stream_state monitor state of STREAM.
| Monitor Item | Description |
|---|---|
| STREAM_BYTES_RECV | Counter for receiving stream bytes |
| STREAM_BYTES_SENT | Counter for sending stream bytes |
| STREAM_ERR_BALANCE | Counter for balance error |
| STREAM_ERR_CONNECT | Counter for connecting backend error |
| STREAM_ERR_PROXY | Counter for finding backend error |
| STREAM_ERR_TRANSFER | Counter for transfer error |
| STREAM_PANIC_CONN | Counter for connection panic |