There's maybe some conflict between Kylin's tomcat instance and others. You can install Tomcat at single machine beside Hadoop Cluster (as our deployment). But please make sure that machine has hadoop client installed and set correctly with your cluster env. The account should has privileges to operate HDFS/Hive/HBase/JobHistory and others.
Please refer to this installation guide for more detail: https://github.com/apache/incubator-kylin/blob/master/docs/Installation/Installation.md Thanks. Best Regards! --------------------- Luke Han 2015-04-29 20:57 GMT+08:00 Tobias Bockrath <[email protected]>: > 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 > > > > > > > > > > > > > > >
