ntopng/scripts/lua/monitor/redis_monitor.lua
2022-02-11 12:07:23 +01:00

200 lines
7.5 KiB
Lua

--
-- (C) 2013-22 - ntop.org
--
local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
if((dirs.scriptdir ~= nil) and (dirs.scriptdir ~= "")) then package.path = dirs.scriptdir .. "/lua/modules/?.lua;" .. package.path end
require "lua_utils"
local page_utils = require("page_utils")
local script_manager = require("script_manager")
local graph_utils = require("graph_utils")
local charts_available = script_manager.systemTimeseriesEnabled()
if not isAllowedSystemInterface() then
return
end
sendHTTPContentTypeHeader('text/html')
page_utils.set_active_menu_entry(page_utils.menu_entries.redis_monitor)
dofile(dirs.installdir .. "/scripts/lua/inc/menu.lua")
local page = _GET["page"] or "overview"
local url = script_manager.getMonitorUrl("redis_monitor.lua") .. "?ifid=" .. getInterfaceId(ifname)
page_utils.print_navbar("Redis", url,
{
{
active = page == "overview" or not page,
page_name = "overview",
label = "<i class=\"fas fa-lg fa-home\"></i>",
},
{
active = page == "stats",
page_name = "stats",
label = "<i class=\"fas fa-lg fa-wrench\"></i>",
},
{
hidden = not charts_available,
active = page == "historical",
page_name = "historical",
label = "<i class='fas fa-lg fa-chart-area'></i>",
},
}
)
-- #######################################################
if(page == "overview") then
local fa_external = "<i class='fas fa-external-link-alt'></i>"
local tags = {ifid=getSystemInterfaceId()}
print("<table class=\"table table-bordered table-striped\">\n")
if not ntop.isWindows() then
-- NOTE: on Windows, some stats are missing from script.getRedisStatus()
print("<tr><td nowrap width='30%'><b>".. i18n("system_stats.health") .."</b><br><small>"..i18n("system_stats.redis.short_desc_redis_health").."</small></td><td></td><td><span id='throbber' class='spinner-border redis-info-load spinner-border-sm text-primary' role='status'><span class='sr-only'>Loading...</span></span> <span id=\"redis-health\"></span></td></tr>\n")
end
print("<tr><td nowrap width='30%'><b>".. i18n("about.ram_memory") .."</b><br><small>"..i18n("system_stats.redis.short_desc_redis_ram_memory").."</small></td>")
print("<td class='text-center' width=5%>")
print(ternary(charts_available, "<A HREF='"..url.."&page=historical&ts_schema=redis:memory'><i class='fas fa-lg fa-chart-area'></i></A>", ""))
print("</td><td><span id='throbber' class='spinner-border redis-info-load spinner-border-sm text-primary' role='status'><span class='sr-only'>Loading...</span></span> <span id=\"redis-info-memory\"></span></td></tr>\n")
if not ntop.isWindows() then
print("<tr><td nowrap width='30%'><b>".. i18n("system_stats.redis.redis_keys") .."</b><br><small>"..i18n("system_stats.redis.short_desc_redis_keys").."</small></td>")
print("<td class='text-center' width=5%>")
print(ternary(charts_available, "<A HREF='"..url.."&page=historical&ts_schema=redis:keys'><i class='fas fa-chart-area fa-lg'></i></A>", ""))
print("</td><td><span id='throbber' class='spinner-border redis-info-load spinner-border-sm text-primary' role='status'><span class='sr-only'>Loading...</span></span> <span id=\"redis-info-keys\"></span></td></tr>\n")
end
print[[<script>
var last_keys, last_memory
var health_descr = {
]]
print('"green" : {"status" : "<span class=\'badge bg-success\'>'..i18n("system_stats.redis.redis_health_green")..'</span>", "descr" : "<small>'..i18n("system_stats.redis.redis_health_green_descr")..'</small>"},')
