OTLP File exporter may crash if create thread failed #3011
Description
Describe your environment
OS: Linux
Steps to reproduce
We have a internal prometheus file exporter which just like OTLP file exporter, and it may lead to crash when creating thread failed.
I think there is simular problem in OTLP file exporters.
Additional context
(gdb) bt
#0 0x00007f2882895387 in raise () from /lib64/libc.so.6
#1 0x00007f2882896a78 in abort () from /lib64/libc.so.6
#2 0x00007f2882f90a95 in __gnu_cxx::__verbose_terminate_handler() () from /lib64/libstdc++.so.6
#3 0x00007f2882f8ea06 in ?? () from /lib64/libstdc++.so.6
#4 0x00007f2882f8d9b9 in ?? () from /lib64/libstdc++.so.6
#5 0x00007f2882f8e624 in __gxx_personality_v0 () from /lib64/libstdc++.so.6
#6 0x00007f288ad2b8e3 in ?? () from /lib64/libgcc_s.so.1
#7 0x00007f288ad2be17 in _Unwind_Resume () from /lib64/libgcc_s.so.1
#8 0x00007f288f69f226 in rpc::telemetry::exporter::metrics::PrometheusFileBackend::AddMetricData (this=<optimized out>, data=...)
at /data/devops/workspace/p-4943d876cb734a609b55ad5c740c36ff/src/pool/0/server/main/src/server_frame/rpc/telemetry/exporter/prometheus_file_exporter.cpp:636
#9 0x00007f288f69bdbd in rpc::telemetry::exporter::metrics::PrometheusFileExporter::Export (this=<optimized out>, data=...)
at /data/devops/workspace/p-4943d876cb734a609b55ad5c740c36ff/src/pool/0/server/main/src/server_frame/rpc/telemetry/exporter/prometheus_file_exporter.cpp:1028PrometheusFileBackend::AddMetricData calls SpawnBackgroundWorkThread() and the implementation just like OtlpFileSystemBackend::SpawnBackgroundWorkThread().