I'm running a streaming replication setup with PostgreSQL 9.5.2 and have
started seeing these errors on a few INSERTs:
ERROR: could not read block 8 in file "base/3884037/3885279": read only 0 of 8192 bytes
on a few tables. If I look at that specific file, it's only 6 blocks
long:
# ls -la base/3884037/3885279
-rw------- 1 postgres postgres 49152 May 30 12:56 base/3884037/3885279
It seems that this is the case on most tables in this state. I havn't
seen any error on SELECT and I can SELECT * on the all tables I know
have this problem. The database is machine is under reasonable load.
On some tables an "ANALYZE tablename" causes the error.
We recently had a streaming replication failover after loading a large
amount of data with pg_restore. The problems seem to have started after
that, but I'm not perfectly sure.
I have data_checksums switched on so am suspecting a streaming
replication bug. Anyone know of a recent bug which could have caused
this?
--
Brian Sutherland
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