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Work around lack of logging so early at startup (think about doing this better later)

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This commit is contained in:
Olivier Wilkinson (reivilibre)
2022-01-19 11:26:37 +00:00
parent 6717a84678
commit 2ea5d11cb6
1 changed files with 6 additions and 3 deletions
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synapse/app/homeserver.py
+6 -3
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@@ -453,17 +453,20 @@ def setup_viztracer() -> None:
at some point during runtime.
"""
def eprint(msg: str) -> None:
print(msg, file=sys.stderr)
if os.environ.get("SYNAPSE_VIZTRACER", ""):
logger.info("SYNAPSE_VIZTRACER is set. Installing VizTracer hooks.")
eprint("SYNAPSE_VIZTRACER is set. Installing VizTracer hooks.")
try:
from viztracer import VizTracer
VizTracer().install()
except ImportError:
logger.info("VizTracer could not be imported: can't install hooks.")
eprint("VizTracer could not be imported: can't install hooks.")
else:
logger.info(
eprint(
"SYNAPSE_VIZTRACER not set (or is empty): won't install VizTracer hooks."
)