Re: [HACKERS] Block level parallel vacuum

On 11/27/19 11:13 PM, Masahiko Sawada wrote:
> Thank you for reviewing this patch. All changes you made looks good to me.
>
> I thought I already have posted all v34 patches but didn't, sorry. So
> I've attached v35 patch set that incorporated your changes and it
> includes Dilip's patch for gist index (0001). These patches can be
> applied on top of the current HEAD and make check should pass.
> Regards,
While doing testing of this feature against v35- patches ( minus 004) on 
Master ,
getting crash when user connect to server using single mode and try to 
perform vacuum (parallel 1 ) o/p

tushar@localhost bin]$ ./postgres --single -D data/  postgres
2019-12-03 12:49:26.967 +0530 [70300] LOG:  database system was 
interrupted; last known up at 2019-12-03 12:48:51 +0530
2019-12-03 12:49:26.987 +0530 [70300] LOG:  database system was not 
properly shut down; automatic recovery in progress
2019-12-03 12:49:26.990 +0530 [70300] LOG:  invalid record length at 
0/29F1638: wanted 24, got 0
2019-12-03 12:49:26.990 +0530 [70300] LOG:  redo is not required

PostgreSQL stand-alone backend 13devel
backend>
backend> vacuum full;
backend> vacuum (parallel 1);
TRAP: FailedAssertion("IsUnderPostmaster", File: "dsm.c", Line: 444)
./postgres(ExceptionalCondition+0x53)[0x8c6fa3]
./postgres[0x785ced]
./postgres(GetSessionDsmHandle+0xca)[0x49304a]
./postgres(InitializeParallelDSM+0x74)[0x519d64]
./postgres(heap_vacuum_rel+0x18d3)[0x4e47e3]
./postgres[0x631d9a]
./postgres(vacuum+0x444)[0x632f14]
./postgres(ExecVacuum+0x2bb)[0x63369b]
./postgres(standard_ProcessUtility+0x4cf)[0x7b312f]
./postgres[0x7b02c6]
./postgres[0x7b0dd3]
./postgres(PortalRun+0x162)[0x7b1b02]
./postgres[0x7ad874]
./postgres(PostgresMain+0x1002)[0x7aebf2]
./postgres(main+0x1ce)[0x48188e]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7f4fe6908505]
./postgres[0x481b6a]
Aborted (core dumped)

-- 
regards,tushar
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