GitHub user chiwanpark opened a pull request: https://github.com/apache/flink/pull/374
[FLINK-1179] Add button to JobManager web interface to request stack trace of a TaskManager This PR contains following changes: * Add public constructors of `org.apache.flink.runtime.instance.InstanceID` for sending instance ID from web interface to job manager * Add a helper method called `getRegisteredInstanceById(InstanceID)` into `org.apache.flink.runtime.instance.InstanceManager` for finding Akka Actor from instance ID * Add akka messages called `RequestStackTrace`, `SendStackTrace` and `StackTrace` * Modify a task manager page in web interface of job manager to request and show stack trace of a task manager The following image is a screenshot of web interface of job manager. ![screen shot 2015-02-08 at 3 49 51 pm](https://cloud.githubusercontent.com/assets/1941681/6095765/9293e996-afaf-11e4-9e8e-4dcd69ce595b.png) You can merge this pull request into a Git repository by running: $ git pull https://github.com/chiwanpark/flink FLINK-1179 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/374.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #374 ---- commit 83ab236ce52dd8c3b0aa0b94ee8644a4de28e152 Author: Chiwan Park <chiwanp...@icloud.com> Date: 2015-02-08T06:36:19Z [FLINK-1179] [runtime] Add helper method for InstanceID commit a2a0a0f8261851c93330417f3c60a16c5f1d2dd5 Author: Chiwan Park <chiwanp...@icloud.com> Date: 2015-02-08T07:05:29Z [FLINK-1179] Add internal API for obtaining StackTrace commit 423e64ca4cc6ad4a9396e4418eab95ce5b81b219 Author: Chiwan Park <chiwanp...@icloud.com> Date: 2015-02-08T07:10:03Z [FLINK-1179] [jobmanager] Add button to JobManager web interface to request stack trace of a TaskManager ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---