Network Monitoring

TcpChannel

The TcpChannel represents tcp connection.

• Counter - Number of bytes sent
• Counter - Number of bytes received

Transport.Connection

The Transport.Connection represents a collection of channels to another node.

• Counter - Number of requests sent
• Counter - Number of request timeouts

ConnectionManager

The ConnectionManager represents a manager for outgoing cluster connections. We have one for the local cluster and one for each remote cluster.

• Gauge - Number of open Transport.Connection
• Gauge - Number of open outbound TcpChannel
• Counter - Number of failed requests due to flush failure
• Counter - Number of request timeouts
• Counter - Number of requests sent
• Counter - Transport.Connections closed
• Counter - TcpChannels closed

TcpTransport

The TcpTransport holds the state of all the incoming tcp connections.

• Gauge - Number of open inbound TcpChannel
• Counter - Number of requests received
• Counter - Number of responses sent
• Counter - Number of failed responses due to flush failure
• Counter - Number of inbound TcpChannels closed
• Counter - Keepalives sent
• Counter - Keepalives received
• Gauge - Recycled bytes consumed from PageCacheRecycler
• Gauge - Un-recycled bytes consumed from PageCacheRecycler
• Gauge - Byte size of netty’s heap buffer pool
• Gauge - Byte size of netty’s direct buffer pool