Could you re-use previous labels? How big is your graph? Which exact Neo4j version do you use? 3.0.6 ?
If you don't care about the time you could also use a property instead of a label or use label combinations. I'll see if there is any other way around it. Michael On Fri, Oct 7, 2016 at 1:45 AM, Mohammad Hossain Namaki <mhn.na...@gmail.com > wrote: > Hi, Thanks for the reply. > I use labels for different graph pattern matching algorithm e.g. Subgraph > isomorphism, bi-simulation, ...... > I use getLabels().iterator().next().name() but I don't use > dataGraph.getAllLabels() or dataGraph.getAllLabelsInUse(). I can wait for > getting the label from disk no need to be in memory(because I have my own > neighborhood indexing which works just by demand on the part of the graph > that I'm focusing on) > > > > > On Thursday, October 6, 2016 at 4:38:32 PM UTC-7, Michael Hunger wrote: >> >> What are you using the labels for? >> >> On Thu, Oct 6, 2016 at 7:58 PM, Mohammad Hossain Namaki < >> mhn....@gmail.com> wrote: >> >>> Thanks. >>> So, there is no way that I can turn-off this indexing? My conjecture is >>> Neo4j is a disk-based database management system and it should use bounded >>> resources. If I have more resources it can use more and give me better >>> performance but if I don't have, it shouldn't. >>> Is there anyway to configure this in Java API? >>> >>> I'm just aware of "pagecache_memory": >>> >>> File storeDir = new File(dataGraphPath); >>> dataGraph = new GraphDatabaseFactory().newEmbeddedDatabaseBuilder(storeDir) >>> .setConfig(GraphDatabaseSettings.pagecache_memory, >>> "6g").newGraphDatabase(); >>> >>> >>> >>> >>> >>> On Thursday, October 6, 2016 at 2:13:15 AM UTC-7, Michael Hunger wrote: >>>> >>>> perhaps you can use a docker container instead which allows you to >>>> configure the open file limit? >>>> >>>> For storing the lookup from label -> list of nodes Neo4j uses an index >>>> under the hood. >>>> >>>> Michael >>>> >>>> On Wed, Oct 5, 2016 at 5:24 AM, Mohammad Hossain Namaki < >>>> mhn....@gmail.com> wrote: >>>> >>>>> Hi, >>>>> I've imported a huge dataset into Neo4j. 33M nodes and 144M >>>>> relationships. Thanks to Neo4j makers, "neo4j-importer" was very >>>>> efficient. >>>>> However, I'm getting (Too many open files) errors. >>>>> >>>>> >>>>> ... >>>>> >>>>> Caused by: java.nio.file.FileSystemException: >>>>> /fastscratch/mnamaki/idsForExp/idsAttackDB/schema/ >>>>> *label/lucene/labelStore/1*: *Too many open files* >>>>> >>>>> >>>>> I've read some question/answer regarding this. However, I'm not the >>>>> administrator of the system that I run my java code on there. I'm using >>>>> Neo4j 3.0 using java API. >>>>> >>>>> So, I cannot increase the hard-limit of no-files which is 10240 in the >>>>> linux server that I have. >>>>> >>>>> >>>>> Is there any way that I can shut down this feature of Neo4j? I didn't >>>>> "index" anything explicitly and just used a command to import nodes and >>>>> relationships there. >>>>> >>>>> Or >>>>> >>>>> Is there any way that I can handle this without admin priviledge? >>>>> >>>>> >>>>> How can I understand how many number of files this dataset is required? >>>>> >>>>> >>>>> Thanks. >>>>> >>>>> -- >>>>> 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 neo4j+un...@googlegroups.com. >>>>> 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 neo4j+un...@googlegroups.com. >>> 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 neo4j+unsubscr...@googlegroups.com. > 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 neo4j+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
