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Posted to user-zh@flink.apache.org by RS <ti...@163.com> on 2022/11/22 07:13:57 UTC
Flink启动python任务异常：undefined symbol: _Py_LegacyLocaleDetected
Hi，
Flink版本：1.15.1
A机器：在A机器上创建python虚拟环境，版本3.6.8，安装flink等python包，然后打包ZIP，jxy_venv.zip，上传到HDFS上
B机器：在B机器上，主机上没有Python环境，Flink运行在K8S的docker中，docker里面也没有python环境，
C机器：在C机器上，有flink的client，存在python环境，负责启动任务
启动命令：
./bin/flink run -Dexecution.runtime-mode=BATCH -d -m 192.168.1.2:8081 -n -py /xxx/main.py -pyfs hdfs://xxx/config.py -pyarch hdfs://xxx/jxy_venv.zip#venv -pyclientexec venv/jxy_venv/bin/python
报错信息：
...
venv/jxy_venv/bin/python: symbol lookup error: venv/jxy_venv/bin/python: undefined symbol: _Py_LegacyLocaleDetected
org.apache.flink.client.program.ProgramAbortException: java.lang.RuntimeException: Python process exits with code: 127
at org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:355)
at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:222)
at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114)
at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:836)
at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:247)
at org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1078)
at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1156)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1156)
Caused by: java.lang.RuntimeException: Python process exits with code: 127
at org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:130)
... 16 more
请问下，这种情况需要怎么处理 ？
flink的环境中，一定要安装python命令吗？
Thanks
Re:Re:Re: Flink启动python任务异常：undefined symbol: _Py_LegacyLocaleDetected
Posted by RS <ti...@163.com>.
Hi,
我单独测试了下python的虚拟环境使用，发现目标机器必须存在python的环境，不然复制了虚拟环境过去也是无法执行的，
还以为虚拟环境复制过去就可以跑起来了，和我想的不太一样，哈哈~
3.6版本报错
# ./python
./python: error while loading shared libraries: libpython3.6m.so.1.0: cannot open shared object file: No such file or directory
3.9版本报错
# ./venv/bin/python
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Python path configuration:
PYTHONHOME = (not set)
PYTHONPATH = (not set)
program name = './venv/bin/python'
isolated = 0
environment = 1
user site = 1
import site = 1
sys._base_executable = '/root/tmp/venv/bin/python'
sys.base_prefix = '/usr/local'
sys.base_exec_prefix = '/usr/local'
sys.platlibdir = 'lib'
sys.executable = '/root/tmp/venv/bin/python'
sys.prefix = '/usr/local'
sys.exec_prefix = '/usr/local'
sys.path = [
'/usr/local/lib/python39.zip',
'/usr/local/lib/python3.9',
'/usr/local/lib/lib-dynload',
]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'
Current thread 0x00007ff010275740 (most recent call first):
<no Python frame>
Thanks
在 2022-11-23 09:25:04，"RS" <ti...@163.com> 写道：
>Hi,
>我这边使用的python命令构建的，没有用conda，这个应该没有影响吧
>python3 -m venv jxy_venv
>
>
>我启动了一个单点的flink测试，本机启动，有python环境，测试是可以运行成功的
>
>
>
>Thanks
>
>
>
>
>
>在 2022-11-22 15:39:48，"Xingbo Huang" <hx...@gmail.com> 写道：
>>Hi RS,
>>
>>你是使用conda构建的venv吗，可以参考PyFlink 准备环境的文档[1]
>>
>>Best,
>>Xingbo
>>
>>[1]
>>https://pyflink.readthedocs.io/en/latest/getting_started/installation/prepare.html#create-a-virtual-environment-using-conda
>>
>>RS <ti...@163.com> 于2022年11月22日周二 15:14写道：
>>
>>> Hi，
>>> Flink版本：1.15.1
>>>
>>>
>>> A机器：在A机器上创建python虚拟环境，版本3.6.8，安装flink等python包，然后打包ZIP，jxy_venv.zip，上传到HDFS上
>>> B机器：在B机器上，主机上没有Python环境，Flink运行在K8S的docker中，docker里面也没有python环境，
>>> C机器：在C机器上，有flink的client，存在python环境，负责启动任务
>>>
>>>
>>> 启动命令：
>>> ./bin/flink run -Dexecution.runtime-mode=BATCH -d -m 192.168.1.2:8081 -n
>>> -py /xxx/main.py -pyfs hdfs://xxx/config.py -pyarch
>>> hdfs://xxx/jxy_venv.zip#venv -pyclientexec venv/jxy_venv/bin/python
>>>
>>>
>>> 报错信息：
>>> ...
