tomcat由于内存泄漏而崩溃。这是卡塔琳娜，out。根据下面的日志，任何关于哪个线程导致的想法和可能的修复
SEVERE: The web application [/testapp] appears to have started a thread named [hbase-tablepool-168-thread-1] but has failed to stop it. This is very likely to create a memory leak.
Jul 07, 2014 2:51:38 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/testapp] appears to have started a thread named [hbase-tablepool-169-thread-1] but has failed to stop it. This is very likely to create a memory leak.
Jul 07, 2014 2:51:38 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/testapp] appears to have started a thread named [IPC Client (47) connection to ip-XX-XX-XX-XX.ec2.internal/XX-XX-XX-XX:60020 from tomcat] but has failed to stop it. This is very likely to create a memory leak.
Jul 07, 2014 2:51:38 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/testapp] appears to have started a thread named [IPC Client (47) connection to ip-XX-XX-XX-XX.ec2.internal/XX-XX-XX-XX:60020 from tomcat] but has failed to stop it. This is very likely to create a memory leak.
Jul 07, 2014 2:51:38 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/testapp] appears to have started a thread named [IPC Client (47) connection to ip-XX-XX-XX-XX.ec2.internal/XX-XX-XX-XX:60020 from tomcat] but has failed to stop it. This is very likely to create a memory leak.
Jul 07, 2014 2:51:38 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/testapp] appears to have started a thread named [IPC Client (47) connection to ip-XX-XX-XX-XX.ec2.internal/XX-XX-XX-XX:60020 from tomcat] but has failed to stop it. This is very likely to create a memory leak.
Jul 07, 2014 2:51:38 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/testapp] appears to have started a thread named [hbase-tablepool-170-thread-1] but has failed to stop it. This is very likely to create a memory leak.
Jul 07, 2014 2:51:38 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [/testapp] created a ThreadLocal with key of type [org.apache.hadoop.io.Text$1] (value [org.apache.hadoop.io.Text$1@1dba6717]) and a value of type [sun.nio.cs.UTF_8.Encoder] (value [sun.nio.cs.UTF_8$Encoder@38c62640]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
Jul 07, 2014 2:51:38 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [/testapp] created a ThreadLocal with key of type [org.apache.hadoop.io.Text$1] (value [org.apache.hadoop.io.Text$1@1dba6717]) and a value of type [sun.nio.cs.UTF_8.Encoder] (value [sun.nio.cs.UTF_8$Encoder@58f950de]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
Jul 07, 2014 2:51:39 PM org.apache.coyote.http11.Http11Protocol destroy
INFO: Stopping Coyote HTTP/1.1 on http-8080
HTablePool似乎已被弃用，但无论谁创建它(希望是Servlet或过滤器)都应该在destroy()方法中调用close()。