elek commented on pull request #1050:
URL: https://github.com/apache/hadoop-ozone/pull/1050#issuecomment-644147318
Thanks @vivekratnavel I added this flag.
Quick update:
I found that the current approach is not working very well:
* Even if the servers are instrumented by agents I couldn't collect the
coverage data as they are persisted only when the JVM is shutting down. With
docker, it's hard to do as the `docker-compose down` triggers the JVM shutdown
and there is no way to save the jacoco files at that time.
The latest patch tries to follow more generic approach: A tcp server is
started (on host) to collect all the coverage data.
1. With this approach we don't need any copy for the jacoco.file-s. It just
works
2. The final jacoco-combined.exec is written by the TCP server.
3. All the client calls can be measured independent how many client JVM is
started
Will see how does it work.
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