Hi, thanks for the quick reply.
> Date: Thu, 24 Feb 2011 16:04:09 +0100 > From: [email protected] > To: [email protected] > Subject: Re: How to close the LDAP client connection from ApacheDS > > On 2/24/11 3:24 PM, Ado Dao wrote: > > Hi, > > > > we have found following exception in the log file. A ware any known > > problems. > > > > > > NioSocketAcceptor-1 WARN util.DefaultExceptionMonitor| Unexpected exception. > > java.io.IOException: Too many open files > > at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method) > > at > > sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:145) > > at > > org.apache.mina.transport.socket.nio.NioSocketAcceptor.accept(NioSocketAcceptor.java:217) > > at > > org.apache.mina.transport.socket.nio.NioSocketAcceptor.accept(NioSocketAcceptor.java:48) > > at > > org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.processHandles(AbstractPollingIoAcceptor.java:481) > > at > > org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.run(AbstractPollingIoAcceptor.java:412) > > at > > org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64) > > at > > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > > at > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > > at java.lang.Thread.run(Thread.java:662) > > > > > > It looks like some ldap clients keep the connection to the apachds alive. > > Where are those log files coming from ? Which version of the application ? We use the ApacheDS 1.5.7 in an embedded version with a custom partition. The log files are from the log framework of ApacheDS. > > Also not that if you are on linux, the default number of handles you can > open is 1000, which is far too low for a LDAP server, assuming you might > have ten of thousands opened connections. Tune your system. I also agree you. But I suspect that the number of open connections is steadily increasing, because the error occurred after several days. After a restart the ldap server it was OK. It looks like some clients do not terminate the connection. Therefore, the question whether there is an option for the server, which terminates such open connections after a timeout. -- Ado
