[Building Sakai] tomcat crashes after several "complete: nowhere set to go, going to portal"

[Sanghyun Jeon]

We are using sakai 2.8.x and tomcat 5 and mysql 5.1

Yesterday afternoon, we noticed Sakai slowness and finally one of four
tomcat instances was crashed. Tomcat log around crashing time generated a
lot of "complete: nowhere set to go, going to portal" not warning, but info.

I am wondering what exactly this INFO means and I am also wondering whether
the INFO is related with tomcat crashed.

I attached the part of tomcat log below and thank you.




2014-01-23 16:38:58.330 [WARN]
org.sakaiproject.lessonbuildertool.tool.producers.ShowPageProducer:453 -
ShowPage item not in page2014-01-23 16:40:52.492 [INFO]
org.sakaiproject.login.tool.LoginTool:503 - complete: nowhere set to go,
going to portal2014-01-23 16:41:05.442 [INFO]
org.sakaiproject.login.tool.LoginTool:503 - complete: nowhere set to go,
going to portal2014-01-23 16:45:59.163 [WARN]
org.sakaiproject.lessonbuildertool.tool.producers.ShowPageProducer:453 -
ShowPage item not in page2014-01-23 16:46:13.049 [INFO]
org.sakaiproject.login.tool.LoginTool:503 - complete: nowhere set to go,
going to portal2014-01-23 16:46:45.182 [WARN]
org.sakaiproject.access.tool.AccessServlet:467 - doLogin - proceeding with
null HELPER_DONE_URL
2014-01-23 16:46:45.184 [INFO] org.sakaiproject.login.tool.LoginTool:503 -
complete: nowhere set to go, going to portal2014-01-23 16:47:01.194 [WARN]
org.sakaiproject.access.tool.AccessServlet:467 - doLogin - proceeding with
null HELPER_DONE_URL
2014-01-23 16:47:01.198 [INFO] org.sakaiproject.login.tool.LoginTool:503 -
complete: nowhere set to go, going to portal
2014-01-23 16:47:38.728 [INFO] org.sakaiproject.login.tool.LoginTool:503 -
complete: nowhere set to go, going to portal2014-01-23 16:48:04.547 [INFO]
org.sakaiproject.login.tool.LoginTool:503 - complete: nowhere set to go,
going to portal2014-01-23 16:48:19.759 [INFO]
org.sakaiproject.login.tool.LoginTool:503 - complete: nowhere set to go,
going to portal2014-01-23 16:50:15.140 [INFO]
org.sakaiproject.login.tool.LoginTool:503 - complete: nowhere set to go,
going to portal2014-01-23 16:57:43.316 [WARN]
org.sakaiproject.db.impl.BasicSqlService:586 - Sql.dbRead: sql: select
TOOL_ID, REGISTRATION, TITLE, LAYOUT_HINTS, PAGE_ORDER from SAKAI_SITE_TOOL
where PAGE_ID = ? order by PAGE_ORDER ASC
a52c62e1-2414-4209-861d-1b69da15cac9com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:
Communications link failure
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