| From: | "Zhijie Hou (Fujitsu)" <houzj(dot)fnst(at)fujitsu(dot)com> |
|---|---|
| To: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Vitaly Davydov <v(dot)davydov(at)postgrespro(dot)ru>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alexander Lakhin <exclusion(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, "tomas(at)vondra(dot)me" <tomas(at)vondra(dot)me>, vignesh C <vignesh21(at)gmail(dot)com> |
| Subject: | RE: Slot's restart_lsn may point to removed WAL segment after hard restart unexpectedly |
| Date: | 2025-06-25 05:27:27 |
| Message-ID: | OS0PR01MB5716BB506AF934376FF3A8BB947BA@OS0PR01MB5716.jpnprd01.prod.outlook.com |
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| Lists: | pgsql-hackers |
Hi,
After commit ca307d5, I noticed another crash when testing
some other logical replication features.
The server with max_replication_slots set to 0 would crash when executing CHECKPOINT.
TRAP: failed Assert("ReplicationSlotCtl != NULL"), File: "slot.c", Line: 1162, PID: 577315
postgres: checkpointer (ExceptionalCondition+0x9e)[0xc046cb]
postgres: checkpointer (ReplicationSlotsComputeRequiredLSN+0x30)[0x99697f]
postgres: checkpointer (CheckPointReplicationSlots+0x191)[0x997dc1]
postgres: checkpointer [0x597b1b]
postgres: checkpointer (CreateCheckPoint+0x6d1)[0x59729e]
postgres: checkpointer (CheckpointerMain+0x559)[0x93ee79]
postgres: checkpointer (postmaster_child_launch+0x15f)[0x940311]
postgres: checkpointer [0x9468b0]
postgres: checkpointer (PostmasterMain+0x1258)[0x9434f8]
postgres: checkpointer (main+0x2fe)[0x7f5f9c]
/lib64/libc.so.6(__libc_start_main+0xe5)[0x7f7585f81d85]
postgres: checkpointer (_start+0x2e)[0x4958ee]
I think it is trying to access the replication slots when the shared memory
for them was not allocated.
Best Regards,
Hou zj
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