Monit Summary - Services Listed

Products

• CA App Synthetic Monitor

Issue/Introduction

If we run monit summary, it lists multiple services. May we know which service is responsible for what ? 

Service Name                    │ Status                     │ Type          │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ abca2398                        │ OK                         │ System        │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ Xvfb                            │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ webdriver-agent                 │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ tunnel-client                   │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ api                             │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ httpbroker                      │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ assetsmanager                   │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ resultbroker                    │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ fpm                             │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ redis-server                    │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm1-Xvfb                      │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm2-Xvfb                      │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm3-Xvfb                      │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm4-Xvfb                      │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm5-Xvfb                      │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm6-Xvfb                      │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ php-fpm                         │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ nginx                           │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ fcgiwrap                        │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ exim4                           │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ docker                          │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ bm_proxy                        │ OK                         │ Process       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ devshmfs_warning                │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ devshmfs_critical               │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ homefs_warning                  │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ homefs_critical                 │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ optfs_warning                   │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ optfs_critical                  │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rootfs_warning                  │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rootfs_critical                 │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ tmpfs_warning                   │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ tmpfs_critical                  │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ varfs_warning                   │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ varfs_critical                  │ OK                         │ Filesystem    │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ selenoid-docker                 │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm1                           │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm2                           │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm3                           │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm4                           │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm5                           │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ rbtm6                           │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ jmeter4-agent                   │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ jmeter2-agent                   │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ fpm-agent                       │ OK                         │ Program       │
├─────────────────────────────────┼────────────────────────────┼───────────────┤
│ bm_proxy_open_fd                │ OK                         │ Program       

Environment

Release : SAAS

Component : APP SYNTHETIC MONITOR ENVIRONMENTAL

Resolution

The services are the following:

 

