Memcached Monitoring Tools

Memcached Monitoring

Memcached Monitoring Tools is a system of distributed memory object cache that is intended to speed up dynamic web applications. It provides an ideal platform to speed up the performance of web applications in the cloud. ManageEngine Applications Manager provides comprehensive solutions to proactively monitor the health and performance of Memcached servers that are important for business. 

This allows IT administrators to identify and solve problems with the caching system before they can have a negative impact on the business. Memcached is one of the most popular key value databases out there. The main use case is to function as a "cache" intermediary between the front end (application and API) and backend (external database).

Unlike other key value databases such as Redis, Memcached is completely volatile, eg All data goes directly to memory. As a direct consequence of this, the entire database is emptied when restarting the Memcached service. With that in mind, here is our own checklist of best practices (#howto), including the Memcached key metric and the warning we monitored with Server Density with Memcached Monitoring Tools.

How to Monitor Memcached Metrics and Alerts

So far, Memcached classifies it as one of the simpler databases. Even so, there is no shortage of metrics that can be monitored. The prerequisite for successful monitoring is to choose metrics that very few care about enough to let them interfere with warnings and notifications. Our rule of thumb in Server Density is, collect all the metrics that help solve the problem, notify only those who need action in Memcached Monitoring Tools.

Just like with other databases, it is necessary to monitor several general conditions:
  1. All required processes go as expected
  2. The use of resources is still within limits
  3. The query is executed successfully
  4. Typical failure points

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System Metrics

The metrics listed below are "ordinary suspects" behind most problems and bottlenecks. They also relate to the top system resources that must be monitored on almost all database servers. Hard disks are the most common obstacle in database servers. That doesn't happen to Memcached, of course, because everything is stored in RAM. However, we must still control memory usage. If RAM runs out, the server uses disk caching, an operation that takes a lot of serious performance Memcached Monitoring Tools on all servers.

Monitor the availability and connections of Memcached

This metric will notify if Memcached functions and accepts commands as expected. Memcached is a simple service with only a few points of failure. Make sure you have enough RAM allocated (limit_maxbytes). Also pay attention to network traffic and errors. This metric tracks whether the database does what it intended to do: keys and cache values ​​(no surprises there). Here are some key performance metrics that must be considered in Memcached Monitoring Tools.

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