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Posted to commits@airflow.apache.org by "Ping Zhang (JIRA)" <ji...@apache.org> on 2019/07/23 00:05:00 UTC

[jira] [Updated] (AIRFLOW-5023) airflow scheudler `RuntimeError: maximum recursion depth exceeded while calling a Python object`

     [ https://issues.apache.org/jira/browse/AIRFLOW-5023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ping Zhang updated AIRFLOW-5023:
--------------------------------
    Description: 
I created a new conda env

 

 
{code:java}
conda  create -n airflow-kb8 python=2.7.13
conda activate airflow-kb8
pip install apache-airflow
pip install Flask==1.0.4 # to fix a issue werkzeug.wrappers.json missing json
pip install cython
pip install 'apache-airflow[all_dbs]'
{code}
 

 

 

After that, i tried to run airflow scheduler and got this error:

 

 
{code:java}
 
[2019-07-22 16:43:31,270] {settings.py:182} INFO - settings.configure_orm(): Using pool settings. pool_size=5, pool_recycle=1800, pid=1008
 [2019-07-22 16:43:32,387] {_init_.py:51} INFO - Using executor KubernetesExecutor
 ____________ _____________
 ____ |_( )________ _/_ /________ __
 ____ /| |_ /__ __/ /_ __ /_ __ _ | /| / /
 ___ ___ | / _ / _ _/ _ / / // /_ |/ |/ /
 // |// // // // __/__/|_/
 [2019-07-22 16:43:32,708] {jobs.py:1501} INFO - Starting the scheduler
 [2019-07-22 16:43:32,708] {jobs.py:1509} INFO - Running execute loop for -1 seconds
 [2019-07-22 16:43:32,709] {jobs.py:1510} INFO - Processing each file at most -1 times
 [2019-07-22 16:43:32,709] {jobs.py:1513} INFO - Searching for files in /Users/xxxxx/airflow/dags
 [2019-07-22 16:43:32,717] {jobs.py:1515} INFO - There are 21 files in /Users/xxxxx/airflow/dags
 [2019-07-22 16:43:32,722] {kubernetes_executor.py:690} INFO - Start Kubernetes executor
 [2019-07-22 16:43:32,776] {kubernetes_executor.py:627} INFO - When executor started up, found 0 queued task instances
 [2019-07-22 16:43:32,777] {jobs.py:1560} INFO - Resetting orphaned tasks for active dag runs
 [2019-07-22 16:43:32,785] {dag_processing.py:515} INFO - Launched DagFileProcessorManager with pid: 1459
 [2019-07-22 16:43:32,798] {settings.py:53} INFO - Configured default timezone <Timezone [UTC]>
 [2019-07-22 16:43:32,811] {kubernetes_executor.py:304} INFO - Event: and now my watch begins starting at resource_version: 0
 [2019-07-22 16:43:32,819] {settings.py:182} INFO - settings.configure_orm(): Using pool settings. pool_size=5, pool_recycle=1800, pid=1459
 Process DagFileProcessor22-Process:
 Traceback (most recent call last):
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
 self.run()
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/multiprocessing/process.py", line 114, in run
 self._target(*self._args, **self._kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/jobs.py", line 410, in helper
 print(e)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2
 
{code}
 

 

 

Could you please take a look?

  was:
I created a new conda env

```

conda  create -n airflow-kb8 python=2.7.13

conda activate airflow-kb8

 

pip install apache-airflow

pip install Flask==1.0.4 # to fix a issue werkzeug.wrappers.json missing json

pip install cython

pip install 'apache-airflow[all_dbs]'

```

 

After that, i tried to run airflow scheduler and got this error:

