On 1 Oct 2012, at 14:59, Mouradk <mourad...@googlemail.com> wrote: > Hello, > > This is my first post so apologies if I am breaking some etiquette. > > I am not an expert on Hbase and have been flaying through threads of Hbase > remote connection but with no luck solving my problem. > > I am running a Hbase/Hadoop single cluster on an EC2 instance (Ubuntu 10.4). > I am also running a servlet on a tomcat6 server in another ec2 instance. The > plan is for the servlet to write and read to the remote Hbase instance. The > servlet is running a context listener with some java routines > (ServletContextListener). > > Now if I run the java project as a runnable jar instead of a servlet all is > fine. It connects to Hbase and writes/reads from table. But on tomcat6 it > just freezes when attempting to connect to the Hbase instance. > > 2012-10-01 11:11:40,751 [Timer-4] INFO > com.myApp.foundation.access.HBaseHandler initialise(..) - Initialisation > HbaseHandler configuration ... > 2012-10-01 11:11:40,763 [Timer-4] DEBUG org.apache.hadoop.conf.Configuration > <init>(..) - java.io.IOException: config() > at org.apache.hadoop.conf.Configuration.<init>(Configuration.java:211) > at org.apache.hadoop.conf.Configuration.<init>(Configuration.java:198) > at > org.apache.hadoop.hbase.HBaseConfiguration.<init>(HBaseConfiguration.java:33) > at > com.myApp.foundation.access.HBaseHandler.initialise(HBaseHandler.java:507) > at com.myApp.foundation.access.HBaseHandler.<init>(HBaseHandler.java:53) > at > com.myApp.foundation.access.HBaseHandler.getInstance(HBaseHandler.java:500) > at com.myApp.foundation.hbase.StorableRow.<clinit>(StorableRow.java:40) > at com.myApp.foundation.entities.Article.storeToHbase(Article.java:257) > at > com.myApp.task.impl.HBaseArticlePersisterTask.process(HBaseArticlePersisterTask.java:101) > at com.myApp.foundation.task.QueueTask.performTask(QueueTask.java:101) > at > com.myApp.runner.impl.HBasePersisterRunner$1.run(HBasePersisterRunner.java:46) > at java.util.TimerThread.mainLoop(Timer.java:512) > at java.util.TimerThread.run(Timer.java:462)
I don't know HBase, but I'd read this stack as being caused by a config error. > 2012-10-01 11:11:40,803 [Timer-4] INFO > com.myApp.foundation.access.HBaseHandler initialise(..) - Config resource > zookeeper.quorum: ip-10-10-10-10.eu-west-1.compute.internal > > 2012-10-01 11:11:40,803 [Timer-4] INFO > com.myApp.foundation.access.HBaseHandler initialise(..) - Config resource > zookeeper.clientPort: 2181 > > 2012-10-01 11:11:40,804 [Timer-4] INFO > com.myApp.foundation.access.HBaseHandler initialise(..) - Config resource > hbase.master.info.port: 60010 > > 2012-10-01 11:11:40,804 [Timer-4] INFO > com.myApp.foundation.access.HBaseHandler initialise(..) - Config resource > hbase.master.info.bindAddress: ip-10-10-10-10.eu-west-1.compute.internal > I can telnet the HBase instance. In the servlet I included the > hbase-site.xml. But as you can see from the log, the zookkeeper.quorum is > getting picked up as well as the port number. All necessary ports are open on > the Hbase instance. What's in the config before those details? > Something is telling me tomcat6 policy configuration is to blame. If you have the Security Manager turned on, turn it off - then you'll know pretty quickly if the policy is a) effective and b) wrong. > But I don't see anything in the catalina logs. Are there any other logs I am > missing or could guide me to the right logs? > > Has someone experienced the same problem? Doesn't look like a Tomcat problem. Either a HBase or OS config issue. Have you opened the necessary firewall ports, for example? p > Many thanks in advance. > > Mourad --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
