[Bigdata-developers] Trying to import Wikidata

[Rune S. <rs...@un...>]

Hi list

I’m trying to import wikidata into a graphdb EC2-instance. But the import stops with an exception

> Caused by: java.io.IOException: No space left on device


There seems to be plenty of space left though:

> $ df -h
> Filesystem Size Used Avail Use% Mounted on
> devtmpfs 7.9G 68K 7.9G 1% /dev
> tmpfs 7.9G 0 7.9G 0% /dev/shm
> /dev/xvda1 493G 23G 470G 5% /
> /dev/xvdb1 1008G 382G 585G 40% /data


The blazegraph.jnl file is located in the /data folder.

What could be the problem?

Regards,
Rune Stilling
at com.bigdata.btree.AbstractBTree.writeNodeRecursiveConcurrent(AbstractBTree.java:4131)
at com.bigdata.btree.AbstractBTree.writeNodeRecursive(AbstractBTree.java:3844)
at com.bigdata.btree.DefaultEvictionListener.doEviction(DefaultEvictionListener.java:139)
at com.bigdata.btree.DefaultEvictionListener.evicted(DefaultEvictionListener.java:75)
at com.bigdata.btree.DefaultEvictionListener.evicted(DefaultEvictionListener.java:37)
at com.bigdata.cache.HardReferenceQueue.evict(HardReferenceQueue.java:226)
at com.bigdata.cache.HardReferenceQueue.beforeOffer(HardReferenceQueue.java:199)
at com.bigdata.cache.RingBuffer.add(RingBuffer.java:159)
at com.bigdata.cache.HardReferenceQueue.add(HardReferenceQueue.java:176)
at com.bigdata.btree.AbstractBTree.doTouch(AbstractBTree.java:3766)
at com.bigdata.btree.AbstractBTree.doSyncTouch(AbstractBTree.java:3722)
at com.bigdata.btree.AbstractBTree.touch(AbstractBTree.java:3685)
at com.bigdata.btree.AbstractNode.<init>(AbstractNode.java:298)
at com.bigdata.btree.Leaf.<init>(Leaf.java:348)
at com.bigdata.btree.BTree$NodeFactory.allocLeaf(BTree.java:1936)
at com.bigdata.btree.NodeSerializer.wrap(NodeSerializer.java:411)
at com.bigdata.btree.AbstractBTree.readNodeOrLeaf(AbstractBTree.java:4584)
at com.bigdata.btree.Node._getChild(Node.java:2746)
at com.bigdata.btree.AbstractBTree$1.compute(AbstractBTree.java:377)
at com.bigdata.btree.AbstractBTree$1.compute(AbstractBTree.java:360)
at com.bigdata.util.concurrent.Memoizer$1.call(Memoizer.java:77)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at com.bigdata.util.concurrent.Memoizer.compute(Memoizer.java:92)
at com.bigdata.btree.AbstractBTree.loadChild(AbstractBTree.java:546)
at com.bigdata.btree.Node.getChild(Node.java:2644)
at com.bigdata.btree.Node.lookup(Node.java:938)
at com.bigdata.btree.Node.lookup(Node.java:940)
at com.bigdata.btree.Node.lookup(Node.java:940)
at com.bigdata.btree.Node.lookup(Node.java:940)
at com.bigdata.btree.Node.lookup(Node.java:940)
at com.bigdata.btree.Node.lookup(Node.java:940)
at com.bigdata.btree.Node.lookup(Node.java:940)
at com.bigdata.btree.AbstractBTree.lookup(AbstractBTree.java:2455)
at com.bigdata.btree.AbstractBTree.lookup(AbstractBTree.java:2383)
at com.bigdata.rdf.spo.SPOIndexWriteProc.applyOnce(SPOIndexWriteProc.java:232)
at com.bigdata.btree.proc.AbstractKeyArrayIndexProcedure.apply(AbstractKeyArrayIndexProcedure.java:381)
at com.bigdata.btree.UnisolatedReadWriteIndex.submit(UnisolatedReadWriteIndex.java:723)
at com.bigdata.rdf.spo.SPOIndexWriter.call(SPOIndexWriter.java:363)
at com.bigdata.rdf.spo.SPOIndexWriter.call(SPOIndexWriter.java:68)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: No space left on device
at sun.nio.ch.FileDispatcherImpl.pwrite0(Native Method)
at sun.nio.ch.FileDispatcherImpl.pwrite(FileDispatcherImpl.java:66)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:89)
at sun.nio.ch.IOUtil.write(IOUtil.java:51)
at sun.nio.ch.FileChannelImpl.writeInternal(FileChannelImpl.java:771)
at sun.nio.ch.FileChannelImpl.write(FileChannelImpl.java:756)
at com.bigdata.io.FileChannelUtility.writeAll(FileChannelUtility.java:610)
at com.bigdata.io.FileChannelUtility.writeAll(FileChannelUtility.java:509)
at com.bigdata.journal.DiskOnlyStrategy.writeOnDisk(DiskOnlyStrategy.java:2287)