mirror of
https://github.com/ntop/ntopng.git
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85 lines
No EOL
2.4 KiB
Lua
85 lines
No EOL
2.4 KiB
Lua
--
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-- (C) 2019-24 - ntop.org
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--
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local dirs = ntop.getDirs()
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package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
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package.path = dirs.installdir .. "/scripts/lua/modules/timeseries/?.lua;" .. package.path
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package.path = dirs.installdir .. "/scripts/lua/modules/timeseries/schemas/?.lua;" .. package.path
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-- Import ntop_utils instead of lua_utils, it's a lot lighter
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require "ntop_utils"
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local redis_api = require "redis_api"
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local ifid = getSystemInterfaceId()
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local hits_key = "ntopng.cache.redis.stats"
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local hits_stats = ntop.getCacheStats()
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local old_hits_stats = ntop.getCache(hits_key)
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-- ##############################################
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local read_op = {
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num_get = true,
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num_hget = true,
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num_hgetall = true,
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num_hkeys = true,
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num_llen = true,
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num_lpop_rpop = true,
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num_strlen = true,
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num_ttl = true,
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num_resolver_get_address = true
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}
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local write_op = {
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num_set = true,
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num_hset = true,
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num_lpush_rpush = true,
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num_trim = true,
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num_del = true,
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num_hdel = true,
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num_expire = true,
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num_resolver_set_address = true
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}
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if redis_api.redisTimeseriesEnabled() then
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require "ts_minute"
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-- Include only here, otherwise it's a useless import
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local json = require("dkjson")
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local ts_utils = require("ts_utils_core")
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local when = os.time()
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local stats = redis_api.getStats()
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local reads = 0
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local writes = 0
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if(not isEmptyString(old_hits_stats)) then
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old_hits_stats = json.decode(old_hits_stats) or {}
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else
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old_hits_stats = {}
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end
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if stats["memory"] then
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ts_utils.append("redis:memory", { ifid = ifid, resident_bytes = stats["memory"] }, when)
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end
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if stats["dbsize"] then
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ts_utils.append("redis:keys", {ifid = ifid, num_keys = stats["dbsize"]}, when)
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end
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for key, val in pairs(hits_stats) do
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if(old_hits_stats[key] ~= nil) then
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local delta = math.max(val - old_hits_stats[key], 0)
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if read_op[key] then
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reads=reads+delta
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elseif write_op[key] then
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writes=writes+delta
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end
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-- Dump the delta value as a gauge
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ts_utils.append("redis:hits", {ifid = ifid, command = key, num_calls = delta}, when)
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end
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end
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ts_utils.append("redis:reads_writes_v2", {ifid = ifid, num_reads = reads, num_writes = writes}, when)
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ntop.setCache(hits_key, json.encode(hits_stats))
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end |