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| author | Gary Kotton <gkotton@vmware.com> | 2017-07-26 17:52:47 +0300 |
|---|---|---|
| committer | Gary Kotton <gkotton@vmware.com> | 2017-07-26 17:54:27 +0300 |
| commit | 9b3c8f34a92e62ce5ba13a10dd9e02f3a3105188 (patch) | |
| tree | d877bb2de5039b943787658ab0d9d7d4c5be4710 | |
| parent | 88583edbb478c1a157b58c95c231a0b5a741b78a (diff) | |
| download | oslo-concurrency-9b3c8f34a92e62ce5ba13a10dd9e02f3a3105188.tar.gz | |
Add debug log to indicate when external lock is taken
In a case when a number of threads are concurrently accessing a
resource that has a external lock there is no indication when
one of the threads has taken the external lock.
This patch adds in a debug log to try and add some clarity.
Change-Id: Ibd7cfd3b39370b1a54f2ab50c75c6b92a876ae1a
| -rw-r--r-- | oslo_concurrency/lockutils.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/oslo_concurrency/lockutils.py b/oslo_concurrency/lockutils.py index becda88..e896a1a 100644 --- a/oslo_concurrency/lockutils.py +++ b/oslo_concurrency/lockutils.py @@ -214,6 +214,9 @@ def lock(name, lock_file_prefix=None, external=False, lock_path=None, if external and not CONF.oslo_concurrency.disable_process_locking: ext_lock = external_lock(name, lock_file_prefix, lock_path) ext_lock.acquire(delay=delay) + if do_log: + LOG.debug('Acquired external semaphore "%(lock)s"', + {'lock': name}) try: yield ext_lock finally: |