Hi Luke, its a CentOS release 6.6 Server with a 2665 Mhz Dualcore CPU and 16 GB Ram.
I am using the binary package without changing tomcats memory settings. I just untared kylin, set the path to kylin home and started kylin. I deployed it on the NameNode of a HDP cluster, so there is the whole HDP Stack running on the the machine. I would prefer running Kylin on a single machine, but deploying it on the Namenode seemed to be the easiest way to get started with Kylin. Is it possible to run Kylin on a Single Machine "outside" the HDP Cluster, where no hadoop is preinstalled? I figured out that there are some other tomcat processes running on the Namenode. Maybe these processes have not been stopped correctly while i was playing with Kylin a few days ago.. And maybe they are now causing the memory leak Exception. So I think the best deployment for Kylin in our environment would be running Kylin on a single machine and not on the Name- or the Datanode, but i didnt found an installation guide yet. Kind regards Tobias 2015-04-29 14:10 GMT+02:00 Luke Han <[email protected]>: > Could you please let's know your server's spec? > > OS and version, CPU, Memory... > > Did you changed any setting about tomcat's memory? > > Is there any other application running on that machine? > > And, are you use our binary package or generated by yourself? > > Thanks. > > > Best Regards! > --------------------- > > Luke Han > > 2015-04-29 20:03 GMT+08:00 Tobias Bockrath <[email protected]>: > > > Yes I use http://host:7070/kylin/ > > > > The GUI with the Login screen is reachable for a few seconds, but then > > Tomcat is crashing completely and the GUI isn't reachable any more. > > > > > > > > > > > > > > > > 2015-04-29 11:05 GMT+02:00 Li Yang <[email protected]>: > > > > > The mentioned leak is about a dependency of Kylin: > metrics-core-3.0.1.jar > > > > > > Our deployment has the same log, so it's not critical, and shall not > > block > > > GUI from start up. > > > > > > What url have you tried? http://host:7070/kylin/ ? > > > > > > On Tue, Apr 28, 2015 at 6:01 PM, Tobias Bockrath <[email protected]> > > > wrote: > > > > > > > Hello, > > > > > > > > I deployed Kylin 0.7.1 Snapshot in a HDP 2.2 Cluster with 1 NameNode > > and > > > 2 > > > > DataNodes. I exported Kylin Home and started Kylin via kylin.sh > start. > > > > > > > > The Startup seems to be normal, but the Webinterface isn't reachable. > > > > > > > > So I checked the Tomcat logs. In the catalina log I found following > > > > Exception: > > > > > > > > > > > > > > > > Apr 28, 2015 10:48:18 AM > org.apache.catalina.core.AprLifecycleListener > > > > lifecycleEvent > > > > INFORMATION: The APR based Apache Tomcat Native library which allows > > > > optimal performance in production environments was not found on the > > > > java.library.path: > > > > > > > > > > > > > > :/usr/hdp/2.2.0.0-2041/hadoop/lib/native/Linux-amd64-64:/usr/hdp/2.2.0.0-2041/hadoop/lib/native > > > > Apr 28, 2015 10:48:19 AM org.apache.coyote.AbstractProtocol init > > > > INFORMATION: Initializing ProtocolHandler ["http-bio-7070"] > > > > Apr 28, 2015 10:48:19 AM org.apache.coyote.AbstractProtocol init > > > > INFORMATION: Initializing ProtocolHandler ["ajp-bio-9009"] > > > > Apr 28, 2015 10:48:19 AM org.apache.catalina.startup.Catalina load > > > > INFORMATION: Initialization processed in 1674 ms > > > > Apr 28, 2015 10:48:19 AM org.apache.catalina.core.StandardService > > > > startInternal > > > > INFORMATION: Starting