moonming commented on a change in pull request #1888:
URL: https://github.com/apache/incubator-apisix/pull/1888#discussion_r459811000
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File path: apisix/plugins/prometheus/exporter.lua
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@@ -152,9 +165,70 @@ local function nginx_status()
label_values[1] = name
metrics.connections:set(val[0], label_values)
+
end
end
+local key_values = {}
+local function set_modify_index(key, items, items_ver, global_max_index)
+ local max_idx = 0
+
+ if items_ver and items then
+ for _, item in ipairs(items) do
+ if type(item) == "table" and item.modifiedIndex > max_idx then
+ max_idx = item.modifiedIndex
+ end
+ end
+ end
+
+ key_values[1] = key
+ metrics.etcd_modify_indexes:set(max_idx, key_values)
+
+
+ global_max_index = max_idx > global_max_index and max_idx or
global_max_index
+
+ return global_max_index
+end
+local function etcd_modify_index()
Review comment:
need test cases for this function
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