Re: tuplestore: write failed

Perhaps you should check disk space during query execution and not only
after...
It may me possible depending on data amount that temporary calculations
failed out of disk space...

-----Original Message-----
From: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org]On Behalf Of Fernando Papa
Sent: Wednesday, October 16, 2002 6:37 PM
To: pgsql-general@postgresql.org
Subject: [GENERAL] tuplestore: write failed



Hi All!
I'm working on postgres for the last 3 weeks. I'm trying to port several
applications from oracle to postgres. I load all the tables and now I'm
testing performance issues. Today, when I execute a very heavy query,
the query abort (no message on client) in about 20/30 minutes. In
server's logfile I found this:

2002-10-16 11:53:25 ERROR:  tuplestore: write failed

I run again the query an I get the same error.
I check the disk space... everithing ok.

I did several modifications on postgres.conf:
tcpip_socket = true
shared_buffers = 16384
wal_buffers = 16
sort_mem = 512
vacuum_mem = 16384
wal_files = 4 # range 0-64
checkpoint_segments = 3
fsync=false
enable_seqscan = true
enable_indexscan = true
enable_tidscan = true
enable_sort = true
enable_nestloop = true
enable_mergejoin = true
enable_hashjoin = true
geqo = true
geqo_selection_bias = 2.0
geqo_threshold = 11
geqo_pool_size = 0
geqo_effort = 1
geqo_generations = 0
geqo_random_seed = -1
stats_start_collector = true
stats_reset_on_server_start = true
stats_command_string = true


I create several indexes after data load, and then run vacuum -z.

But I can't find any references for this error!

If anybody can guide me...

thanks in advance

--
Fernando

---------------------------(end of broadcast)---------------------------
TIP 4: Don't 'kill -9' the postmaster