Java using 100% CPU and Alfresco no respond

[xixi999]

Install environment: Ubuntu 12.04 with Alfresco 4.0.d stand install on AWS ec2, data size about 100G. The system run about more than about a year without issues. Did  a system update and reboot few days ado, now we got in trouble, as far as the system init finished, the java still using about 100%CPU(2 core, init stage  120~199% usage), and the system become slow then no respond. The CPU usage on AWS like a flat line, even the tomcat page can't load.

[parzgnat]

Have you checked the logs that are located in <ALFRESCO_HOME>/tomcat/logs for any errors during startup?  It could be that your repository is re-indexing, which can take a long time and is very CPU intensive.  Please post any errors that you're seeing in the logs.

[kaynezhang]

use top command to get PID of the thread with highest CPU.
then look for thread with the matching HEX PID in your thread dump.

[kaynezhang]

use top command to get PID of the thread with highest CPU.
then look for thread with the matching HEX PID in your thread dump.