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PG_COMM_RECV_STREAM

Updated at: Jul 15, 2020 GMT+08:00

PG_COMM_RECV_STREAM displays the receiving stream status of all the communication libraries for a single DN.

Table 1 PG_COMM_RECV_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

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

recv_bytes

bigint

Total data volume received from the stream. The unit is Byte.

time

bigint

Current life cycle service duration of the stream. The unit is ms.

speed

bigint

Average receiving rate of the stream. The unit is Byte/s.

quota

bigint

Current communication quota value of the stream. The unit is Byte.

buff_usize

bigint

Current size of the data cache of the stream. The unit is Byte.

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