You have to remove the comment signs (#) at the beginning of the lines in the config file.
# Initial Java Heap Size (in MB) wrapper.java.initmemory=6400 # Maximum Java Heap Size (in MB) wrapper.java.maxmemory=6400 I assume you have JDK 7_21 or _25 running which consequently only allocates a tiny bit of memory. You should also look into conf/neo4j.properties and adapt the memory mapping setting to roughly match the store-file sizes in data/graph.db Usually this works automatically, but just in case :) Cheers Michael On Wed, Jan 22, 2014 at 11:19 PM, Alx <[email protected]> wrote: > I am new to Neo4j and I started playing with DocGraph ( > https://dl.dropboxusercontent.com/u/57740873/neo_doc_v1.tar.gz) . It is a > 1.8 database describing referrals between physicians. The database is > loaded to Neo4j but when I try to do any query from the webrowser the > server crashes. I checked the log and here is the output: > > 2014-01-22 21:51:39.453+0000 WARN [o.n.k.EmbeddedGraphDatabase]: GC > Monitor: Application threads blocked for an additional 905ms [total block > time: 7.715s] > 2014-01-22 21:51:40.327+0000 WARN [o.n.k.EmbeddedGraphDatabase]: GC > Monitor: Application threads blocked for an additional 774ms [total block > time: 8.489s] > 2014-01-22 21:51:41.456+0000 WARN [o.n.k.EmbeddedGraphDatabase]: GC > Monitor: Application threads blocked for an additional 1029ms [total block > time: 9.518s] > 2014-01-22 21:51:42.542+0000 WARN [o.n.k.EmbeddedGraphDatabase]: GC > Monitor: Application threads blocked for an additional 954ms [total block > time: 10.472s] > 2014-01-22 21:51:43.779+0000 WARN [o.n.k.EmbeddedGraphDatabase]: GC > Monitor: Application threads blocked for an additional 1137ms [total block > time: 11.609s] > 2014-01-22 21:51:44.815+0000 WARN [o.n.k.EmbeddedGraphDatabase]: GC > Monitor: Application threads blocked for an additional 892ms [total block > time: 12.501s] > > I increased the Java memory. Here are the settings when the server starts: > > 2014-01-22 21:48:51.389+0000 INFO [o.n.k.i.DiagnosticsManager]: System > memory information: > 2014-01-22 21:48:51.390+0000 INFO [o.n.k.i.DiagnosticsManager]: Total > Physical memory: 16.00 GB > 2014-01-22 21:48:51.391+0000 INFO [o.n.k.i.DiagnosticsManager]: Free > Physical memory: 1.41 GB > 2014-01-22 21:48:51.391+0000 INFO [o.n.k.i.DiagnosticsManager]: Committed > virtual memory: 2.75 GB > 2014-01-22 21:48:51.392+0000 INFO [o.n.k.i.DiagnosticsManager]: Total > swap space: 1.00 GB > 2014-01-22 21:48:51.392+0000 INFO [o.n.k.i.DiagnosticsManager]: Free swap > space: 841.50 MB > 2014-01-22 21:48:51.392+0000 INFO [o.n.k.i.DiagnosticsManager]: JVM > memory information: > 2014-01-22 21:48:51.393+0000 INFO [o.n.k.i.DiagnosticsManager]: Free > memory: 2.06 MB > 2014-01-22 21:48:51.393+0000 INFO [o.n.k.i.DiagnosticsManager]: Total > memory: 7.00 MB > 2014-01-22 21:48:51.393+0000 INFO [o.n.k.i.DiagnosticsManager]: Max > memory: 121.88 MB > 2014-01-22 21:48:51.394+0000 INFO [o.n.k.i.DiagnosticsManager]: Garbage > Collector: ParNew: [Par Eden Space, Par Survivor Space] > 2014-01-22 21:48:51.395+0000 INFO [o.n.k.i.DiagnosticsManager]: Garbage > Collector: ConcurrentMarkSweep: [Par Eden Space, Par Survivor Space, CMS > Old Gen, CMS Perm Gen] > 2014-01-22 21:48:51.396+0000 INFO [o.n.k.i.DiagnosticsManager]: Memory > Pool: Code Cache (Non-heap memory): committed=2.44 MB, used=703.75 kB, > max=48.00 MB, threshold=0.00 B > 2014-01-22 21:48:51.396+0000 INFO [o.n.k.i.DiagnosticsManager]: Memory > Pool: Par Eden Space (Heap memory): committed=1.94 MB, used=1.86 MB, > max=33.06 MB, threshold=? > 2014-01-22 21:48:51.396+0000 INFO [o.n.k.i.DiagnosticsManager]: Memory > Pool: Par Survivor Space (Heap memory): committed=192.00 kB, used=191.98 > kB, max=4.13 MB, threshold=? > 2014-01-22 21:48:51.397+0000 INFO [o.n.k.i.DiagnosticsManager]: Memory > Pool: CMS Old Gen (Heap memory): committed=4.88 MB, used=2.93 MB, max=84.69 > MB, threshold=0.00 B > 2014-01-22 21:48:51.397+0000 INFO [o.n.k.i.DiagnosticsManager]: Memory > Pool: CMS Perm Gen (Non-heap memory): committed=20.96 MB, used=13.16 MB, > max=82.00 MB, > > I have changed the JVM settings in to: > > # Initial Java Heap Size (in MB) > #wrapper.java.initmemory=160 > > # Maximum Java Heap Size (in MB) > #wrapper.java.maxmemory=6400 > > > Do you have any suggestions on how to tackle this issue? Can anyone > replicate my problem with the database above? > > Thanks, > Alex > > > > -- > 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/groups/opt_out. > -- 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/groups/opt_out.
