issue with host name lookup in PQconnectdb

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От dharani kumar
Тема issue with host name lookup in PQconnectdb
Дата
Msg-id CA+mRP7bpBv6Ui-H8yDVoWxbhf34EBGHo6_ff6moQyHL+ua1uVg@mail.gmail.com
обсуждение исходный текст
Ответы Re: issue with host name lookup in PQconnectdb
Список pgsql-general
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The problem i am facing is that PQconnectdb is blocking even though i specified connect_timeout=10. My observation is below.
1. To simulate this issue, i stopped the postgreSQL-x64-9.4 service and executed my application.
2. host=localhost is used, database present in the same machine.
3. I have a service created by NSSM, created out of my application exe.
4. My application doesn't blocks, the PQconnectDB fails instantaneously but when ran as a service PQconnectDB blocks. No difference in code and environment between exe and service.
5. The blocking issue in service gets eliminated when i replace host with hostaddr=127.0.0.1. I thought maybe DNS lookup was the issue.

With these observation i tried to understand the nature and root cause of the issue, could someone throw a light on this?

-Dharani

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