Back in December, we upgraded to a bigger server with 8 cores. We are using the 64 bit versions of all linux type software. We've adjusted our settings and everything looks fine. We have low loads with high traffic and the site runs fast. However, every few days, the entire site will get 503 errors and automatically fix itself. There is a period of about 4 - 5 minutes where the site is down while it restarts the lsphp processes. We have created an external app for our lsphp processes. What could be causing this? Here is our configuration for the external app: Max Connections: 80 Environment: PHP_LSAPI_MAX_REQUESTS=700 PHP_LSAPI_CHILDREN=80 Initial Request Timeout (secs): 60 Retry Timeout (secs): 0 Persistent Connection: Yes Connection Keepalive Timeout: 20 Response Buffering: No Auto Start: Yes Command: $SERVER_ROOT/fcgi-bin/lsphp Back Log: 100 Instances: 1 Run On Start Up: Yes Max Idle Time: Not Set Priority: 0 Memory Soft Limit (bytes): 300M Memory Hard Limit (bytes): 350M Process Soft Limit: 2600 Process Hard Limit: 2600 Here is our server config: Max Connections: 200 Max SSL Connections: 200 Connection Timeout (secs): 60 Max Keep-Alive Requests: 200 Smart Keep-Alive: Yes Keep-Alive Timeout (secs): 20 Send Buffer Size (bytes): 65535 Receive Buffer Size (bytes): 65535 I/O Event Dispatcher: best (All platforms) Max Cached Small File Size (bytes):4096 Total Small File Cache Size (bytes): 20M Max MMAP File Size (bytes): 256K Total MMAP Cache Size (bytes): 40M Use sendfile(): Yes No I-Node in ETag: Not Set SSL Hardware Accelerator: (built-in) OpenSSL internal engine Any ideas??