Optimize streaming replication because of network latency - Mailing list pgsql-admin

From Mai Peng
Subject Optimize streaming replication because of network latency
Date
Msg-id 99AA0D0E-E266-48AF-AB29-4E2B73CBE3EA@webedia-group.com
Whole thread Raw
Responses Re: Optimize streaming replication because of network latency  (Ron <ronljohnsonjr@gmail.com>)
List pgsql-admin
Hello,

We’ve added a streaming standby on a gcp container. There’s a lot of network latency between our primary in EU and this standby in South America.
I did a big update on a table ( 4 millions rows) and it generates a lot of lag : more than 5 hours. 
The standby has great hardware ressources: cpu, ssd disk and had no load during this update.
How could we handle this lag and have less impact, less lag ?
Basic PG Config:
   shared_buffers = 8GB
   work_mem = 128MB
   max_connections = 600
   wal_keep_segments = 1000
   wal_sender_timeout = 0
   replication_timeout=(not set)
   wal_receiver_status_interval=10s
   max_wal_senders=20
  Checkpoint_timeout = 10min
 Max_wal_size= 2GB
 min_wal_size= 1GB


Thank you
Mai

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