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Posted to commits@servicecomb.apache.org by ni...@apache.org on 2018/08/22 08:21:44 UTC
[incubator-servicecomb-saga] 01/03: Add the debugging method in
spring-demo's document.
This is an automated email from the ASF dual-hosted git repository.
ningjiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-servicecomb-saga.git
commit 11dff7bfe9bede80e6b897fd9f4e05c8f6fea8f9
Author: Zhen Ju <ju...@huawei.com>
AuthorDate: Wed Aug 22 16:13:44 2018 +0800
Add the debugging method in spring-demo's document.
---
saga-demo/saga-spring-demo/README.md | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/saga-demo/saga-spring-demo/README.md b/saga-demo/saga-spring-demo/README.md
index a5c7b5a..0502493 100644
--- a/saga-demo/saga-spring-demo/README.md
+++ b/saga-demo/saga-spring-demo/README.md
@@ -125,3 +125,21 @@ The second car booking will be marked with **cancel:true**
Open a browser with URL http://127.0.0.1:8083, You will get a html page. You can use this page to invoke test cases, and then get results.
**Note** transactions and compensations implemented by services must be idempotent.
+
+## Debugging
+
+To debug the services of the demo, just add debug parameter to JVM through the environment field in docker-compose configs. Let's take alpha-server as an example:
+
+```yaml
+alpha:
+ image: "alpha-server:${TAG}"
+ environment:
+ - JAVA_OPTS=-Dspring.profiles.active=prd -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005
+ ports:
+ - "6006:5005"
+...
+```
+
+We append the debug parameter `-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005` to the JAVA_OPTS environment variable, the Java process inside the container will listen on port 5005. With the port forwarding rule `6006:5005`, when alpha-server is ready, we can connect to port 6006 on the host and start debugging alpha-server.
+
+If you're using [IntelliJ](https://www.jetbrains.com/idea/), open the saga project, create a new debug configuration with template 'Remote', fill "Host" and "Port" input with "localhost" and "6006", then select "alpha" in the drop-down list of "Use classpath of module". When alpha-server is running, hit shift+f9 to debug the remote application.