[GitHub] [apisix] soulbird removed a comment on issue #6719: bug: load opentelemetry so, curl /apisix/prometheus/metrics coredump

[GitBox <gi...@apache.org>]

soulbird removed a comment on issue #6719:
URL: https://github.com/apache/apisix/issues/6719#issuecomment-1079874368


   hi, according to your error log, I found two problems, one is coredumps, related errorlog:
   ```bash
   [alert] 1#1: worker process 46 exited on signal 11
   ```
   I reproduced the problem with your steps, using gdb to view the stack information:
   ```bash
   Core was generated by `nginx: worker process                                                 '.
   Program terminated with signal SIGSEGV, Segmentation fault.
   #0  0x00007f714cd9859c in CreateTraceContext(ngx_http_request_s*, ngx_variable_value_t*) () from /usr/local/openresty/nginx/modules/otel_ngx_module.so
   [Current thread is 1 (LWP 107)]
   (gdb) bt
   #0  0x00007f714cd9859c in CreateTraceContext(ngx_http_request_s*, ngx_variable_value_t*) () from /usr/local/openresty/nginx/modules/otel_ngx_module.so
   #1  0x00007f714cd98856 in StartNgxSpan(ngx_http_request_s*) () from /usr/local/openresty/nginx/modules/otel_ngx_module.so
   #2  0x000055b01c46902d in ngx_http_core_rewrite_phase (r=0x7f713a3d1840, ph=<optimized out>) at src/http/ngx_http_core_module.c:935
   #3  0x000055b01c4648f5 in ngx_http_core_run_phases (r=0x7f713a3d1840) at src/http/ngx_http_core_module.c:881
   #4  0x000055b01c46d5d0 in ngx_http_run_posted_requests (c=0x7f713aa4ecb0) at src/http/ngx_http_request.c:2435
   #5  0x000055b01c470184 in ngx_http_process_request_line (rev=0x7f713a954810) at src/http/ngx_http_request.c:1175
   #6  0x000055b01c4558c8 in ngx_epoll_process_events (cycle=<optimized out>, timer=<optimized out>, flags=<optimized out>) at src/event/modules/ngx_epoll_module.c:901
   #7  0x000055b01c44b7e4 in ngx_process_events_and_timers (cycle=cycle@entry=0x7f714ce291e0) at src/event/ngx_event.c:257
   #8  0x000055b01c453778 in ngx_worker_process_cycle (cycle=cycle@entry=0x7f714ce291e0, data=data@entry=0x1) at src/os/unix/ngx_process_cycle.c:782
   #9  0x000055b01c451df9 in ngx_spawn_process (cycle=cycle@entry=0x7f714ce291e0, proc=0x55b01c453700 <ngx_worker_process_cycle>, data=0x1, 
       name=0x55b01c584cf3 "worker process", respawn=respawn@entry=1) at src/os/unix/ngx_process.c:199
   #10 0x000055b01c45467f in ngx_reap_children (cycle=0x7f714ce291e0) at src/os/unix/ngx_process_cycle.c:654
   #11 ngx_master_process_cycle (cycle=<optimized out>) at src/os/unix/ngx_process_cycle.c:180
   #12 0x000055b01c42991e in main (argc=<optimized out>, argv=<optimized out>) at src/core/nginx.c:386
   ```
   It seems that coredumps occur in external dynamic libraries, you may need to check this yourself first
   
   Another question is about ldap, the related errorlog is:
   ```bash
   [error] 93#93: *768 [lua] plugin.lua:109: load_plugin(): failed to load plugin [ldap-auth] err: error loading module 'lualdap' from file '/usr/local/apisix//deps/lib/lua/5.1/lua
           Error loading shared library libldap-2.4.so.2: No such file or directory (needed by /usr/local/apisix//deps/lib/lua/5.1/lualdap.so), context: init_worker_by_lua*
   ```
   It looks like it's because libldap-2.4.so.2 is missing from the system. I noticed that you replaced the system's depot version in the Dockfile:
   ```bash
   RUN echo 'https://mirrors.ustc.edu.cn/alpine/v3.15/main' > /etc/apk/repositories \
       && echo 'https://mirrors.ustc.edu.cn/alpine/v3.15/community' >> /etc/apk/repositories\
       ......
   ```
   This seems to be the cause of the problem. The base image of apisix-2.12.0 is based on alpine 3.12. apisix works fine after I use the command below:
   ```bash
   $ echo 'https://mirrors.ustc.edu.cn/alpine/v3.15/main' > /etc/apk/repositories
   $ echo 'https://mirrors.ustc.edu.cn/alpine/v3.15/community' >> /etc/apk/repositories
   
   $ apk update
   $ apk add apache2-ldap
   ```
   I will continue to investigate why ldap is missing after you adjust the version of alpine


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