[Bug]: Always failed for parsing with Knowledge Graph mehtod

[Dyson-Ido]

Is there an existing issue for the same bug?

• I have checked the existing issues.

RAGFlow workspace code commit ID

26d3480

RAGFlow image version

v0.15.1-132-g3894de89 slim

Other environment information

Actual behavior

ERROR: Task is abandoned after 3 times attempts.

Expected behavior

No response

Steps to reproduce

1. Select chunk method as Knowledge Graph
2. Click Parse button
3. After a while : ERROR: Task is abandoned after 3 times attempts.

Gemini and local LLM tried, same error.

Chat function works well.

Additional information

No response

[KevinHuSh]

Please check the backend logs docker logs -f ragflow-server.
Is there any error message?

[Dyson-Ido]

Please check the backend logs docker logs -f ragflow-server. Is there any error message?

2025-01-26 11:20:04,674 ERROR 18 fetch task exception
Traceback (most recent call last):
File "/ragflow/.venv/lib/python3.10/site-packages/pymysql/connections.py", line 649, in connect
sock = socket.create_connection(
File "/usr/lib/python3.10/socket.py", line 824, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
File "/usr/lib/python3.10/socket.py", line 955, in getaddrinfo
for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Temporary failure in name resolution

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/ragflow/.venv/lib/python3.10/site-packages/peewee.py", line 3232, in connect
self._state.set_connection(self._connect())
File "/ragflow/.venv/lib/python3.10/site-packages/playhouse/pool.py", line 76, in inner
return fn(self, *args, **kwargs)
File "/ragflow/.venv/lib/python3.10/site-packages/playhouse/pool.py", line 169, in _connect
conn = super(PooledDatabase, self)._connect()
File "/ragflow/.venv/lib/python3.10/site-packages/peewee.py", line 4201, in _connect
conn = mysql.connect(db=self.database, autocommit=True,
File "/ragflow/.venv/lib/python3.10/site-packages/pymysql/connections.py", line 361, in init
self.connect()
File "/ragflow/.venv/lib/python3.10/site-packages/pymysql/connections.py", line 716, in connect
raise exc
pymysql.err.OperationalError: (2003, "Can't connect to MySQL server on 'mysql' ([Errno -3] Temporary failure in name resolution)")

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/ragflow/api/db/services/document_service.py", line 411, in update_progress
cls.update_by_id(d["id"], info)
File "/ragflow/.venv/lib/python3.10/site-packages/peewee.py", line 3127, in inner
with ConnectionContext(self.db):
File "/ragflow/.venv/lib/python3.10/site-packages/peewee.py", line 3122, in enter
self.db.connect()
File "/ragflow/.venv/lib/python3.10/site-packages/playhouse/pool.py", line 121, in connect
return super(PooledDatabase, self).connect(reuse_if_open)
File "/ragflow/.venv/lib/python3.10/site-packages/peewee.py", line 3231, in connect
with exception_wrapper:
File "/ragflow/.venv/lib/python3.10/site-packages/peewee.py", line 3059, in exit
reraise(new_type, new_type(exc_value, *exc_args), traceback)
File "/ragflow/.venv/lib/python3.10/site-packages/peewee.py", line 192, in reraise
raise value.with_traceback(tb)
File "/ragflow/.venv/lib/python3.10/site-packages/peewee.py", line 3232, in connect
self._state.set_connection(self._connect())
File "/ragflow/.venv/lib/python3.10/site-packages/playhouse/pool.py", line 76, in inner
return fn(self, *args, **kwargs)
File "/ragflow/.venv/lib/python3.10/site-packages/playhouse/pool.py", line 169, in _connect
conn = super(PooledDatabase, self)._connect()
File "/ragflow/.venv/lib/python3.10/site-packages/peewee.py", line 4201, in _connect
conn = mysql.connect(db=self.database, autocommit=True,
File "/ragflow/.venv/lib/python3.10/site-packages/pymysql/connections.py", line 361, in init
self.connect()
File "/ragflow/.venv/lib/python3.10/site-packages/pymysql/connections.py", line 716, in connect
raise exc
peewee.OperationalError: (2003, "Can't connect to MySQL server on 'mysql' ([Errno -3] Temporary failure in name resolution)")

[Dyson-Ido]

@KevinHuSh , please look into the above error, I tried many times to make knowledge graph method ,but failed with same error as I mentioned before.

[KevinHuSh]

Check the host of mysql part in conf/service_conf.yaml.
Make sure it's accessible.

[Dyson-Ido]

Check the host of mysql part in conf/service_conf.yaml. Make sure it's accessible.

Yes mysql is accessible when using a database client to connect to it but still have this error:
Begin at:
Sun, 26 Jan 2025 14:59:30 GMT
Duration:
488.70 s
Progress:
14:59:30 Task has been received. 14:59:31 Page(11633): OCR started 15:01:34 Task has been received. 15:01:35 Page(11633): OCR started 15:05:22 Task has been received. 15:05:23 Page(1~1633): OCR started ERROR: Task is abandoned after 3 times attempts.

[Dyson-Ido]

@KevinHuSh My PDF is large, maybe that OCR task with (1~1633) consuming too much memory to cause the failure?

[KevinHuSh]

Very likely.

[qiufeihong2018]

same question