On 05/06/17 00:04, Erik Rijkers wrote:

On 2017-05-31 16:20, Erik Rijkers wrote:
On 2017-05-31 11:16, Petr Jelinek wrote:
Thanks to Mark's offer I was able to study the issue as it happened and
found the cause of this.


This looks good:

-- out_20170531_1141.txt
    100 -- pgbench -c 90 -j 8 -T 60 -P 12 -n   --  scale 25
    100 -- All is well.

So this is 100x a 1-minute test with 100x success. (This on the most
fastidious machine (slow disks, meagre specs) that used to give 15%


No errors after (several days of) running variants of this. (2500x 1 minute runs; 12x 1-hour runs)

Same here, no errors with the v2 patch applied (approx 2 days - all 1 minute runs)



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