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Prevent overriding faulthandler settings (#3668)

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This change ensures that Ray set up fault handlers only if it has not been enabled by other applications. Otherwise some applications could face strange issues when using Ray, and some unittests using xml runners will fail.
This commit is contained in:
Si-Yuan
2018-12-31 16:36:26 -08:00
committed by Robert Nishihara
parent c9b8ecca51
commit 93d54110f8
1 changed files with 2 additions and 1 deletions
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python/ray/worker.py
+2 -1
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@@ -1830,7 +1830,8 @@ def connect(ray_params,
assert worker.cached_functions_to_run is not None, error_message
# Enable nice stack traces on SIGSEGV etc.
faulthandler.enable(all_threads=False)
if not faulthandler.is_enabled():
faulthandler.enable(all_threads=False)
if ray_params.collect_profiling_data:
worker.profiler = profiling.Profiler(worker)