Hi, all I am running kafka-web-console, I periodically getting such error and cause the UI down:
! @6kldaf9lj - Internal server error, for (GET) [/assets/images/zookeeper_small.gif] -> play.api.Application$$anon$1: Execution exception[[FileNotFoundException: /vagrant/kafka-web-console-master/target/scala-2.10/classes/public/images/zookeeper_small.gif (Too many open files)]] at play.api.Application$class.handleError(Application.scala:293) ~[play_2.10-2.2.1.jar:2.2.1] at play.api.DefaultApplication.handleError(Application.scala:399) [play_2.10-2.2.1.jar:2.2.1] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$12$$anonfun$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:165) [play_2.10-2.2.1.jar:2.2.1] at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$12$$anonfun$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:162) [play_2.10-2.2.1.jar:2.2.1] at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:33) [scala-library-2.10.2.jar:na] at scala.util.Failure$$anonfun$recover$1.apply(Try.scala:185) [scala-library-2.10.2.jar:na] Caused by: java.io.FileNotFoundException: /vagrant/kafka-web-console-master/target/scala-2.10/classes/public/images/zookeeper_small.gif (Too many open files) at java.io.FileInputStream.open(Native Method) ~[na:1.7.0_65] at java.io.FileInputStream.<init>(FileInputStream.java:146) ~[na:1.7.0_65] at java.io.FileInputStream.<init>(FileInputStream.java:101) ~[na:1.7.0_65] at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:90) ~[na:1.7.0_65] at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:188) ~[na:1.7.0_65] at java.net.URL.openStream(URL.java:1037) ~[na:1.7.0_65] [debug] application - Getting partition offsets for topic ui_test_topic_6 [warn] application - Could not connect to partition leader exemplary-birds.master:9092. Error message: Failed to open a socket. [debug] application - Getting partition offsets for topic ui_test_topic_5 [warn] application - Could not connect to partition leader exemplary-birds.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader harmful-jar.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader voluminous-mass.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader voluminous-mass.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader exemplary-birds.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader exemplary-birds.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader harmful-jar.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader harmful-jar.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader voluminous-mass.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader voluminous-mass.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader exemplary-birds.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader harmful-jar.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader exemplary-birds.master:9092. Error message: Failed to open a socket. [debug] application - Getting partition offsets for topic PofApiTest [warn] application - Could not connect to partition leader harmful-jar.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader voluminous-mass.master:9092. Error message: Failed to open a socket. [warn] application - Could not connect to partition leader exemplary-birds.master:9092. Error message: Failed to open a socket. [debug] application - Getting partition offsets for topic ui_test_topic_4 What that means too many files open, is that mean the insufficient local memory? thanks -- Alec Li