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fix: /thread_dump endpoint returns 500 due to faulthandler requiring real file descriptor #1428

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Merged
EItanya merged 3 commits into from
Mar 5, 2026
+20 −20
Merged

fix: /thread_dump endpoint returns 500 due to faulthandler requiring real file descriptor #1428

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4999501
Fix threaddump endpoint
iplay88keys Mar 4, 2026
5c52ead
Fix threaddump endpoints in other packages and fix lint
iplay88keys Mar 4, 2026
1a1e8f4
Merge branch 'main' into iplay88keys/fix-thread-dump-endpoint
EItanya Mar 4, 2026
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10 changes: 5 additions & 5 deletions python/packages/kagent-adk/src/kagent/adk/_a2a.py
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Original file line number Diff line number Diff line change
Expand Up @@ -42,12 +42,12 @@ def health_check(request: Request) -> PlainTextResponse:


def thread_dump(request: Request) -> PlainTextResponse:
import io
import tempfile

buf = io.StringIO()
faulthandler.dump_traceback(file=buf)
buf.seek(0)
return PlainTextResponse(buf.read())
with tempfile.TemporaryFile(mode="w+") as tmp:
faulthandler.dump_traceback(file=tmp, all_threads=True)
tmp.seek(0)
return PlainTextResponse(tmp.read())


kagent_url_override = os.getenv("KAGENT_URL")
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10 changes: 5 additions & 5 deletions python/packages/kagent-crewai/src/kagent/crewai/_a2a.py
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Original file line number Diff line number Diff line change
Expand Up @@ -29,12 +29,12 @@ def def_health_check(request: Request) -> PlainTextResponse:


def thread_dump(request: Request) -> PlainTextResponse:
import io
import tempfile

buf = io.StringIO()
faulthandler.dump_traceback(file=buf)
buf.seek(0)
return PlainTextResponse(buf.read())
with tempfile.TemporaryFile(mode="w+") as tmp:
faulthandler.dump_traceback(file=tmp, all_threads=True)
tmp.seek(0)
return PlainTextResponse(tmp.read())


class KAgentApp:
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10 changes: 5 additions & 5 deletions python/packages/kagent-langgraph/src/kagent/langgraph/_a2a.py
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Original file line number Diff line number Diff line change
Expand Up @@ -35,12 +35,12 @@ def health_check(request: Request) -> PlainTextResponse:

def thread_dump(request: Request) -> PlainTextResponse:
"""Thread dump endpoint for debugging."""
import io
import tempfile

buf = io.StringIO()
faulthandler.dump_traceback(file=buf)
buf.seek(0)
return PlainTextResponse(buf.read())
with tempfile.TemporaryFile(mode="w+") as tmp:
faulthandler.dump_traceback(file=tmp, all_threads=True)
tmp.seek(0)
return PlainTextResponse(tmp.read())


class KAgentApp:
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10 changes: 5 additions & 5 deletions python/packages/kagent-openai/src/kagent/openai/_a2a.py
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Original file line number Diff line number Diff line change
Expand Up @@ -44,12 +44,12 @@ def health_check(request: Request) -> PlainTextResponse:

def thread_dump(request: Request) -> PlainTextResponse:
"""Thread dump endpoint for debugging."""
import io
import tempfile

buf = io.StringIO()
faulthandler.dump_traceback(file=buf)
buf.seek(0)
return PlainTextResponse(buf.read())
with tempfile.TemporaryFile(mode="w+") as tmp:
faulthandler.dump_traceback(file=tmp, all_threads=True)
tmp.seek(0)
return PlainTextResponse(tmp.read())


# Environment variables
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