On 2023-12-26 11:19, Lakshmi Deverkonda via lttng-dev wrote:
Hi,
I'm observing an issue recently wrt import of python3 lttng module.
Following is the error and need your help to find out what is wrong.
import lttngust
Exception in thread system:
Traceback (most recent call last):
File "/usr/lib/python3.7/threading.py", line 917, in _bootstrap_inner
self.run()
File "/usr/lib/python3.7/threading.py", line 865, in run
self._target(*self._args, **self._kwargs)
File "/usr/local/lib/python3.7/dist-packages/lttngust/agent.py", line 291,
in _client_thread_target
client = _TcpClient(name, _SESSIOND_HOST, port, reg_queue)
File "/usr/local/lib/python3.7/dist-packages/lttngust/agent.py", line 76,
in __init__
raise e
File "/usr/local/lib/python3.7/dist-packages/lttngust/agent.py", line 73,
in __init__
self._log_handler = lttngust.loghandler._Handler()
File "/usr/local/lib/python3.7/dist-packages/lttngust/loghandler.py", line
32, in __init__
self.agent_lib = ctypes.cdll.LoadLibrary(_Handler._LIB_NAME)
File "/usr/lib/python3.7/ctypes/__init__.py", line 434, in LoadLibrary
return self._dlltype(name)
File "/usr/lib/python3.7/ctypes/__init__.py", line 356, in __init__
self._handle = _dlopen(self._name, mode)
*OSError: liblttng-ust-python-agent.so: cannot open shared object file: No
such file or directory*
I have installed *liblttng-ust-python-agent.so*
*
*
/# ldconfig -p | grep liblttng
liblttng-ust.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust.so.0
liblttng-ust-tracepoint.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-tracepoint.so.0
*liblttng-ust-python-agent.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-python-agent.so.0*
liblttng-ust-pthread-wrapper.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-pthread-wrapper.so.0
liblttng-ust-libc-wrapper.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-libc-wrapper.so.0
liblttng-ust-fork.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-fork.so.0
liblttng-ust-fd.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-fd.so.0
liblttng-ust-dl.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-dl.so.0
liblttng-ust-cyg-profile.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-cyg-profile.so.0
liblttng-ust-cyg-profile-fast.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-cyg-profile-fast.so.0
liblttng-ust-ctl.so.4 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ust-ctl.so.4
liblttng-ctl.so.0 (libc6,x86-64) =>
/lib/x86_64-linux-gnu/liblttng-ctl.so.0
Regards,
Lakshmi
Hi,
You might be missing the unversionned symlink from '.so' to '.so.0', like so:
liblttng-ust-python-agent.so -> liblttng-ust-python-agent.so.0
Cheers,
Michael
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