 

```

[2019-07-22 16:43:31,270] \{settings.py:182} INFO - settings.configure_orm(): Using pool settings. pool_size=5, pool_recycle=1800, pid=1008
[2019-07-22 16:43:32,387] \{__init__.py:51} INFO - Using executor KubernetesExecutor
 ____________ _____________
 ____ |__( )_________ __/__ /________ __
____ /| |_ /__ ___/_ /_ __ /_ __ \_ | /| / /
___ ___ | / _ / _ __/ _ / / /_/ /_ |/ |/ /
 _/_/ |_/_/ /_/ /_/ /_/ \____/____/|__/
[2019-07-22 16:43:32,708] \{jobs.py:1501} INFO - Starting the scheduler
[2019-07-22 16:43:32,708] \{jobs.py:1509} INFO - Running execute loop for -1 seconds
[2019-07-22 16:43:32,709] \{jobs.py:1510} INFO - Processing each file at most -1 times
[2019-07-22 16:43:32,709] \{jobs.py:1513} INFO - Searching for files in /Users/xxxxx/airflow/dags
[2019-07-22 16:43:32,717] \{jobs.py:1515} INFO - There are 21 files in /Users/xxxxx/airflow/dags
[2019-07-22 16:43:32,722] \{kubernetes_executor.py:690} INFO - Start Kubernetes executor
[2019-07-22 16:43:32,776] \{kubernetes_executor.py:627} INFO - When executor started up, found 0 queued task instances
[2019-07-22 16:43:32,777] \{jobs.py:1560} INFO - Resetting orphaned tasks for active dag runs
[2019-07-22 16:43:32,785] \{dag_processing.py:515} INFO - Launched DagFileProcessorManager with pid: 1459
[2019-07-22 16:43:32,798] \{settings.py:53} INFO - Configured default timezone <Timezone [UTC]>
[2019-07-22 16:43:32,811] \{kubernetes_executor.py:304} INFO - Event: and now my watch begins starting at resource_version: 0
[2019-07-22 16:43:32,819] \{settings.py:182} INFO - settings.configure_orm(): Using pool settings. pool_size=5, pool_recycle=1800, pid=1459
Process DagFileProcessor22-Process:
Traceback (most recent call last):
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
 self.run()
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/multiprocessing/process.py", line 114, in run
 self._target(*self._args, **self._kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/jobs.py", line 410, in helper
 print(e)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1286, in _log
 self.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1296, in handle
 self.callHandlers(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1336, in callHandlers
 hdlr.handle(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 759, in handle
 self.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
 self.handler.emit(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 957, in emit
 StreamHandler.emit(self, record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 889, in emit
 self.handleError(record)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 812, in handleError
 None, sys.stderr)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
 _print(file, 'Traceback (most recent call last):')
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
 file.write(str+terminator)
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
 self.logger.log(self.level, self._buffer.rstrip())
 File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/__init__.py", line 1231, in log
 self._log(level, msg, args, **kwargs)
 File "/Users/xxxxx/anaconda2

 

```

 

Could you please take a look?