>>> venv/jxy_venv/bin/python: symbol lookup error: venv/jxy_venv/bin/python:
>>> undefined symbol: _Py_LegacyLocaleDetected
>>> org.apache.flink.client.program.ProgramAbortException:
>>> java.lang.RuntimeException: Python process exits with code: 127
>>> at
>>> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:140)
>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>> at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>>> at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>> at java.lang.reflect.Method.invoke(Method.java:498)
>>> at
>>> org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:355)
>>> at
>>> org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:222)
>>> at
>>> org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114)
>>> at
>>> org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:836)
>>> at
>>> org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:247)
>>> at
>>> org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1078)
>>> at
>>> org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1156)
>>> at java.security.AccessController.doPrivileged(Native Method)
>>> at javax.security.auth.Subject.doAs(Subject.java:422)
>>> at
>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
>>> at
>>> org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
>>> at
>>> org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1156)
>>> Caused by: java.lang.RuntimeException: Python process exits with code: 127
>>> at
>>> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:130)
>>> ... 16 more
>>>
>>>
>>> 请问下，这种情况需要怎么处理 ？
>>> flink的环境中，一定要安装python命令吗？
>>>
>>>
>>> Thanks
>>>
>>>
Re: Re: Flink启动python任务异常：undefined symbol: _Py_LegacyLocaleDetected
Posted by Xingbo Huang <hx...@gmail.com>.
conda构建的venv会把机器底层一些c的库包括进来，会比较全。通过python venv包构建的虚拟环境可能会因为跨机器出现问题。
Best,
Xingbo
RS <ti...@163.com> 于2022年11月23日周三 09:25写道：
> Hi,
> 我这边使用的python命令构建的，没有用conda，这个应该没有影响吧
> python3 -m venv jxy_venv
>
>
> 我启动了一个单点的flink测试，本机启动，有python环境，测试是可以运行成功的
>
>
>
> Thanks
>
>
>
>
>
> 在 2022-11-22 15:39:48，"Xingbo Huang" <hx...@gmail.com> 写道：
> >Hi RS,
> >
> >你是使用conda构建的venv吗，可以参考PyFlink 准备环境的文档[1]
> >
> >Best,
> >Xingbo
> >
> >[1]
> >
> https://pyflink.readthedocs.io/en/latest/getting_started/installation/prepare.html#create-a-virtual-environment-using-conda
> >
> >RS <ti...@163.com> 于2022年11月22日周二 15:14写道：
> >
> >> Hi，
> >> Flink版本：1.15.1
> >>
> >>
> >>
> A机器：在A机器上创建python虚拟环境，版本3.6.8，安装flink等python包，然后打包ZIP，jxy_venv.zip，上传到HDFS上
> >> B机器：在B机器上，主机上没有Python环境，Flink运行在K8S的docker中，docker里面也没有python环境，
> >> C机器：在C机器上，有flink的client，存在python环境，负责启动任务
> >>
> >>
> >> 启动命令：
> >> ./bin/flink run -Dexecution.runtime-mode=BATCH -d -m 192.168.1.2:8081
> -n
> >> -py /xxx/main.py -pyfs hdfs://xxx/config.py -pyarch
> >> hdfs://xxx/jxy_venv.zip#venv -pyclientexec venv/jxy_venv/bin/python
> >>
> >>
> >> 报错信息：
> >> ...
> >> venv/jxy_venv/bin/python: symbol lookup error: venv/jxy_venv/bin/python:
> >> undefined symbol: _Py_LegacyLocaleDetected
> >> org.apache.flink.client.program.ProgramAbortException:
> >> java.lang.RuntimeException: Python process exits with code: 127
> >> at
> >> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:140)
> >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >> at
> >>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> >> at
> >>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> >> at java.lang.reflect.Method.invoke(Method.java:498)
> >> at
> >>
> org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:355)
> >> at
> >>
> org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:222)
> >> at
> >> org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114)
> >> at
> >>
> org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:836)
> >> at
> >> org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:247)
> >> at
> >>
> org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1078)
> >> at
> >>
> org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1156)
> >> at java.security.AccessController.doPrivileged(Native Method)
> >> at javax.security.auth.Subject.doAs(Subject.java:422)
> >> at
> >>
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
> >> at
> >>
> org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
> >> at
> >> org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1156)
> >> Caused by: java.lang.RuntimeException: Python process exits with code:
> 127
> >> at
> >> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:130)
> >> ... 16 more
> >>
> >>
> >> 请问下，这种情况需要怎么处理 ？
> >> flink的环境中，一定要安装python命令吗？
> >>
> >>
> >> Thanks
> >>
> >>
>
Re:Re: Flink启动python任务异常：undefined symbol: _Py_LegacyLocaleDetected
Posted by RS <ti...@163.com>.
