* feat: add more metrics for prometheus
* test: add test cases
* fix: check lint error
* remove hostname metrics. -> can't save string value.
* add more index
* add X-Etcd-Index
* fix lint
* test: add more test cases
* fix: Avoid the index to exceed 1000 by updating other keys that will causing a full reload
* add prev_index
* fix lint
* fix: fetch key first
* fix: test error
* fix update version only when waitdir error is timeout
* test
* fix: sleep more time
* fix: code style
* fix: code style
* bugfix(lrucache): one common use case for this library is avoid the so-called "dog-pile effect",
that is, to limit concurrent backend queries for the same key when a cache miss happens.
* bugfix: catch the error messag by pcall, it may fail when generate new validator.
* bugfix: to get the HTTP request header by `ngx.var.*`, we need to convert
the name to lower case with dashes replaced by underscores.
more information:
http://nginx.org/en/docs/http/ngx_http_core_module.html#var_http_
* change: the key should be a string object when fetching a value from `ctx.var`.
* bug(make lint): If the code style is bad, do exit with code 1.
* change: don't strip square brackets from the IPv6
The OpenResty APIs require the IPv6 literal wrapped inside a square brackets.
Also add tests for IPv6 upstream and update lua-resty-ipmatcher to 0.3.
Fix#816.
