membphis commented on a change in pull request #1888:
URL: https://github.com/apache/incubator-apisix/pull/1888#discussion_r460458881
##########
File path: apisix/plugins/prometheus/exporter.lua
##########
@@ -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
Review comment:
we'd better clear the `key_values`, it is safer.
##########
File path: apisix/plugins/prometheus/exporter.lua
##########
@@ -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:
code style: two blank lines between different functions.
##########
File path: apisix/plugins/prometheus/exporter.lua
##########
@@ -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()
+ local global_max_idx = 0
+
+ -- routes
+ local routes, routes_ver = get_routes()
+ global_max_idx = set_modify_index("routes", routes, routes_ver,
global_max_idx)
+
+ -- services
+ local services, services_ver = get_services()
+ global_max_idx = set_modify_index("services", services, services_ver,
global_max_idx)
+
+ -- ssls
+ local ssls, ssls_ver = get_ssls()
+ global_max_idx = set_modify_index("ssls", ssls, ssls_ver, global_max_idx)
+
+ -- consumers
+ local consumers, consumers_ver = get_consumers()
+ global_max_idx = set_modify_index("consumers", consumers, consumers_ver,
global_max_idx)
+
+ -- consumers
+ local consumers, consumers_ver = get_consumers()
+ global_max_idx = set_modify_index("consumers", consumers, consumers_ver,
global_max_idx)
+
+ -- global_rules
+ local global_rules = router.global_rules
+ if global_rules then
+ global_max_idx = set_modify_index("global_rules", global_rules.values,
+ global_rules.conf_version, global_max_idx)
+ end
+
+ -- upstreams
+ local upstreams, upstreams_ver = get_upstreams()
+ global_max_idx = set_modify_index("upstreams", upstreams, upstreams_ver,
global_max_idx)
+
+ -- global max
+ key_values[1] = "max_modify_index"
Review comment:
clear table `key_values` too
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