Java Memcached stats settings are commonly used to get the statistics about the memcached server. These statistics can include cache hits ratio, number of active connections, and current memory usage, among other data. This information is crucial for monitoring and optimizing the performance of a Memcached-based application.
Here's an example of how you can retrieve stats from a Memcached server using the SpyMemcached client in Java:
In this code,
getStats() is a call that fetches the statistics from the Memcached server. Each key-value pair in the returned map represents a statistic name and its value, respectively.
When working with Memcached stats in Java, here are some best practices to keep in mind:
IOExceptionduring Memcached client initialization and manage
OperationTimeoutExceptionwhen retrieving stats.
Q: What does the 'get_hits' stat mean? A: The 'get_hits' statistic shows the number of times a get command has been issued and found the key in cache.
Q: How can I increase my hit rate? A: Increasing the cache size or optimizing your eviction policy can help increase your hit rate. Be sure to monitor your 'evictions' stat as well to ensure data isn't being prematurely removed from the cache.