I was trying to import a database with about 2-3 billion nodes. According to their documentation it should allow for as many as 35 billion nodes.
However, I still got this error message duing neo4j-import *Prepare node index* *^M[*:21.14 GB------------------------------------------------------------------------------------] 0^M[*:21.14 GB------------------------------------------------------------------------------------] 0^M[*:21.14 GB------------------------------------------------------------------------------------] 0^M[*:21.14 GB------------------------------------------------------------------------------------] 0Exception in thread "Thread-737" java.lang.ArithmeticException: Value 4386536741 is too big to be represented as java.lang.Integer* * at org.neo4j.unsafe.impl.batchimport.Utils.safeCastLongToInt(Utils.java:36)* * at org.neo4j.unsafe.impl.batchimport.cache.idmapping.string.ParallelSort.sortRadix(ParallelSort.java:142)* * at org.neo4j.unsafe.impl.batchimport.cache.idmapping.string.ParallelSort.run(ParallelSort.java:68)* * at org.neo4j.unsafe.impl.batchimport.cache.idmapping.string.EncodingIdMapper.prepare(EncodingIdMapper.java:270)* * at org.neo4j.unsafe.impl.batchimport.IdMapperPreparationStep.process(IdMapperPreparationStep.java:54)* * at org.neo4j.unsafe.impl.batchimport.staging.LonelyProcessingStep$1.run(LonelyProcessingStep.java:56)* *Import error: Value 4386536741 is too big to be represented as java.lang.Integer* *java.lang.ArithmeticException: Value 4386536741 is too big to be represented as java.lang.Integer* * at org.neo4j.unsafe.impl.batchimport.Utils.safeCastLongToInt(Utils.java:36)* * at org.neo4j.unsafe.impl.batchimport.cache.idmapping.string.ParallelSort.sortRadix(ParallelSort.java:142)* * at org.neo4j.unsafe.impl.batchimport.cache.idmapping.string.ParallelSort.run(ParallelSort.java:68)* * at org.neo4j.unsafe.impl.batchimport.cache.idmapping.string.EncodingIdMapper.prepare(EncodingIdMapper.java:270)* * at org.neo4j.unsafe.impl.batchimport.IdMapperPreparationStep.process(IdMapperPreparationStep.java:54)* * at org.neo4j.unsafe.impl.batchimport.staging.LonelyProcessingStep$1.run(LonelyProcessingStep.java:56)* *Exception in thread "TrackerInitializer-26" java.lang.ArrayIndexOutOfBoundsException: Requested index -1915368251, but length is 2837264380* * at org.neo4j.unsafe.impl.batchimport.cache.OffHeapNumberArray.addressOf(OffHeapNumberArray.java:54)* * at org.neo4j.unsafe.impl.batchimport.cache.OffHeapIntArray.set(OffHeapIntArray.java:48)* * at org.neo4j.unsafe.impl.batchimport.cache.idmapping.string.ParallelSort$TrackerInitializer.run(ParallelSort.java:411)* * at org.neo4j.unsafe.impl.batchimport.cache.idmapping.string.Workers$Worker.run(Workers.java:123)* It looks to me that something went wrong while neo4j was trying to creating the index. here comes my questions: 1. I assume the problem is that the index type is set to java.lang.integer by default, *is that true*? ---- And it would also be greatly appreciated if some one can help me understand what is the value 4386536741 here? I definitely don't have that many nodes 2. What ever whose datatype it is, *how do I change that to java.lang.long in the neo4j-import command*? Thanks a lot for your time. -- 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.
