2011/6/16 Massimo Lusetti <mluse...@gmail.com>
> On Tue, Jun 14, 2011 at 12:56 PM, Johan Svensson
> <jo...@neotechnology.com> wrote:
>
> > Hi,
> >
> > Looks like there was an OOME during commit but commit partially
> > succeeded (removing the xid branch id association for the xa resource)
> > causing the subsequent rollback call to fail. To guarantee consistency
> > the kernel will block all mutating operations after this and a restart
> > + recovery has to be performed.
> >
> > To avoid this make sure you don't get OOME thrown. What cache
> > configuration was this on? If running on strong reference cache
> > (default is soft) that may be the cause. Another possible cause is
> > that the transaction is to large so either increase heap or split
> > large transactions into smaller ones.
>
> This is the configurations I touch during EmbeddedGraphDatabase creation
> time:
>
> Map<String, String> config = new HashMap<String, String>();
> config.put("string_block_size", "60");
> config.put("dump_configuration", "true");
> config.put("neostore.propertystore.db.index.keys.mapped_memory", "5M");
> config.put("neostore.propertystore.db.index.mapped_memory", "5M");
> config.put("neostore.propertystore.db.mapped_memory", "350M");
> config.put("neostore.propertystore.db.strings.mapped_memory", "100M");
> config.put("neostore.relationshipstore.db.mapped_memory", "350M");
>
> I got 2G of heap space but I may increase a little and the transaction
> consists at max of 10000 "insert" operations.
>
> One characteristic of my db is to have a single node indexed with
> millions of values, let's say I have one node has the target of one
> index which contains one indexed property with 250millions of
> values... may this cause problems?
>
Hi, could you clarify a bit what you mean? Do you have one node which is
indexed in one index with millions of key/value pairs? What about
relationships, you said that you had many relationships to a single node.
How many relationships can one node have in your model?
>
> Cheers
> --
> Massimo
> http://meridio.blogspot.com
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--
Mattias Persson, [matt...@neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com
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