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
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