| From: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com> |
|---|---|
| To: | alvherre(at)2ndquadrant(dot)com |
| Cc: | jgdr(at)dalibo(dot)com, andres(at)anarazel(dot)de, michael(at)paquier(dot)xyz, sawada(dot)mshk(at)gmail(dot)com, peter(dot)eisentraut(at)2ndquadrant(dot)com, pgsql-hackers(at)lists(dot)postgresql(dot)org, thomas(dot)munro(at)enterprisedb(dot)com, sk(at)zsrv(dot)org, michael(dot)paquier(at)gmail(dot)com |
| Subject: | Re: [HACKERS] Restricting maximum keep segments by repslots |
| Date: | 2020-04-08 08:02:22 |
| Message-ID: | 20200408.170222.994602368402118750.horikyota.ntt@gmail.com |
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| Lists: | pgsql-hackers |
At Wed, 08 Apr 2020 16:46:05 +0900 (JST), Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com> wrote in
> At Wed, 08 Apr 2020 14:19:56 +0900 (JST), Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com> wrote in
> The latch triggered by checkpoint request by CHECKPOINT command has
> been absorbed by ConditionVariableSleep() in
> InvalidateObsoleteReplicationSlots. The attached allows checkpointer
> use MyLatch for other than checkpoint request while a checkpoint is
> running.
Checkpoint requests happens during waiting for the CV causes spurious
wake up but that doesn't harm.
regards.
--
Kyotaro Horiguchi
NTT Open Source Software Center
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