We are running ecommerce website, every 10 days - we get strange error. Solution is just reboot the node.
Message: fopen(/tmp/ci_sessionvrjkh2l1t1l2kdh9mhdesd0h14orpa5a): failed to open stream: No space left on device
Line Number: 176
Message: session_start(): Failed to read session data: user (path: /tmp)
Line Number: 143