JGroups Troubleshooting Techniques: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| (One intermediate revision by the same user not shown) | |||
| Line 20: | Line 20: | ||
Also see [[Linux Signals#SIGSTOP_.2819.29|SIGSTOP]] and [[Linux Signals#SIGCONT_.2818.29|SIGCONT]]. | Also see [[Linux Signals#SIGSTOP_.2819.29|SIGSTOP]] and [[Linux Signals#SIGCONT_.2818.29|SIGCONT]]. | ||
=Practical Ways to Determine the Current View= | =Practical Ways to Determine the Current View= | ||
| Line 32: | Line 26: | ||
* [[JGroups Protocol FD_SOCK#VIEW_CHANGE|Group Membership based on FD_SOCK VIEW_CHANGE log entries]] | * [[JGroups Protocol FD_SOCK#VIEW_CHANGE|Group Membership based on FD_SOCK VIEW_CHANGE log entries]] | ||
* [[WildFly CLI - Obtaining the Current JGroups View|Current view obtained with the WildFly CLI]] | * [[WildFly CLI - Obtaining the Current JGroups View|Current view obtained with the WildFly CLI]] | ||
=Threads= | |||
<font color=red>Look at threads: (regular,timer,OOB)</font>. | |||
Latest revision as of 17:01, 6 March 2016
Internal
Verbose Logging
Suspend JVM Execution
A JVM running JGroups can be suspended from executing by sending the SIGSTOP signal into it:
kill -SIGSTOP <jvm-pid>
Execution can be later resumed by sending SIGCONT:
kill -SIGCONT <jvm-pid>
Practical Ways to Determine the Current View
- Group Membership based on GMS log entries
- Group Membership based on FD_SOCK VIEW_CHANGE log entries
- Current view obtained with the WildFly CLI
Threads
Look at threads: (regular,timer,OOB).