service Catalina > > > > Apr 28, 2015 10:48:19 AM org.apache.catalina.core.StandardEngine > > > > startInternal > > > > INFORMATION: Starting Servlet Engine: Apache Tomcat/7.0.59 > > > > Apr 28, 2015 10:48:19 AM org.apache.catalina.startup.HostConfig > > deployWAR > > > > INFORMATION: Deploying web application archive > > > > /home/kylin/kylin-0.7.1/tomcat/webapps/kylin.war > > > > Apr 28, 2015 10:48:20 AM org.apache.catalina.loader.WebappClassLoader > > > > validateJarFile > > > > INFORMATION: > > > > > > > > > > > > > > validateJarFile(/home/kylin/kylin-0.7.1/tomcat/webapps/kylin/WEB-INF/lib/servlet-api-2.5.jar) > > > > - jar not loaded. See Servlet Spec 3.0, section 10.7.2. Offending > > class: > > > > javax/servlet/Servlet.class > > > > Apr 28, 2015 10:48:44 AM org.apache.catalina.startup.TaglibUriRule > body > > > > INFORMATION: TLD skipped. URI: urn:com:sun:jersey:api:view is already > > > > defined > > > > Apr 28, 2015 10:48:44 AM org.apache.catalina.startup.TaglibUriRule > body > > > > INFORMATION: TLD skipped. URI: urn:com:sun:jersey:api:view is already > > > > defined > > > > Apr 28, 2015 10:48:44 AM org.apache.catalina.startup.TaglibUriRule > body > > > > INFORMATION: TLD skipped. URI: urn:com:sun:jersey:api:view is already > > > > defined > > > > Apr 28, 2015 10:48:44 AM org.apache.catalina.startup.TaglibUriRule > body > > > > INFORMATION: TLD skipped. URI: urn:com:sun:jersey:api:view is already > > > > defined > > > > Apr 28, 2015 10:48:44 AM org.apache.catalina.startup.TaglibUriRule > body > > > > INFORMATION: TLD skipped. URI: urn:com:sun:jersey:api:view is already > > > > defined > > > > Apr 28, 2015 10:48:44 AM org.apache.catalina.startup.TaglibUriRule > body > > > > INFORMATION: TLD skipped. URI: urn:com:sun:jersey:api:view is already > > > > defined > > > > Apr 28, 2015 10:48:44 AM org.apache.catalina.startup.TaglibUriRule > body > > > > INFORMATION: TLD skipped. URI: urn:com:sun:jersey:api:view is already > > > > defined > > > > Apr 28, 2015 1:48:55 AM org.apache.catalina.startup.HostConfig > > deployWAR > > > > INFORMATION: Deployment of web application archive > > > > /home/kylin/kylin-0.7.1/tomcat/webapps/kylin.war has finished in > 36,259 > > > ms > > > > Apr 28, 2015 1:48:55 AM org.apache.coyote.AbstractProtocol start > > > > INFORMATION: Starting ProtocolHandler ["http-bio-7070"] > > > > Apr 28, 2015 1:48:55 AM org.apache.coyote.AbstractProtocol start > > > > INFORMATION: Starting ProtocolHandler ["ajp-bio-9009"] > > > > Apr 28, 2015 1:48:55 AM org.apache.catalina.startup.Catalina start > > > > INFORMATION: Server startup in 36417 ms > > > > Apr 28, 2015 1:48:57 AM org.apache.coyote.AbstractProtocol pause > > > > INFORMATION: Pausing ProtocolHandler ["http-bio-7070"] > > > > Apr 28, 2015 1:48:57 AM org.apache.coyote.AbstractProtocol pause > > > > INFORMATION: Pausing ProtocolHandler ["ajp-bio-9009"] > > > > Apr 28, 2015 1:48:57 AM org.apache.catalina.core.StandardService > > > > stopInternal > > > > INFORMATION: Stopping service Catalina > > > > Apr 28, 2015 1:48:57 AM org.apache.catalina.loader.WebappClassLoader > > > > clearReferencesThreads > > > > SCHWERWIEGEND: The web application [/kylin] appears to have started a > > > > thread named [Thread-5] but has failed to stop it. This is very > likely > > to > > > > create a memory leak. > > > > Apr 28, 2015 1:48:57 AM org.apache.catalina.loader.WebappClassLoader > > > > clearReferencesThreads > > > > SCHWERWIEGEND: The web application [/kylin] appears to have started a > > > > thread named [Thread-9] but has failed to stop it. This is very > likely > > to > > > > create a memory leak. > > > > Apr 28, 2015 1:48:57 AM org.apache.catalina.loader.WebappClassLoader > > > > checkThreadLocalMapForLeaks > > > > SCHWERWIEGEND: The web application [/kylin] created a ThreadLocal > with > > > key > > > > of type [com.codahale.metrics.ThreadLocalRandom$1] (value > > > > [com.codahale.metrics.ThreadLocalRandom$1@46d8c695]) and a value of > > type > > > > [com.codahale.metrics.ThreadLocalRandom] (value > > > > [com.codahale.metrics.ThreadLocalRandom@41d58489]) but failed to > > remove > > > it > > > > when the web application was stopped. Threads are going to be renewed > > > over > > > > time to try and avoid a probable memory leak. > > > > Apr 28, 2015 1:48:57 AM org.apache.catalina.loader.WebappClassLoader > > > > checkThreadLocalMapForLeaks > > > > SCHWERWIEGEND: The web application [/kylin] created a ThreadLocal > with > > > key > > > > of type [com.codahale.metrics.ThreadLocalRandom$1] (value > > > > [com.codahale.metrics.ThreadLocalRandom$1@46d8c695]) and a value of > > type > > > > [com.codahale.metrics.ThreadLocalRandom] (value > > > > [com.codahale.metrics.ThreadLocalRandom@28f06023]) but failed to > > remove > > > it > > > > when the web application was stopped. Threads are going to be renewed > > > over > > > > time to try and avoid a probable memory leak. > > > > Apr 28, 2015 1:48:57 AM org.apache.catalina.loader.WebappClassLoader > > > > checkThreadLocalMapForLeaks > > > > SCHWERWIEGEND: The web application [/kylin] created a ThreadLocal > with > > > key > > > > of type [com.codahale.metrics.ThreadLocalRandom$1] (value > > > > [com.codahale.metrics.ThreadLocalRandom$1@46d8c695]) and a value of > > type > > > > [com.codahale.metrics.ThreadLocalRandom] (value > > > > [com.codahale.metrics.ThreadLocalRandom@3d37aed4]) but failed to > > remove > > > it > > > > when the web application was stopped. Threads are going to be renewed > > > over > > > > time to try and avoid a probable memory leak. > > > > Apr 28, 2015 1:48:57 AM org.apache.catalina.loader.WebappClassLoader > > > > checkThreadLocalMapForLeaks > > > > SCHWERWIEGEND: The web application [/kylin] created a ThreadLocal > with > > > key > > > > of type [com.codahale.metrics.ThreadLocalRandom$1] (value > > > > [com.codahale.metrics.ThreadLocalRandom$1@46d8c695]) and a value of > > type > > > > [com.codahale.metrics.ThreadLocalRandom] (value > > > > [com.codahale.metrics.ThreadLocalRandom@12b6ffb2]) but failed to > > remove > > > it > > > > when the web application was stopped. Threads are going to be renewed > > > over > > > > time to try and avoid a probable memory leak. > > > > Apr 28, 2015 1:48:57 AM org.apache.coyote.AbstractProtocol stop > > > > INFORMATION: Stopping ProtocolHandler ["http-bio-7070"] > > > > Apr 28, 2015 1:48:57 AM org.apache.coyote.AbstractProtocol stop > > > > INFORMATION: Stopping ProtocolHandler ["ajp-bio-9009"] > > > > Apr 28, 2015 1:48:57 AM org.apache.coyote.AbstractProtocol destroy > > > > INFORMATION: Destroying ProtocolHandler ["http-bio-7070"] > > > > Apr 28, 2015 1:48:57 AM org.apache.coyote.AbstractProtocol destroy > > > > INFORMATION: Destroying ProtocolHandler ["ajp-bio-9009"] > > > > > > > > > > > > > > > > Anyone familiar with that Failure? Is it a failure in the > Configuration > > > or > > > > maybe a bug? > > > > > > > > Kind regards > > > > Tobias > > > > > > > > > >