Hi,
我这边使用的python命令构建的，没有用conda，这个应该没有影响吧
python3 -m venv jxy_venv
我启动了一个单点的flink测试，本机启动，有python环境，测试是可以运行成功的
Thanks
在 2022-11-22 15:39:48，"Xingbo Huang" <hx...@gmail.com> 写道：
>Hi RS,
>
>你是使用conda构建的venv吗，可以参考PyFlink 准备环境的文档[1]
>
>Best,
>Xingbo
>
>[1]
>https://pyflink.readthedocs.io/en/latest/getting_started/installation/prepare.html#create-a-virtual-environment-using-conda
>
>RS <ti...@163.com> 于2022年11月22日周二 15:14写道：
>
>> Hi，
>> Flink版本：1.15.1
>>
>>
>> A机器：在A机器上创建python虚拟环境，版本3.6.8，安装flink等python包，然后打包ZIP，jxy_venv.zip，上传到HDFS上
>> B机器：在B机器上，主机上没有Python环境，Flink运行在K8S的docker中，docker里面也没有python环境，
>> C机器：在C机器上，有flink的client，存在python环境，负责启动任务
>>
>>
>> 启动命令：
>> ./bin/flink run -Dexecution.runtime-mode=BATCH -d -m 192.168.1.2:8081 -n
>> -py /xxx/main.py -pyfs hdfs://xxx/config.py -pyarch
>> hdfs://xxx/jxy_venv.zip#venv -pyclientexec venv/jxy_venv/bin/python
>>
>>
>> 报错信息：
>> ...
>> venv/jxy_venv/bin/python: symbol lookup error: venv/jxy_venv/bin/python:
>> undefined symbol: _Py_LegacyLocaleDetected
>> org.apache.flink.client.program.ProgramAbortException:
>> java.lang.RuntimeException: Python process exits with code: 127
>> at
>> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:140)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>> at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> at java.lang.reflect.Method.invoke(Method.java:498)
>> at
>> org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:355)
>> at
>> org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:222)
>> at
>> org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114)
>> at
>> org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:836)
>> at
>> org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:247)
>> at
>> org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1078)
>> at
>> org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1156)
>> at java.security.AccessController.doPrivileged(Native Method)
>> at javax.security.auth.Subject.doAs(Subject.java:422)
>> at
>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
>> at
>> org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
>> at
>> org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1156)
>> Caused by: java.lang.RuntimeException: Python process exits with code: 127
>> at
>> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:130)
>> ... 16 more
>>
>>
>> 请问下，这种情况需要怎么处理 ？
>> flink的环境中，一定要安装python命令吗？
>>
>>
>> Thanks
>>
>>
Re: Flink启动python任务异常：undefined symbol: _Py_LegacyLocaleDetected
Posted by Xingbo Huang <hx...@gmail.com>.
Hi RS,
你是使用conda构建的venv吗，可以参考PyFlink 准备环境的文档[1]
Best,
Xingbo
[1]
https://pyflink.readthedocs.io/en/latest/getting_started/installation/prepare.html#create-a-virtual-environment-using-conda
RS <ti...@163.com> 于2022年11月22日周二 15:14写道：
> Hi，
> Flink版本：1.15.1
>
>
> A机器：在A机器上创建python虚拟环境，版本3.6.8，安装flink等python包，然后打包ZIP，jxy_venv.zip，上传到HDFS上
> B机器：在B机器上，主机上没有Python环境，Flink运行在K8S的docker中，docker里面也没有python环境，
> C机器：在C机器上，有flink的client，存在python环境，负责启动任务
>
>
> 启动命令：
> ./bin/flink run -Dexecution.runtime-mode=BATCH -d -m 192.168.1.2:8081 -n
> -py /xxx/main.py -pyfs hdfs://xxx/config.py -pyarch
> hdfs://xxx/jxy_venv.zip#venv -pyclientexec venv/jxy_venv/bin/python
>
>
> 报错信息：
> ...
> venv/jxy_venv/bin/python: symbol lookup error: venv/jxy_venv/bin/python:
> undefined symbol: _Py_LegacyLocaleDetected
> org.apache.flink.client.program.ProgramAbortException:
> java.lang.RuntimeException: Python process exits with code: 127
> at
> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:140)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:355)
> at
> org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:222)
> at
> org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:114)
> at
> org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:836)
> at
> org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:247)
> at
> org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1078)
> at
> org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1156)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
> at
> org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
> at
> org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1156)
> Caused by: java.lang.RuntimeException: Python process exits with code: 127
> at
> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:130)
> ... 16 more
>
>
> 请问下，这种情况需要怎么处理 ？
> flink的环境中，一定要安装python命令吗？
>
>
> Thanks
>
>