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Allow BASE_BACKUP to be throttled

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A new MAX_RATE option allows imposing a limit to the network transfer
rate from the server side.  This is useful to limit the stress that
taking a base backup has on the server.

pg_basebackup is now able to specify a value to the server, too.

Author: Antonin Houska

Patch reviewed by Stefan Radomski, Andres Freund, Zoltán Böszörményi,
Fujii Masao, and Álvaro Herrera.
This commit is contained in:
Alvaro Herrera
2014-02-27 18:55:57 -03:00
parent 1161d895d8
commit ef5856fd9b
7 changed files with 306 additions and 20 deletions
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src/backend/replication/repl_scanner.l
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@@ -86,6 +86,7 @@ IDENTIFY_SYSTEM { return K_IDENTIFY_SYSTEM; }
LABEL { return K_LABEL; }
NOWAIT { return K_NOWAIT; }
PROGRESS { return K_PROGRESS; }
MAX_RATE { return K_MAX_RATE; }
WAL { return K_WAL; }
TIMELINE { return K_TIMELINE; }
START_REPLICATION { return K_START_REPLICATION; }