abca2398	Memory consumption service	this service is named by the hostname (i.e. the name is different on each OPMS) and checks the memory consumption is below 90%
Xvfb	Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol.	It is used by the old Firefox agent. Firefox cannot run without display. This checks if the linux Xvfb daemon is running.
webdriver-agent	Running web driver checks	This is the java agent that is responsible for webdriver monitor checks. It prepares and runs the checks using selenoid (see selenoid-docker service below). One instance is running only (using threads for concurrency)
tunnel-client	Tunneling Client	Interface between OPMS and ASM backend. It is creating a connection between tunnel server and the OPMS. The monitor checks are sent by the scheduler (running on ASM core servers) through this secure channel as a proxy to the API (see below)
api	Api process	Accepts check requests through the Tunnel Client, forwards them, maintains status.
httpbroker	HTTP Router.	API goes through http broker and connects to PHP/CGI checkers. The HTTP Broker is used to communicate with historic Check Agents that communicate over HTTP themselves, instead of listen on a queue in Redis. The function of the HTTP Broker is to listen on the Redis queue for the chosen agent, call the agent synchronously over HTTP, and push back the result into the Result Queue in Redis for the API to process. The HTTP Broker uses a set of empirically determined timeouts that should work well with the timeouts configured in the Check Agents, the SmartAPI and the Scheduler; be careful when changing these.
assetsmanager	Check Results manager.	The final component of the SmartPoP is the Assets Manager, which is responsible of storing Check Results and assets, and managing their lifetime. It is also used for old agent only that cannot communicate with redis directly. New agents (like webdriver) manage the asset storage themselves. Next to a set of performance metrics, each check can output check detail objects. The Check agents can post assets to the Asset Manager via Redis. The Assets Manager will collect and persist them on disk. It will also keep track of expiry times (again via Redis), and purge the items that have expired.
resultbroker	Check Results sender.	The Result Broker is a component in the SmartPoP that is responsible for sending asynchronous check results back to the client callbacks. This is only needed when the client provided a ?callback URL when requesting a check, something that the Scheduler currently does not do. The Result broker support sending HTTP callbacks, but could be extended to support multiple callback protocols.
fpm	Full Page Monitor Checker	The old full page monitor agent written in python and based on webkit. In 10.7, it will be replaced with the new fpm agent (see below)
redis-server	Redis is an open source (BSD licensed), in-memory data structure store, used as database, cache and message broker. The redis-server command is a command line to launch a Redis server.	Redis is used for storing the check status and result and also as a queue for incoming checks.
rbtm1-Xvfb	Real Browser Monitoring checking. Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol.	This is the "virtual screen" for the old Firefox check agent (rbtm). Based on number of monitors installer prepares several instances of firefox agents (rbtmX) and its corresponding virtual screens (rbtmX-Xvfb).
rbtm2-Xvfb	Real Browser Monitoring checking. Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol.	another instance
rbtm3-Xvfb	Real Browser Monitoring checking. Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol.	another instance
rbtm4-Xvfb	Real Browser Monitoring checking. Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol.	another instance
rbtm5-Xvfb	Real Browser Monitoring checking. Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol.	another instance
rbtm6-Xvfb	Real Browser Monitoring checking. Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol.	another instance
php-fpm	PHP FastCGI Process Manager	Some agents are written in PHP. PHP-FPM maintains pools (workers that can respond to PHP requests).
nginx	Nginx, stylized as NGINX, nginx or NginX, is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.  Ngnix master process	With ASM, serves as a HTTP server, forwards requests to API and to CGI, PHP checkers
fcgiwrap	Fast CGI Wrapper used to communicate with a web server	It is a simple server for running CGI applications over FastCGI. It provides CGI support to nginx.
exim4	Exim is a message transfer agent (MTA) for use on Unix systems connected to the Internet.	It is used only if customer selects the OPMS status to be sent via email. It sends these messages.
docker	Docker is a set of platform as a service products that use OS-level virtualization to deliver software in packages called containers.	Used to run the Docker process associated with OPMS
bm_proxy	BrowserMob Proxy allows you to manipulate HTTP requests and responses and much more.	This is an http proxy. RBTM (old firefox)and the old FPM checkers use it as a proxy for collecting metrics. New webdriver and FPM agents do not use it any more.
devshmfs_warning	File Space warning for /dev/shm (tmpfs). Warning when x% free space	monitoring if the filesystem capacity is sufficient
devshmfs_critical	File Space warning for /home Warning when x% free space	monitoring if the filesystem capacity is sufficient
homefs_warning	File Space warning for /home Warning when x% free space	monitoring if the filesystem capacity is sufficient
homefs_critical	File Space warning for /home Warning when x% free space	monitoring if the filesystem capacity is sufficient
optfs_warning	File Space warning for /opt Warning when x% free space	monitoring if the filesystem capacity is sufficient
optfs_critical	File Space warning for /opt Warning when x% free space	monitoring if the filesystem capacity is sufficient
rootfs_warning	File Space warning for /root  or / Warning when x% free space	monitoring if the filesystem capacity is sufficient
rootfs_critical	File Space warning for /root or / Warning when x% free space	monitoring if the filesystem capacity is sufficient
tmpfs_warning	File Space warning for /tmp Warning when x% free space	monitoring if the filesystem capacity is sufficient
tmpfs_critical	File Space warning for /tmp Warning when x% free space	monitoring if the filesystem capacity is sufficient
varfs_warning	File Space warning for /var Warning when x% free space	monitoring if the filesystem capacity is sufficient
varfs_critical	File Space warning for /var Warning when x% free space	monitoring if the filesystem capacity is sufficient
selenoid-docker	Starts selenium docker process	This service is used as a selenium grid for webdriver checks. It provides functionality to run checks in firefox or chrome and record video. Webdriver agent is communicating with this service.
rbtm1	Real Browser Monitoring checking	Old Firefox monitor (real browser). It is obsolete and if customer is not scheduling / using this monitor type, it can be stopped to save CPU and memory. The more instances (rbtmX) are running the more firefox checks can be performed in parallel. Each rbtmN is using corresponding rbtmN-Xvfb as a virtual screen. If rbtmN are stopped the corresponding rbtmN-Xvfb can be stopped too.
rbtm2	Real Browser Monitoring checking	another instance
rbtm3	Real Browser Monitoring checking	another instance
rbtm4	Real Browser Monitoring checking	another instance
rbtm5	Real Browser Monitoring checking	another instance
rbtm6	Real Browser Monitoring checking	another instance
jmeter4-agent	Jmeter 4 Agent process	Jmeter agent that handles the Jmeter checks (script with version 3 and above).
Jmeter2-agent	Jmeter 2 Agent process	Jmeter agent that handles the Jmeter checks (script with version 2)
fpm-agent	Full Page Monitor Agent Process	This is the new full page monitor agent written in Java that will replace old FPM agent (see above). One instance is running only (using threads for concurrency)
bm_proxy_open_fd	monitoring of browser mob proxy	RBM, FPM checkers use it for collecting metrics. This monitors if the file descriptor is present.