Help Center/ Data Warehouse Service/ Standard Data Warehouse (9.1.0.x)/ GaussDB(DWS) System Catalogs and Views/ System Views/ PG_COMM_SEND_STREAM
Updated on 2025-06-12 GMT+08:00
View PDF

PG_COMM_SEND_STREAM

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

Column

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.
Parent Topic: System Views