zh417233956 opened a new issue #2394: URL: https://github.com/apache/apisix/issues/2394
### Issue description 访问：http://192.168.5.139/apisix/prometheus/metrics，出现：metrics 500 Internal Server Error apisix reload 以后正常，几分钟以后，仍然出现：metrics 500 Internal Server Error ### Environment * apisix version (cmd: `apisix version`):1.5 * OS:CentOS 7.6 ### Minimal test code / Steps to reproduce the issue 1. http://192.168.5.139/apisix/prometheus/metrics ### What's the actual result? (including assertion message & call stack if applicable) metrics 500 Internal Server Error error.log: 2020/10/12 12:21:09 [error] 31448#31448: *217543 lua entry thread aborted: runtime error: /usr/local/apisix/apisix/plugins/prometheus/exporter.lua:181: attempt to compare number with string stack traceback: coroutine 0: /usr/local/apisix/apisix/plugins/prometheus/exporter.lua: in function 'set_modify_index' /usr/local/apisix/apisix/plugins/prometheus/exporter.lua:233: in function 'etcd_modify_index' /usr/local/apisix/apisix/plugins/prometheus/exporter.lua:262: in function 'handler' /usr/local/apisix/apisix/plugin.lua:209: in function 'handler' /usr/local/apisix//deps/share/lua/5.1/resty/radixtree.lua:739: in function 'dispatch' /usr/local/apisix/apisix/http/router/radixtree_uri.lua:110: in function 'match' /usr/local/apisix/apisix/init.lua:336: in function 'http_access_phase' access_by_lua(nginx.conf:179):2: in main chunk, client: 192.168.6.88, server: , request: "GET /apisix/prometheus/metrics HTTP/1.1", host: "192.168.5.139:80" ### What's the expected result? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