> airflow scheudler `RuntimeError: maximum recursion depth exceeded while calling a Python object`
> ------------------------------------------------------------------------------------------------
>
>                 Key: AIRFLOW-5023
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-5023
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: scheduler
>    Affects Versions: 1.10.3
>            Reporter: Ping Zhang
>            Priority: Major
>
> I created a new conda env
>  
>  
> {code:java}
> conda  create -n airflow-kb8 python=2.7.13
> conda activate airflow-kb8
> pip install apache-airflow
> pip install Flask==1.0.4 # to fix a issue werkzeug.wrappers.json missing json
> pip install cython
> pip install 'apache-airflow[all_dbs]'
> {code}
>  
>  
>  
> After that, i tried to run airflow scheduler and got this error:
>  
>  
> {code:java}
>  
> [2019-07-22 16:43:31,270] {settings.py:182} INFO - settings.configure_orm(): Using pool settings. pool_size=5, pool_recycle=1800, pid=1008
>  [2019-07-22 16:43:32,387] {_init_.py:51} INFO - Using executor KubernetesExecutor
>  ____________ _____________
>  ____ |_( )________ _/_ /________ __
>  ____ /| |_ /__ __/ /_ __ /_ __ _ | /| / /
>  ___ ___ | / _ / _ _/ _ / / // /_ |/ |/ /
>  // |// // // // __/__/|_/
>  [2019-07-22 16:43:32,708] {jobs.py:1501} INFO - Starting the scheduler
>  [2019-07-22 16:43:32,708] {jobs.py:1509} INFO - Running execute loop for -1 seconds
>  [2019-07-22 16:43:32,709] {jobs.py:1510} INFO - Processing each file at most -1 times
>  [2019-07-22 16:43:32,709] {jobs.py:1513} INFO - Searching for files in /Users/xxxxx/airflow/dags
>  [2019-07-22 16:43:32,717] {jobs.py:1515} INFO - There are 21 files in /Users/xxxxx/airflow/dags
>  [2019-07-22 16:43:32,722] {kubernetes_executor.py:690} INFO - Start Kubernetes executor
>  [2019-07-22 16:43:32,776] {kubernetes_executor.py:627} INFO - When executor started up, found 0 queued task instances
>  [2019-07-22 16:43:32,777] {jobs.py:1560} INFO - Resetting orphaned tasks for active dag runs
>  [2019-07-22 16:43:32,785] {dag_processing.py:515} INFO - Launched DagFileProcessorManager with pid: 1459
>  [2019-07-22 16:43:32,798] {settings.py:53} INFO - Configured default timezone <Timezone [UTC]>
>  [2019-07-22 16:43:32,811] {kubernetes_executor.py:304} INFO - Event: and now my watch begins starting at resource_version: 0
>  [2019-07-22 16:43:32,819] {settings.py:182} INFO - settings.configure_orm(): Using pool settings. pool_size=5, pool_recycle=1800, pid=1459
>  Process DagFileProcessor22-Process:
>  Traceback (most recent call last):
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
>  self.run()
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/multiprocessing/process.py", line 114, in run
>  self._target(*self._args, **self._kwargs)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/jobs.py", line 410, in helper
>  print(e)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
>  self.logger.log(self.level, self._buffer.rstrip())
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
>  self._log(level, msg, args, **kwargs)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
>  self.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
>  self.callHandlers(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
>  hdlr.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
>  self.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
>  self.handler.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
>  StreamHandler.emit(self, record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
>  self.handleError(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
>  None, sys.stderr)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
>  _print(file, 'Traceback (most recent call last):')
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
>  file.write(str+terminator)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
>  self.logger.log(self.level, self._buffer.rstrip())
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
>  self._log(level, msg, args, **kwargs)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
>  self.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
>  self.callHandlers(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
>  hdlr.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
>  self.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
>  self.handler.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
>  StreamHandler.emit(self, record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
>  self.handleError(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
>  None, sys.stderr)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
>  _print(file, 'Traceback (most recent call last):')
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
>  file.write(str+terminator)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
>  self.logger.log(self.level, self._buffer.rstrip())
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
>  self._log(level, msg, args, **kwargs)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
>  self.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
>  self.callHandlers(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
>  hdlr.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
>  self.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
>  self.handler.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
>  StreamHandler.emit(self, record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
>  self.handleError(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
>  None, sys.stderr)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
>  _print(file, 'Traceback (most recent call last):')
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
>  file.write(str+terminator)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
>  self.logger.log(self.level, self._buffer.rstrip())
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
>  self._log(level, msg, args, **kwargs)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
>  self.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
>  self.callHandlers(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
>  hdlr.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
>  self.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
>  self.handler.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
>  StreamHandler.emit(self, record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
>  self.handleError(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
>  None, sys.stderr)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
>  _print(file, 'Traceback (most recent call last):')
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
>  file.write(str+terminator)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
>  self.logger.log(self.level, self._buffer.rstrip())
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
>  self._log(level, msg, args, **kwargs)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1286, in _log
>  self.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1296, in handle
>  self.callHandlers(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1336, in callHandlers
>  hdlr.handle(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 759, in handle
>  self.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/file_processor_handler.py", line 76, in emit
>  self.handler.emit(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 957, in emit
>  StreamHandler.emit(self, record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 889, in emit
>  self.handleError(record)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 812, in handleError
>  None, sys.stderr)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 124, in print_exception
>  _print(file, 'Traceback (most recent call last):')
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/traceback.py", line 13, in _print
>  file.write(str+terminator)
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/site-packages/airflow/utils/log/logging_mixin.py", line 95, in write
>  self.logger.log(self.level, self._buffer.rstrip())
>  File "/Users/xxxxx/anaconda2/envs/airflow-kb8/lib/python2.7/logging/_init_.py", line 1231, in log
>  self._log(level, msg, args, **kwargs)
>  File "/Users/xxxxx/anaconda2
>  
> {code}
>  
>  
>  
> Could you please take a look?



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