PG_COMM_SEND_STREAM

UNKNOWN: The logical connection is unknown.
READY: The logical connection is ready.
RUN: The logical connection sends packets normally.
HOLD: The logical connection is waiting to send packets.
CLOSED: The logical connection is closed.
TO_CLOSED: The logical connection is to be closed.
WRITING: Data is being written.

PG_COMM_SEND_STREAM displays the sending stream status of all the communication libraries for a single DN.

**Table 1** PG_COMM_SEND_STREAM columns
Name	Type	Description
node_name	text	Node name
local_tid	bigint	ID of the thread using this stream
remote_name	text	Name of the peer node
remote_tid	bigint	Peer thread ID
idx	integer	Peer DN ID in the local DN
sid	integer	Stream ID in the physical connection
tcp_sock	integer	TCP socket used in the stream
state	text	Current status of the stream UNKNOWN: The logical connection is unknown. READY: The logical connection is ready. RUN: The logical connection sends packets normally. HOLD: The logical connection is waiting to send packets. CLOSED: The logical connection is closed. TO_CLOSED: The logical connection is to be closed. WRITING: Data is being written.
query_id	bigint	debug_query_id corresponding to the stream
pn_id	integer	plan_node_id of the query executed by the stream
send_smp	integer	smpid of the sender of the query executed by the stream
recv_smp	integer	smpid of the receiver of the query executed by the stream
send_bytes	bigint	Total data volume sent by the stream. The unit is Byte.
time	bigint	Current life cycle service duration of the stream. The unit is ms.
speed	bigint	Average sending rate of the stream. The unit is Byte/s.
quota	bigint	Current communication quota value of the stream. The unit is Byte.
wait_quota	bigint	Extra time generated when the stream waits the quota value. The unit is ms.