thing you can try is to set the zookeeper connection settings in the Pig script to see if it connects to the correct instance. If it does, you can add the HBase config to the classpath before launching your script.
I am getting some issues while trying to install Hbase in a 5 node hadoop cluster, the Hmaster and Hregionservers are not running and only Hquorumpeer deamon is running on all the 5 nodes. I am using the hadoop-0.20.2 and hbase-0.90.4 and hadoop is working fine.This is my hbase-site.xml :-
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2222</value>
<description>Property from ZooKeeper's config zoo.cfg.
The port at which the clients will connect.
</description>
</property>
<property>
<name>hbase.rootdir</name>
<value>hdfs://master:54310/hbase</value>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>
<property>
<name>dfs.replication</name>
<value>3</value>
</property>
<property>
<name>hbase.hregion.max.filesize</name>
<value>1048576</value>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>192.168.1.25,192.168.1.26,192.168.1.27,192.168.1.28,192.168.1.29</value>
</property>
<property>
<name>hbase.zookeeper.property.dataDir</name>
<value>/opt/data/zookeeper</value>
</property>
<property>
<name>hbase.zookeeper.property.initLimit</name>
<value>100</value>
</property>
<property>
<name>hbase.zookeeper.property.syncLimit</name>
<value>100</value>
</property>
<property>
<name>zookeeper.session.timeout</name>
<value>1200000</value>
</property>
</configuration>
this is my /etc/hosts file :-
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.1.23 adm001
192.168.1.25 master.poc.net master hbase-master
192.168.1.28 dn2.poc.net dn2
192.168.1.27 dn1.poc.net dn1
192.168.1.26 dn3.poc.net dn3
192.168.1.29 dn4.poc.net dn4
I am getting the following error while running Hbase in my master logs
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
2012-07-17 12:41:06,877 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server dn3.poc.net/192.168.1.26:2222
2012-07-17 12:41:06,878 WARN org.apache.zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:701)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
2012-07-17 12:41:07,499 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server dn2.poc.net/192.168.1.28:2222
2012-07-17 12:41:07,500 WARN org.apache.zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:701)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
2012-07-17 12:41:08,549 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server dn1.poc.net/192.168.1.27:2222
2012-07-17 12:41:08,550 INFO org.apache.zookeeper.ClientCnxn: Socket connection established to dn1.poc.net/192.168.1.27:2222, initiating session
2012-07-17 12:41:08,554 INFO org.apache.zookeeper.ClientCnxn: Unable to read additional data from server sessionid 0x0, likely server has closed socket, closing socket connection and attempting reconnect
2012-07-17 12:41:08,654 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server dn4.poc.net/192.168.1.29:2222
2012-07-17 12:41:08,755 INFO org.apache.zookeeper.ZooKeeper: Session: 0x0 closed
2012-07-17 12:41:08,756 ERROR org.apache.hadoop.hbase.master.HMasterCommandLine: Failed to start master
java.lang.RuntimeException: Failed construction of Master: class org.apache.hadoop.hbase.master.HMaster
at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:1064)
at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:142)
at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:102)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:76)
at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:1078)
Caused by: 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.exists(ZooKeeper.java:809)
at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:837)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.createAndFailSilent(ZKUtil.java:903)
at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeperWatcher.java:133)
at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:222)
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:525)
at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:1059)
I have copied the hadoop-core.jar and other neccesary jar files from hadoop lib folder.
open the port 2222 by executing the following command
iptables -A INPUT -p tcp --dport 2222 -j ACCEPT
This should solve your problem