Re: Hot Standby query cancellation and Streaming Replication integration

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От Bruce Momjian
Тема Re: Hot Standby query cancellation and Streaming Replication integration
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Msg-id 201002262122.o1QLMFZ19141@momjian.us
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bruce wrote:
>     4     The standby waiting longer than max_standby_delay to acquire a
...
> #4 can be controlled by max_standby_delay, where a large value only
> delays playback during crash recovery --- again, a rare occurance.

One interesting feature is that max_standby_delay will _only_ delay if
it it encounters a conflict when applying WAL, meaning only if there are
long-running transactions.

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.comPG East:  http://www.enterprisedb.com/community/nav-pg-east-2010.do + If your life is a hard
drive,Christ can be your backup. +
 


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