To avoid this please increase the open files limit of your OS. 'ulimit -n' would give you the current number (by default it is 1024 - most of the cases).
You can uncomment #ulimit -n 100000 (after uncommenting it would be : ulimit -n 100000 ) in the wso2server.sh file of wso2 products in order to increase the value. On Sun, Feb 9, 2014 at 12:02 PM, Chamila Wijayarathna <[email protected]>wrote: > Hello all, > I am working on "Infra Log Analyzer" intern project which uses BAM and > CEP. Here we uses 2 instances and BAM and CEP communicating with each other. > When I add these two into a remote server and ran it I am getting > following warning and error. > > [*2014-02-09 05:05:42,669] WARN > {org.apache.cassandra.thrift.CustomTThreadPoolServer} - Transport error > occurred during acceptance of message.* > *org.apache.thrift.transport.TTransportException: > java.net.SocketException: Too many open files* > * at > org.apache.cassandra.thrift.TCustomServerSocket.acceptImpl(TCustomServerSocket.java:103)* > * at > org.apache.cassandra.thrift.TCustomServerSocket.acceptImpl(TCustomServerSocket.java:39)* > * at > org.apache.thrift.transport.TServerTransport.accept(TServerTransport.java:31)* > * at > org.apache.cassandra.thrift.CustomTThreadPoolServer.serve(CustomTThreadPoolServer.java:100)* > * at > org.apache.cassandra.thrift.CassandraDaemon$ThriftServer.run(CassandraDaemon.java:213)* > *Caused by: java.net.SocketException: Too many open files* > * at java.net.PlainSocketImpl.socketAccept(Native Method)* > * at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:408)* > * at java.net.ServerSocket.implAccept(ServerSocket.java:462)* > * at java.net.ServerSocket.accept(ServerSocket.java:430)* > * at > org.apache.cassandra.thrift.TCustomServerSocket.acceptImpl(TCustomServerSocket.java:97)* > * ... 4 more* > *[2014-02-09 05:05:42,666] ERROR {org.apache.thrift.transport.TSocket} - > Could not configure socket.* > *java.net.SocketException: Too many open files* > * at java.net.Socket.createImpl(Socket.java:397)* > * at java.net.Socket.getImpl(Socket.java:460)* > * at java.net.Socket.setSoLinger(Socket.java:900)* > * at org.apache.thrift.transport.TSocket.initSocket(TSocket.java:116)* > * at org.apache.thrift.transport.TSocket.<init>(TSocket.java:107)* > * at > me.prettyprint.cassandra.connection.client.HThriftClient.open(HThriftClient.java:123)* > * at > me.prettyprint.cassandra.connection.client.HThriftClient.open(HThriftClient.java:26)* > * at > me.prettyprint.cassandra.connection.ConcurrentHClientPool.createClient(ConcurrentHClientPool.java:147)* > * at > me.prettyprint.cassandra.connection.ConcurrentHClientPool.<init>(ConcurrentHClientPool.java:53)* > * at > me.prettyprint.cassandra.connection.RoundRobinBalancingPolicy.createConnection(RoundRobinBalancingPolicy.java:67)* > * at > me.prettyprint.cassandra.connection.HConnectionManager.<init>(HConnectionManager.java:67)* > * at > me.prettyprint.cassandra.service.AbstractCluster.<init>(AbstractCluster.java:67)* > * at > me.prettyprint.cassandra.service.ThriftCluster.<init>(ThriftCluster.java:21)* > * at > org.wso2.carbon.bam.cassandra.data.archive.mapred.CassandraMapReduceRowDeletion$RowKeyMapper.setup(CassandraMapReduceRowDeletion.java:119)* > * at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142)* > * at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)* > * at org.apache.hadoop.mapred.MapTask.run(MapTask.java:369)* > * at > org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:211)* > > I get this when server runs for a while about 1.5 - 2 hours. I get the > same error in both BAM and CEP. > I didn't get this when I ran them on my local machine. > What is the reason for this? How can I avoid this? > > Thank You! > > -- > *Chamila Wijayarathna* > Engineering Intern, > WSO2 Inc. > > > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > > -- Thanks & regards, Nirmal Senior Software Engineer- Platform Technologies Team, WSO2 Inc. Mobile: +94715779733 Blog: http://nirmalfdo.blogspot.com/
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