ClearStone for Memcached « Evident Software – Real-Time Intelligence for Managing High Performance IT

ClearStone for Memcached

Bringing the Power of ClearStone to Memcached

Evident ClearStone for Memcached is a ClearStone Management Pack for monitoring, analyzing, and managing the real-time performance, capacity, and operational health of business-critical applications running on Memcached. ClearStone deploys within minutes and provides the instant insight and control you need for optimizing business-critical applications.

The ClearStone Dashboard reporting the I/O status of Memcached nodes and wasted memory statistics for the nodes’ slabs.

In real-time visualizations, ClearStone for Memcached presents a wide range of instance statistics, as well as Memcached’s Slab Allocation statistics. These dynamic visualizations enable IT engineers to quickly determine the efficiency of their Memcached instances in order to ensure that business-critical Web applications perform optimally.

The ClearStone Dashboard reporting the number of GETs in an Memcached environment.

The real-time dashboard contains the metrics listed below, with both real-time and historical visualizations, threshold-based event triggers (alerts, notifications), and management functions.

Memcached Instance Statistics	Memcached Slab Allocation Statistics
Current Connections Current Items Items Stored Reclaimed Items LRU/Forced Evictions Get/Set/Delete Hits Get/Set/Delete Misses Bytes I/O Bytes Used/Free Threads Total Items Item Age Uptime Free/Used Memory Authentication Errors	Current Items Items Stored Reclaimed Items LRU/Forced Evictions Get/Set/Delete Hits Bytes Requested Wasted Bytes Item Age Free/Used Chunks

With these statistics available to analyze with ClearStone’s rich visual components, customers can understand trends and identify bottlenecks or memory consumption immediately.

For example, customers using mySQL or any database as Memcached’s backing store can set thresholds on the amount of sets in the Memcached nodes. ClearStone alerts when the Memcached node is querying the backing store too often, breaching the threshold. The alert gives IT engineers the timely notification they need in order to adjust their Memcached environment to consistently deliver the fastest response time to end users.

Get notified when your Memcached servers are evicting items too frequently, or when get/set failures are increasing out of the range of your acceptable KPI limits. With ClearStone, you can be at ease knowing that your Memcached performance and health is being monitored 24/7.