* Fix flaky EC integration tests by collecting server logs on failure
The EC Integration Tests were experiencing flaky timeouts with errors like
"error reading from server: EOF" and master client reconnection attempts.
When tests failed, server logs were not collected, making debugging difficult.
Changes:
- Updated all test functions to use t.TempDir() instead of os.MkdirTemp()
and manual cleanup. t.TempDir() automatically preserves directories when
tests fail, ensuring logs are available for debugging.
- Modified GitHub Actions workflow to collect server logs from temp
directories when tests fail, including master.log and volume*.log files.
- Added explicit log collection step that searches for test temp directories
and copies them to artifacts for upload.
This will make debugging flaky test failures much easier by providing access
to the actual server logs showing what went wrong.
* Fix find command precedence in log collection
The -type d flag only applied to the first -name predicate because -o
has lower precedence than the implicit AND. Grouped the -name predicates
with escaped parentheses so -type d applies to all directory name patterns.
Chris Lu