Operating System Settings

Consider the following when configuring Kafka:

• Kafka uses page cache memory as a buffer for active writers and readers, so after you specify JVM size (using -Xmx and -Xms Java options), leave the remaining RAM available to the operating system for page caching.

• Kafka needs open file descriptors for files and network connections. You should set the file descriptor limit to at least 128000.

• You can increase the maximum socket buffer size to enable high-performance data transfer.