mediaMicroservices in K8 cluster: lua entry thread aborted: runtime error: unknown reason

[abmuslim]

I deployed the mediaMicroservice in my 3-node Kubernetes cluster. When trying to register movies and cast information using the following command:

python3 scripts/write_movie_info.py -c <path-to-casts.json> -m <path-to-movies.json> --server_address <nginx_server> && scripts/register_users.sh && scripts/register_movies.sh

The command runs successfully and outputs 18194 casts finished, 1000 movies finished. However, when I check the logs of my nginx-web-server pod, I see the following errors:

k logs nginx-web-server-579975cd6-9n59z -c nginx-web-server -n test --tail 50
.../openresty/nginx/lua-scripts/wrk2-api/movie/register.lua:36: in function 'RegisterMovie'
content_by_lua(nginx.conf:77):3: in main chunk, client: 127.0.0.1, server: localhost, request: "POST /wrk2-api/movie/register HTTP/1.1", host: "127.0.0.1:8080"
2024/09/10 17:17:19 [error] 22#22: *95640 lua entry thread aborted: runtime error: unknown reason
stack traceback:
coroutine 0:
[C]: in function 'error'
/gen-lua/media_service_MovieIdService.lua:326: in function 'recv_RegisterMovieId'
/gen-lua/media_service_MovieIdService.lua:299: in function 'RegisterMovieId'
.../openresty/nginx/lua-scripts/wrk2-api/movie/register.lua:36: in function 'RegisterMovie'
content_by_lua(nginx.conf:77):3: in main chunk, client: 127.0.0.1, server: localhost, request: "POST /wrk2-api/movie/register HTTP/1.1", host: "127.0.0.1:8080"
2024/09/10 17:17:19 [error] 8#8: *95642 lua entry thread aborted: runtime error: unknown reason
stack traceback:
coroutine 0:
[C]: in function 'error'
/gen-lua/media_service_MovieIdService.lua:326: in function 'recv_RegisterMovieId'
/gen-lua/media_service_MovieIdService.lua:299: in function 'RegisterMovieId'
.../openresty/nginx/lua-scripts/wrk2-api/movie/register.lua:36: in function 'RegisterMovie'
content_by_lua(nginx.conf:77):3: in main chunk, client: 127.0.0.1, server: localhost, request: "POST /wrk2-api/movie/register HTTP/1.1", host: "127.0.0.1:8080"
2024/09/10 17:17:19 [error] 32#32: *95644 lua entry thread aborted: runtime error: unknown reason
stack traceback:
coroutine 0:
[C]: in function 'error'
/gen-lua/media_service_MovieIdService.lua:326: in function 'recv_RegisterMovieId'
/gen-lua/media_service_MovieIdService.lua:299: in function 'RegisterMovieId'
.../openresty/nginx/lua-scripts/wrk2-api/movie/register.lua:36: in function 'RegisterMovie'
content_by_lua(nginx.conf:77):3: in main chunk, client: 127.0.0.1, server: localhost, request: "POST /wrk2-api/movie/register HTTP/1.1", host: "127.0.0.1:8080"
2024/09/10 17:17:19 [error] 8#8: *95646 lua entry thread aborted: runtime error: unknown reason
stack traceback:
coroutine 0:
[C]: in function 'error'
/gen-lua/media_service_MovieIdService.lua:326: in function 'recv_RegisterMovieId'
/gen-lua/media_service_MovieIdService.lua:299: in function 'RegisterMovieId'
.../openresty/nginx/lua-scripts/wrk2-api/movie/register.lua:36: in function 'RegisterMovie'
content_by_lua(nginx.conf:77):3: in main chunk, client: 127.0.0.1, server: localhost, request: "POST /wrk2-api/movie/register HTTP/1.1", host: "127.0.0.1:8080"
2024/09/10 17:17:19 [error] 8#8: *95648 lua entry thread aborted: runtime error: unknown reason
stack traceback:
coroutine 0:
[C]: in function 'error'
/gen-lua/media_service_MovieIdService.lua:326: in function 'recv_RegisterMovieId'
/gen-lua/media_service_MovieIdService.lua:299: in function 'RegisterMovieId'
.../openresty/nginx/lua-scripts/wrk2-api/movie/register.lua:36: in function 'RegisterMovie'
content_by_lua(nginx.conf:77):3: in main chunk, client: 127.0.0.1, server: localhost, request: "POST /wrk2-api/movie/register HTTP/1.1", host: "127.0.0.1:8080"
2024/09/10 17:17:19 [error] 22#22: *95650 lua entry thread aborted: runtime error: unknown reason
stack traceback:
coroutine 0:
[C]: in function 'error'
/gen-lua/media_service_MovieIdService.lua:326: in function 'recv_RegisterMovieId'
/gen-lua/media_service_MovieIdService.lua:299: in function 'RegisterMovieId'
.../openresty/nginx/lua-scripts/wrk2-api/movie/register.lua:36: in function 'RegisterMovie'
content_by_lua(nginx.conf:77):3: in main chunk, client: 127.0.0.1, server: localhost, request: "POST /wrk2-api/movie/register HTTP/1.1", host: "127.0.0.1:8080

Has anyone faced a similar issue, or is there any guide that could help resolve this?

[ansaschmulbach]

I'm getting this error too by the way; I'm not using Kubernetes, I'm using just Docker.

[Nighmared]

I have been working on this as well.
There are two kinds of errors being logged. One of them relates to a 'len' function. I haven't been able to fix this but it's not too common and doesn't seem to influence overall functionality. The other one is the one your logs show, and it occurs when the command you mentioned is run more than once, since mongodb will throw errors when the application tries to insert duplicate movies,casts, plots etc.