I see “Too many open files” exception in logs, but I’m sure that my limit is now 150k. Should I increase it? What’s the reasonable limit of open files for cassandra?
On 3 gru 2014, at 15:02, Yuki Morishita <mor.y...@gmail.com> wrote: > As the exception indicates, nodetool just lost communication with the > Cassandra node and cannot print progress any further. > Check your system.log on the node, and see if your repair was > completed. If there is no error, then it should be fine. > > On Wed, Dec 3, 2014 at 5:08 AM, Rafał Furmański <rfurman...@opera.com> wrote: >> Hi All! >> >> We have a 8 nodes cluster in 2 DC (4 per DC, RF=3) running Cassandra 2.1.2 >> on Linux Debian Wheezy. >> I executed “nodetool repair” on one of the nodes, and this command returned >> following error: >> >> Exception occurred during clean-up. >> java.lang.reflect.UndeclaredThrowableException >> error: JMX connection closed. You should check server log for repair status >> of keyspace sync(Subsequent keyspaces are not going to be repaired). >> -- StackTrace -- >> java.io.IOException: JMX connection closed. You should check server log for >> repair status of keyspace sync(Subsequent keyspaces are not going to be >> repaired). >> at >> org.apache.cassandra.tools.RepairRunner.handleNotification(NodeProbe.java:1351) >> at >> javax.management.NotificationBroadcasterSupport.handleNotification(NotificationBroadcasterSupport.java:274) >> at >> javax.management.NotificationBroadcasterSupport$SendNotifJob.run(NotificationBroadcasterSupport.java:339) >> at >> javax.management.NotificationBroadcasterSupport$1.execute(NotificationBroadcasterSupport.java:324) >> at >> javax.management.NotificationBroadcasterSupport.sendNotification(NotificationBroadcasterSupport.java:247) >> at >> javax.management.remote.rmi.RMIConnector.sendNotification(RMIConnector.java:441) >> at >> javax.management.remote.rmi.RMIConnector.access$1100(RMIConnector.java:121) >> at >> javax.management.remote.rmi.RMIConnector$RMIClientCommunicatorAdmin.gotIOException(RMIConnector.java:1505) >> at >> javax.management.remote.rmi.RMIConnector$RMINotifClient.fetchNotifs(RMIConnector.java:1350) >> at >> com.sun.jmx.remote.internal.ClientNotifForwarder$NotifFetcher.fetchNotifs(ClientNotifForwarder.java:587) >> at >> com.sun.jmx.remote.internal.ClientNotifForwarder$NotifFetcher.doRun(ClientNotifForwarder.java:470) >> at >> com.sun.jmx.remote.internal.ClientNotifForwarder$NotifFetcher.run(ClientNotifForwarder.java:451) >> at >> com.sun.jmx.remote.internal.ClientNotifForwarder$LinearExecutor$1.run(ClientNotifForwarder.java:107) >> >> This error was followed by lots of “Lost Notification” messages. >> Node became unusable and I had to restart it. Is this an issue? >> >> Rafal > > > > -- > Yuki Morishita > t:yukim (http://twitter.com/yukim)
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