print('"red" : {"status" : "<span class=\'badge bg-danger\'>'..i18n("system_stats.redis.redis_health_red")..'</span>", "descr" : "<small>'..i18n("system_stats.redis.redis_health_red_descr", {product = ntop.getInfo()["product"]})..'</small>"},')
print[[
};
function refreshRedisStats() {
$.get("]] print(ntop.getHttpPrefix()) print[[/lua/rest/v2/get/redis/redis_info.lua", function(info) {
$(".redis-info-load").hide();
info = info.rsp;
if(typeof info.health !== "undefined" && health_descr[info.health]) {
$("#redis-health").html(health_descr[info.health]["status"] + "<br>" + health_descr[info.health]["descr"]);
}
if(typeof info.dbsize !== "undefined") {
$("#redis-info-keys").html(NtopUtils.formatValue(info.dbsize) + " ");
if(typeof last_keys !== "undefined")
$("#redis-info-keys").append(NtopUtils.drawTrend(info.dbsize, last_keys));
last_keys = info.dbsize;
}
if(typeof info.memory !== "undefined") {
$("#redis-info-memory").html(NtopUtils.bytesToVolume(info.memory) + " ");
if(typeof last_memory !== "undefined")
$("#redis-info-memory").append(NtopUtils.drawTrend(info.memory, last_memory));
last_memory = info.memory;
}
}).fail(function() {
$(".redis-info-load").hide();
});
}
setInterval(refreshRedisStats, 5000);
refreshRedisStats();
</script>
]]
print("</table>\n")
elseif(page == "stats") then
print [[
<div id="table-redis-stats"></div>
<script type='text/javascript'>
$("#table-redis-stats").datatable({
title: "",
perPage: 100,
hidePerPage: true,
url: "]] print(ntop.getHttpPrefix()) print("/lua/rest/v2/get/redis/redis_stats.lua") print[[",
columns: [
{
field: "column_key",
hidden: true,
css: {
width: '15%',
}
}, {
field: "column_command",
sortable: true,
title: "]] print(i18n("please_wait_page.command")) print[[",
css: {
width: '15%',
}
}, {
title: "]] print(i18n("chart")) print[[",
field: "column_chart",
hidden: ]] if not charts_available then print("true") else print("false") end print[[,
sortable: false,
css: {
textAlign: 'center',
width: '5%',
}
}, {
title: "]] print(i18n("system_stats.redis.tot_calls")) print[[",
field: "column_hits",
sortable: true,
css: {
textAlign: 'right'
}
}
], tableCallback: function() {
datatableInitRefreshRows($("#table-redis-stats"), "column_key", 5000, {"column_hits": NtopUtils.addCommas});
}
});
</script>
]]
elseif(page == "historical" and charts_available) then
local ts_utils = require("ts_utils")
local schema = _GET["ts_schema"] or "redis:memory"
local selected_epoch = _GET["epoch"] or ""
local tags = {ifid = getSystemInterfaceId(), command = _GET["redis_command"]}
url = url.."&page=historical"
local timeseries = {
{schema = "redis:memory", label = i18n("about.ram_memory")},
{schema = "redis:keys", label = i18n("system_stats.redis.redis_keys")},
{separator=1, label=i18n("system_stats.redis.commands")},
}
-- Populate individual commands timeseries
local series = ts_utils.listSeries("redis:hits", {ifid = getSystemInterfaceId()}, 0)
if(series) then
for _, serie in pairsByField(series, "command", asc) do
timeseries[#timeseries + 1] = {
schema = "redis:hits",
label = i18n("system_stats.redis.command_hits", {cmd = string.upper(string.sub(serie.command, 5))}),
extra_params = {redis_command = serie.command},
metrics_labels = {i18n("graphs.num_calls")},
}
end
end
graph_utils.drawGraphs(getSystemInterfaceId(), schema, tags, _GET["zoom"], url, selected_epoch, {
top_redis_hits = "top:redis:hits",
timeseries = timeseries,
})
end
-- #######################################################
dofile(dirs.installdir .. "/scripts/lua/inc/footer.lua")