When clients are > 1, then PE tries to run a mapreduce job to host the loading clients.
Is it possible that the client out in MR task is trying to connect to wrong location? Perhaps the HBase conf dir is not available to the running task? Have you seen http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/mapreduce/package-summary.html#package_description? Perhaps this will help? St.Ack On Fri, Jan 21, 2011 at 8:12 AM, Wojciech Langiewicz <[email protected]> wrote: > Hello > I have problem with running HBase performance tests from > org.apache.hadoop.hbase.PerformanceEvaluation package. I'm using version > from CDH3, > Tests are ok when argument nclients is 1, but in case of greater number, > after mappers reaching 100% I get this exception (I didn't test all tests, > but all of tested by me failed, 'scan' and 'randomRead' fail for sure): > > 11/01/21 17:05:19 INFO mapred.JobClient: Task Id : > attempt_201101211442_0005_m_000000_0, Status : FAILED > org.apache.hadoop.hbase.MasterNotRunningException > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getMaster(HConnectionManager.java:416) > at > org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:78) > at > org.apache.hadoop.hbase.PerformanceEvaluation$Test.testSetup(PerformanceEvaluation.java:745) > at > org.apache.hadoop.hbase.PerformanceEvaluation$Test.test(PerformanceEvaluation.java:764) > at > org.apache.hadoop.hbase.PerformanceEvaluation.runOneClient(PerformanceEvaluation.java:1097) > at > org.apache.hadoop.hbase.PerformanceEvaluation$EvaluationMapTask.map(PerformanceEvaluation.java:446) > at > org.apache.hadoop.hbase.PerformanceEvaluation$EvaluationMapTask.map(PerformanceEvaluation.java:399) > at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144) > at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:639) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:315) > at org.apache.hadoop.mapred.Child$4.run(Child.java:217) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:396) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1063) > at org.apache.hadoop.mapred.Child.main(Child.java:211) > > Do you have any ideas how to solve this? > > -- > Wojciech Langiewicz >
