Error in worker execution "Too many open files"

[marcosnobrega]

2014-02-06 14:02:13,885 [pool-2-thread-1] org.ourgrid.common.executor.generic.GenericExecutor ERROR: java.io.IOException: Cannot run program "./qemu-system-i386" (in directory "/etc/ourgrid/qemu/bin"): java.io.IOException: error=24, Too many open files
2014-02-06 14:02:13,897 [SP10] org.ourgrid.worker.communication.receiver.WorkerExecutionClientReceiver ERROR: [[email protected]/WORKER] A error ocurred while worker was creating the execution environment. Error: Command: OurVirt: Cannot run program "./qemu-system-i386" (in directory "/etc/ourgrid/qemu/bin"): java.io.IOException: error=24, Too many open files

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2014-02-06 14:02:09,139 [pool-2-thread-1] org.ourgrid.common.executor.generic.GenericExecutor WARN: java.io.IOException: Cannot run program "./qemu-img" (in directory "/etc/ourgrid/qemu/bin"): java.io.IOException: error=24, Too many open files
2014-02-06 14:02:09,153 [pool-2-thread-1] org.ourgrid.common.executor.generic.GenericExecutor ERROR: java.io.IOException: Cannot run program "./qemu-system-i386" (in directory "/etc/ourgrid/qemu/bin"): java.io.IOException: error=24, Too many open files
2014-02-06 14:02:09,163 [SP10] org.ourgrid.worker.communication.receiver.WorkerExecutionClientReceiver ERROR: [[email protected]/WORKER] A error ocurred while worker was creating the execution environment. Error: Command: OurVirt: Cannot run program "./qemu-system-i386" (in directory "/etc/ourgrid/qemu/bin"): java.io.IOException: error=24, Too many open files