From: | Jaime Casanova <jaime(dot)casanova(at)2ndquadrant(dot)com> |
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To: | Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Patch: Write Amplification Reduction Method (WARM) |
Date: | 2017-04-14 15:51:40 |
Message-ID: | CAJGNTePTBOn-w4KjVC3K043AbvoavdPLFkCuc3yp9hTEcFY8mQ@mail.gmail.com |
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On 5 April 2017 at 13:32, Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com> wrote:
>
> Ok. I've extensively updated the README to match the current state of
> affairs. Updated patch set attached.
Hi Pavan,
I run a test on current warm patchset, i used pgbench with a scale of
20 and a fillfactor of 90 and then start the pgbench run with 6
clients in parallel i also run sqlsmith on it.
And i got a core dump after sometime of those things running.
The assertion that fails is:
"""
LOG: statement: UPDATE pgbench_tellers SET tbalance = tbalance + 3519
WHERE tid = 34;
TRAP: FailedAssertion("!(((bool) (((const void*)(&tup->t_ctid) !=
((void *)0)) && (((&tup->t_ctid)->ip_posid & ((((uint16) 1) << 13) -
1)) != 0))))", File: "../../../../src/include/access/htup_details.h",
Line: 659)
"""
--
Jaime Casanova www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
Attachment | Content-Type | Size |
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warm_bt_20170413.txt | text/plain | 2.8 KB |
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