java.nio.file.FileSystemException: /path/deployments: Too many open files

Issue

• Getting FileSystemException for Too many open files.

ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 2) WFLYDS0012: Scan of /opt/jboss/jboss-eap-7.1/standalone/deployments threw Exception: java.lang.RuntimeException: WFLYDS0032: Failed to list files in directory /opt/jboss/jboss-eap-7.1/standalone/deployments. Check that the contents of the directory are readable.
    at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService.listDirectoryChildren(FileSystemDeploymentService.java:1361)
    at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService.scanDirectory(FileSystemDeploymentService.java:846)
    at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService.scan(FileSystemDeploymentService.java:598)
    at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService.scan(FileSystemDeploymentService.java:493)
    at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService$DeploymentScanRunnable.run(FileSystemDeploymentService.java:255)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:750)
    at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.nio.file.FileSystemException: /opt/jboss/jboss-eap-7.1/standalone/deployments: Too many open files
    at sun.nio.fs.UnixException.translateToIOException(UnixException.java:91)
    at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
    at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
    at sun.nio.fs.UnixFileSystemProvider.newDirectoryStream(UnixFileSystemProvider.java:427)
    at java.nio.file.Files.newDirectoryStream(Files.java:589)
    at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService.listDirectoryChildren(FileSystemDeploymentService.java:1356)
    ... 12 more