Status: Accepted
Owner: ----
Labels: Priority-High Type-Defect Target-2.6.2
New issue 950 by pekka.klarck: XML output can corrupt if library uses
Python's `logging` module in threads
http://code.google.com/p/robotframework/issues/detail?id=950
A strange problem related to XML output being broken when using SSHLibrary
was reported on robotframework-users:
http://groups.google.com/group/robotframework-users/browse_thread/thread/7a9008f7f4fa7e79
After some investigation I noticed that the problem is caused by:
1) SSHLibrary using Paramiko tool internally on Python,
2) Paramiko using Python's `logging` module internally in threads,
3) Robot Framework 2.6 automatically collecting messages logged by
`logging` into its log file (issue 455),
4) Logging in threads easily causing problems (see e.g. issue 893).
The same problem can occur with any library that uses `logging` in threads
either directly or indirectly by the tool it uses. This is definitely a bug
in Robot and needs to be fixed. I believe it's best to change Robot's
logging so that messages coming from non-main threads are silently ignored.
I already though about rejecting such messages in comments to issue 893 but
that was never implemented.
