johnxiaohe commented on issue #10926:
URL: https://github.com/apache/apisix/issues/10926#issuecomment-2242568655
> please update this thread when you encounter any clues on how to reproduce
this.
`2024/07/22 06:27:39 [error] 58#58: *29775831 lua user thread aborted:
runtime error: /usr/local/openresty/lualib/ngx/semaphore.lua:129: attempt to
perform arithmetic on a nil value
stack traceback:
coroutine 0:
/usr/local/openresty/lualib/ngx/semaphore.lua: in function 'wait'
/usr/local/apisix//deps/share/lua/5.1/resty/etcd/v3.lua:510: in
function 'refresh_jwt_token'
/usr/local/apisix//deps/share/lua/5.1/resty/etcd/v3.lua:205: in
function 'keepalive'
/usr/local/apisix/apisix/core/etcd.lua:515: in function 'keepalive'
/usr/local/apisix/apisix/plugins/server-info.lua:221: in function
'report'
/usr/local/apisix/apisix/plugins/server-info.lua:292: in function
</usr/local/apisix/apisix/plugins/server-info.lua:287>
coroutine 1:
[C]: in function 'thread_wait'
/usr/local/apisix/apisix/timers.lua:52: in function
</usr/local/apisix/apisix/timers.lua:32>
[C]: in function 'pcall'
/usr/local/apisix/apisix/core/timer.lua:40: in function
</usr/local/apisix/apisix/core/timer.lua:36>
[C]: in function 'pcall'
/usr/local/apisix/apisix/core/timer.lua:63: in function
</usr/local/apisix/apisix/core/timer.lua:56>, context: ngx.timer
2024/07/22 06:27:39 [error] 58#58: *29775831 [lua] timers.lua:54: failed to
wait threads, context: ngx.timer`
The phenomenon does not occur regularly, sometimes it takes a few hours,
sometimes a few days
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