Hi, Started getting below errors/exceptions. I have listed the resolution inline. Could you please see if I am headed right?
The below error basically says that there are no more threads can be created as the limit has reached. We have big index and I assume the threads are being created outside of jvm and could not be because of low ulimit setting of nproc (4096). It has been increased to 131072. This number can be found by ulimit -u java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:714) at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:950) at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1368) at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:214) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112) at org.apache.solr.common.cloud.SolrZkClient$3.process(SolrZkClient.java:268) at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522) at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498) The below error basically says that there are no more files can be opened as the limit has reached. It has been increased to 65536 from 4096. This number can be found by ulimit -Hn, ulimit -Sn java.io.IOException: Too many open files at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method) at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422) at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250) at org.eclipse.jetty.server.ServerConnector.accept(ServerConnector.java:382) at org.eclipse.jetty.server.AbstractConnector$Acceptor.run(AbstractConnector.java:593) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654) Thanks, Satya