Re: could not read block 77 of relation 1663/16385/388818775

Gregory Stark wrote:
> Darren Reed <darrenr+postgres(at)fastmail(dot)net> writes:
>
>
>> ERROR: could not read block 1 of relation 1664/0/1233: read only 0 of
>> 8192 bytes
>>
>
> FWIW this is pg_shdepend_reference_index which is actually a bit special. It's
> a "shared" relation which means it spans all your databases. Your reindex
> didn't rebuild to. To reindex it you would have to shut down postgres and run
> REINDEX in postgres in "standalone" mode.
>
>
>> I suppose the logical thing for me to do is go back to 8.2.6.
>>
>
> I think it would be more interesting to know how you got into this situation.
> When you ran initdb did anything unusual happen? Is it possible anything later
> truncated these files?
>

Nope.
For me it has been very reproducible:
- init the database
- restore tables from dump files
- create indexes for those tables
- insert some records using perl DBI
- receive above error message

My current logifile goes like this:
- database startup
- create tables creating implicit keys
- lots of checkpoints happening too quick (restores)
- 3 insert errors due to syntax
- 2 EOFs from clients
- ERROR could not read block 1 of relation...

I haven't even run any queries.

The single-user mode REINDEX did fix it, thanks.

Darren