Denis,
The topic is about a possible minimum only.
Our default for WAL segment size is 64mb and we are not going to change
it (at least under this ticket).
Best Regards,
Ivan Rakov
On 02.04.2018 19:51, Denis Magda wrote:
Ivan,
Will his value be used as a default one as well or only is a possible
minimum? As for the defaults, I see that Postgres and Cassandra set 16mb as
a default segment size:
https://www.postgresql.org/docs/9.1/static/wal-configuration.html
https://www.enterprisedb.com/docs/en/10.0/EPAS_Guide_v10/EDB_Postgres_Advanced_Server_Guide.1.45.html
Should we have the same defaults?
--
Denis
On Mon, Apr 2, 2018 at 9:16 AM, Ivan Rakov <ivan.glu...@gmail.com> wrote:
Igniters,
We've bumped into situation when using extremely small (<10 pages) WAL
segment size caused unobvious errors and assertions:
https://issues.apache.org/jira/browse/IGNITE-8111
Let's reach a consensus on which value of WAL segment size should be
considered as minimum. I tried tests with 128kb WAL segment and they didn't
fail.
Keeping a little reserve, I propose 512kb as minimum allowable WAL segment
size. I don't know why anyone may need a lesser value.
Please share your thoughts and let know if you have objections on 512kb.
--
Best Regards,
Ivan Rakov
