Thanks,I will try 在 2015年5月26日星期二 UTC+8上午2:21:13，Michael Hunger写道： > > > Am 25.05.2015 um 03:45 schrieb Xin Su <[email protected] <javascript:> > >: > > Thanks for your reply. > I user verson 2.0.1 of Neo4j. > > Upgrade to 2.2.2 > > 1000 nodes in a single transaction. > > That's fine up, to 50k nodes per tx should work well > > I don't hava the size of the heap. > > Why not? Set it to 4-6G > > My system has 12G memory and 300g hard drive > > SSD or spinning disk? > > Perhaps you can share your full code? Are you sure you're not having an > outer transaction around the one that is committed after 1000 nodes? > > Michael > > > 在 2015年5月21日星期四 UTC+8下午10:08:07，Michael Hunger写道： >> >> Which version of Neo4j are you using? >> How many nodes do you insert in a single transaction? >> >> Please update to 2.2.2 >> >> How much heap do you use? What disk do you have in your system and how >> much memory? >> >> Am 21.05.2015 um 11:35 schrieb Xin Su <[email protected]>: >> >> Hellow everyone ： >> It takes too much of virtual memory when I insert data.I have >> already referred( >> http://neo4j.com/docs/stable/linux-performance-guide.html#_setting_the_number_of_open_files >> ) and (http://neo4j.com/docs/stable/configuration-caches.html). >> public Node getOrCreateNode(GraphDatabaseService _graphDb,Object _obj, >> Map<String, Object> _propsMap) { >> long start=System.currentTimeMillis(); >> >> Validate.notNull(_obj); >> Validate.notNull(_graphDb); >> >> UniqueNodeFactory uniqueNodeFactory=new UniqueNodeFactory(_graphDb, >> CUSTOM_KEY_INDEX) { >> @Override >> protected void initialize(Node created, Map<String, Object> >> properties) { >> created.setProperty(CUSTOM_KEY, properties.get(CUSTOM_KEY)); >> } >> }; >> >> Node node= uniqueNodeFactory.getOrCreate(CUSTOM_KEY,_obj); >> >> >> if (MapUtils.isNotEmpty(_propsMap)) { >> for (String p : _propsMap.keySet()) { >> if (!p.equals(CUSTOM_KEY)) { >> Object objValue=_propsMap.get(p); >> if (objValue instanceof List) { >> Object objs=Neo4jTypeConverter.convertToNeo4jPropArray((List) >> objValue); >> node.setProperty(p, objs); >> }else { >> node.setProperty(p, objValue); >> } >> } >> } >> } >> >> if (LOG.isDebugEnabled()) { >> >> long end=System.currentTimeMillis(); >> LOG.debug(GDBConstant.PROJECT+" "+node.getId()+",耗时："+(end-start)+ >> "ms"); >> } >> return node; >> } >> >> neostore.nodestore.db.mapped_memory=250M >> neostore.relationshipstore.db.mapped_memory=100M >> neostore.propertystore.db.mapped_memory=100M >> neostore.propertystore.db.strings.mapped_memory=100M >> neostore.propertystore.db.arrays.mapped_memory=100M >> >> vm.dirty_background_ratio = 50 >> vm.dirty_ratio = 80 >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Neo4j" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > For more options, visit https://groups.google.com/d/optout. > > >
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