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QUESTION
I'm using Knowage and have setup a data source, many parameterized datasets, and a cockpit.
I have a detailed report that requires many datasets.
The cockpit started freezing and I have to restart the Knowage server to get it to respond.
I split the report into different pages, and it seemed to help because it only loads some of the data at a time.
But now I added another dataset [14 total] and the server crashed again.
I'm monitoring the server through a jmx agent to understand why it's hanging, but the utilization seems fine.
Tomcat just hangs and never responds.
It appears the servlet has stopped processing requests, but I don't see any errors in the logs that look fatal.
The heap utilization is not bad, but does look anomalous.
Errors in log -
...ANSWER
Answered 2021-Mar-14 at 17:15I believe the issue was caused by the limit of DB connections, and max wait in server.xml
.
I noticed an error about attributes in the jndi configuration, and updated them.
The freezing has not occurred again, yet.
QUESTION
having trouble running generic report after upgrading tomcat version from 7.0.50 to version 9.0.38.
Knowage version : 6.4.4
OS : CentOS 7
Tomcat version : 9.0.38
Error from log file :
13 Oct 2020 16:02:27,173 ERROR it.eng.spagobi.utilities.filters.SpagoBIAccessFilter.doFilter:194 -SpagoBIAccessFilter:doFilter ServletException!! javax.servlet.ServletException: Message: Error occured while retrieving user profile of user [eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiYmlhZG1pbiIsImV4cCI6MTYwMjYxMjEzN30.gcHxPvJDfbZCLh6bw1EVuPM3bUnY0xEvgz2KJgE77oA] from service [Security Service] at endpoint [https://sample:443/knowage/services/SecurityService]; Cause: ; nested exception is: javax.net.ssl.SSLHandshakeException: Received fatal alert: protocol_version at it.eng.spagobi.utilities.filters.SpagoBIAccessFilter.doFilter(SpagoBIAccessFilter.java:167) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at it.eng.spagobi.utilities.filters.EncodingFilter.doFilter(EncodingFilter.java:54) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source) 13 Oct 2020 16:02:27,173 ERROR it.eng.spagobi.utilities.filters.SpagoBIAccessFilter.doFilter:194 - SpagoBIAccessFilter:doFilter ServletException!! javax.servlet.ServletException: Message: Error occured while retrieving user profile of user [eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiYmlhZG1pbiIsImV4cCI6MTYwMjYxMjEzN30.gcHxPvJDfbZCLh6bw1EVuPM3bUnY0xEvgz2KJgE77oA] from service [Security Service] at endpoint [https://sample:443/knowage/services/SecurityService]; Cause: ; nested exception is: javax.net.ssl.SSLHandshakeException: Received fatal alert: protocol_version
Error From Knowage Server :
...ANSWER
Answered 2020-Oct-13 at 10:39Got the solution for this
Found out that my TLS versionning is incorrect. Changed it to protocols=TLSv1.2 , restart tomcat and clear cache. Reports are now working.
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