zbentley opened a new issue #14582:
URL: https://github.com/apache/pulsar/issues/14582
**Describe the bug**
When the C++ pulsar client tries to open a file descriptor, (e.g. creating a
client, creating a producer, or creating a consumer), this operation can fail
if the environment has too many open files.
When that failure occurs, `abort()` is sometimes called, or SIGSEGV
sometimes occurs. *Both* of these behaviors shouldn't happen; an exception
should be raised instead.
**To Reproduce**
1. Set your `ulimit` very low, e.g. 10.
2. Create a Python pulsar-client object.
3. Create consumer objects in a loop.
This sample code can help reproduce the issue.
```python
import logging
import resource
import pulsar
def main():
resource.setrlimit(resource.RLIMIT_NOFILE, (5, 5))
client = pulsar.Client(service_url='pulsar://localhost',
logger=logging.getLogger())
client.subscribe(topic='mytopic', subscription_name=f'mysub')
if __name__ == '__main__':
main()
```
**Expected behavior**
A clear and concise description of what you expected to happen.
**Example exception**
There are two failure modes:
1. A segfault.
2. An error stack like this:
```
libc++abi: terminating with uncaught exception of type
boost::wrapexcept<boost::system::system_error>: pipe_select_interrupter: Too
many open files
Fatal Python error: Aborted
```
**Environment:**
- OS: MacOS monterey.
- Client version: 2.9.1
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