kylin 2.5.0 大数据平台HDP，一共5台kylin节点，一台all，一台job，三台query节点。 挂掉的都是query节点，但是这个错误在5个节点上都有报 ------------------------------------------------------------------ 发件人：yuzhang <shifengdefan...@163.com> 发送时间：2019年3月5日(星期二) 17:37 收件人：wanmin_ws <wanmin...@aliyun.com.INVALID> 抄 送：dev <dev@kylin.apache.org> 主 题：回复：kylin内存溢出问题
Hi, Could you describe your deploy environment and Kylie version and Number of concurrent | | yuzhang | | Email:shifengdefan...@163.com | Signature is customized by Netease Mail Master 在2019年03月05日 17:27，wanmin_ws 写道： 只有查询高峰期的时候会出现这个问题，这个问题和slow query 有没有关系？这个错是kylin.out报出来的，显示是tomcat不能开启更多的session ------------------------------------------------------------------ 发件人：ShaoFeng Shi <shaofeng...@apache.org> 发送时间：2019年3月5日(星期二) 17:23 收件人：dev <dev@kylin.apache.org>; wanmin_ws <wanmin...@aliyun.com> 抄 送：user <u...@kylin.apache.org> 主 题：Re: kylin内存溢出问题 Hi Min, The log information is so limited that we don't know what may caused that. I highly recommend you to do some analysis from the following perspective: 1) check the log files in "logs/" and "tomcat/logs" folder; 2) using jmap and jhat to analysis the heap usage; 3) using jstack to analysis the thread information; 4) check your cube definition to see whether there is some UHC dimension and the dictionary encoding was used for that. Best regards, Shaofeng Shi 史少锋 Apache Kylin PMC Work email: shaofeng....@kyligence.io Kyligence Inc: https://kyligence.io/ Apache Kylin FAQ: https://kylin.apache.org/docs/gettingstarted/faq.html Join Kylin user mail group: user-subscr...@kylin.apache.org Join Kylin dev mail group: dev-subscr...@kylin.apache.org wanmin_ws <wanmin...@aliyun.com.invalid> 于2019年3月5日周二 下午5:03写道： > 错误描述：在访问高峰期的时候，kylin会挂掉，查看日志如下，但不知道如何操作，请问能帮我看一下吗。这个问题已经困扰很久了。 > 日志： > 严重: The web application [/kylin] created a ThreadLocal with key of type > [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@6cc63032]) and a > value of type [org.apache.kylin.rest.msg.Message] (value > [org.apache.kylin.rest.msg.Message@3ad18e2f]) 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. > 三月 01, 2019 9:50:52 上午 org.apache.catalina.loader.WebappClassLoaderBase > checkThreadLocalMapForLeaks > 严重: The web application [/kylin] created a ThreadLocal with key of type > [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@76397470]) and a > value of type [org.apache.kylin.common.util.ImplementationSwitch] (value > [org.apache.kylin.common.util.ImplementationSwitch@26f33af5]) 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. > 三月 01, 2019 9:50:52 上午 org.apache.coyote.AbstractProtocol stop > 信息: Stopping ProtocolHandler ["http-bio-7070"] > 三月 01, 2019 9:50:52 上午 org.apache.coyote.AbstractProtocol stop > 信息: Stopping ProtocolHandler ["ajp-bio-9009"]
