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From Walter Underwood <>
Subject Re: Solr long q values
Date Fri, 03 May 2019 20:18:21 GMT
512M was the default heap for Java 1.1. We never changed the default. So no size was “chosen”.

Walter Underwood  (my blog)

> On May 3, 2019, at 10:11 PM, Shawn Heisey <> wrote:
> On 5/3/2019 1:37 PM, Erick Erickson wrote:
>> We already do warnings for ulimits, so memory seems reasonable. Along the same vein,
does starting with 512M make sense either?
>> Feel free to, raise a JIRA, but I won’t have any time to work on it….
> Done.
> I think that for typical server systems, starting with a 512MB heap is a little bit nuts.
> I think I know why such a low number was chosen.  Without a much smarter startup, a super
low default is the only way to ensure that Solr will start on virtually any system that somebody
tries it on, like the small AWS servers.
> Thanks,
> Shawn

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