Postgres keep alive configuration

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От Fabrice Chapuis
Тема Postgres keep alive configuration
Дата
Msg-id CAA5-nLCvx449=jBrWkPWSnvxPEboJzo2iLdgf9j77o42OcD-fg@mail.gmail.com
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Ответы Re: Postgres keep alive configuration
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Hi,

I try to configure these 3 parameters to activate keep alive on a sever Postgres in version 14.

tcp_keepalives_idle = 3
tcp_keepalives_interval = 2
tcp_keepalives_count = 30

After issuing alter system set ... command and a pg_reload_conf(); these parameters keep value 0.

I also check these OS parameters
grep TCP_KEEPIDLE /usr/include/netinet/tcp.h
#define TCP_KEEPIDLE             4  /* Start keeplives after this period */

grep TCP_KEEPINTVL  /usr/include/netinet/tcp.h
#define TCP_KEEPINTVL            5  /* Interval between keepalives */

grep TCP_KEEPCNT   /usr/include/netinet/tcp.h
#define TCP_KEEPCNT              6  /* Number of keepalives before death */

and 

sysctl net.ipv4.tcp_keepalive_time
net.ipv4.tcp_keepalive_time = 7200

Thanks for helping on this point

Fabrice

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