[Neo] Java outof 64 GB ram

Miguel Ángel Águila Lorente maguila at ac.upc.edu
Fri Feb 26 10:05:30 CET 2010


I don't know if I'm answering your question but every node has 4 pairs
of String, therefore 4 pairs of char(15).

Mike



El jue, 25-02-2010 a las 07:18 -0700,
rick.bullotta at burningskysoftware.com escribió:
> Yes, exactly the question.  If it's a big string, it is quite possible
>    to have the file grow this large.
> 
> 
> 
>    Miguel, approximately how long is the property value?
> 
> 
> 
>    -------- Original Message --------
>    Subject: Re: [Neo] Java outof 64 GB ram
>    From: Johan Svensson <johan at neotechnology.com>
>    Date: Thu, February 25, 2010 7:13 am
>    To: Neo user discussions <user at lists.neo4j.org>
>    If you store 322M strings (one string property/relationship), were
>    each string is 200 bytes, the string store will be 60GB+ in size.
>    How large are the strings you are storing?
>    -Johan
>    On Thu, Feb 25, 2010 at 2:55 PM, <rick.bullotta at burningskysoftware.com>
>    wrote:
>    >   The string propertystore file seems really, really large to me,
>    based
>    >   on the # of nodes/relationships/properties.  The reason I ask is
>    that I
>    >   saw similar behavior in some of our early testing.  Extremely large
>    >   string propertystores file.  It would be helpful to understand why
>    the
>    >   file gets that large, and whether it is related to some of the
>    memory
>    >   stress issues.
>    >
>    >
>    >
>    >
>    >
>    >   -------- Original Message --------
>    >   Subject: Re: [Neo] Java outof 64 GB ram
>    >   From: Miguel ngel_guila Lorente <maguila at ac.upc.edu>
>    >   Date: Thu, February 25, 2010 1:57 am
>    >   To: Neo user discussions <user at lists.neo4j.org>
>    >   There are 322 million relationships, no 57 million relationships.
>    The
>    >   only propierty I save in the relationship is a String. In this 322
>    >   million relationships there are 3 diferents types of relations.
>    >   Do you think that 13 GB is a strange number? Why?
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> References
> 
>    1. https://lists.neo4j.org/mailman/listinfo/user
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