[
https://issues.apache.org/jira/browse/APEXCORE-330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15269532#comment-15269532
]
ASF GitHub Bot commented on APEXCORE-330:
-----------------------------------------
Github user davidyan74 commented on a diff in the pull request:
https://github.com/apache/incubator-apex-core/pull/321#discussion_r61951218
--- Diff: engine/src/main/java/com/datatorrent/stram/cli/ApexCli.java ---
@@ -3366,6 +3370,28 @@ public void execute(String[] args, ConsoleReader
reader) throws Exception
}
+ private class GetContainerStackTrace implements Command
+ {
+ @Override
+ public void execute(String[] args, ConsoleReader reader) throws
Exception
+ {
+ String containerLongId = getContainerLongId(args[1]);
+ if (containerLongId == null) {
+ throw new CliException("Container " + args[1] + " not found");
+ }
+
+ JSONObject response;
+ try {
+ response =
getResource(StramWebServices.PATH_PHYSICAL_PLAN_CONTAINERS + "/" + args[1] +
"/" + StramWebServices.PATH_STACKTRACE, currentApp);
+ } catch (Exception ex) {
+ throw new CliException(ex.toString());
--- End diff --
instead of new CliException(ex.toString), can you do:
```java
throw new CliException("<Some meaningful error message for the user>", ex);
```
> Ability to obtain a thread dump from a container
> ------------------------------------------------
>
> Key: APEXCORE-330
> URL: https://issues.apache.org/jira/browse/APEXCORE-330
> Project: Apache Apex Core
> Issue Type: Improvement
> Reporter: Thomas Weise
> Assignee: Sandesh
>
> To analyze issues such as "stuck operator", it is useful to obtain stats from
> the running JVM. Often needed are GC stats and thread dump. In production
> environments users often don't have direct access to the machines, making it
> available through the REST API will help.
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