I recently had a problem where my disk filled up while running splitter, but splitter did not exit, continuing to run for over an hour before I looked at it and killed the process. I assume it was waiting for something which could never happen. The log file ended with the following: Exception in thread "worker-4" Exception in thread "worker-2" Exception in thread "worker-3" Exception in thread "worker-0" Exception in thread "worker-6" Exception in thread "worker-1" uk.me.parabola.splitter.SplitFailedException: Thread worker-1 failed to write element at uk.me.parabola.splitter.SplitProcessor$OSMWriterWorker.run(SplitProcessor.ja va:421) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: java.io.IOException: There is not enough space on the disk at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java :81) at java.base/java.io.BufferedOutputStream.write(BufferedOutputStream.java:127) at java.base/java.io.ByteArrayOutputStream.writeTo(ByteArrayOutputStream.java:1 87) at uk.me.parabola.splitter.writer.O5mMapWriter.writeDataset(O5mMapWriter.java:2 03) at uk.me.parabola.splitter.writer.O5mMapWriter.write(O5mMapWriter.java:264) at uk.me.parabola.splitter.writer.AbstractOSMWriter.write(AbstractOSMWriter.jav a:88) at uk.me.parabola.splitter.SplitProcessor$OSMWriterWorker.run(SplitProcessor.ja va:417) ... 1 more Exception in thread "worker-5" uk.me.parabola.splitter.SplitFailedException: Thread worker-3 failed to write element at uk.me.parabola.splitter.SplitProcessor$OSMWriterWorker.run(SplitProcessor.ja va:421) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: java.io.IOException: There is not enough space on the disk at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java :81) at java.base/java.io.BufferedOutputStream.write(BufferedOutputStream.java:127) at java.base/java.io.ByteArrayOutputStream.writeTo(ByteArrayOutputStream.java:1 87) at uk.me.parabola.splitter.writer.O5mMapWriter.writeDataset(O5mMapWriter.java:2 03) at uk.me.parabola.splitter.writer.O5mMapWriter.write(O5mMapWriter.java:264) at uk.me.parabola.splitter.writer.AbstractOSMWriter.write(AbstractOSMWriter.jav a:88) at uk.me.parabola.splitter.SplitProcessor$OSMWriterWorker.run(SplitProcessor.ja va:417) ... 1 more uk.me.parabola.splitter.SplitFailedException: Thread worker-2 failed to write element at uk.me.parabola.splitter.SplitProcessor$OSMWriterWorker.run(SplitProcessor.ja va:421) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: java.io.IOException: There is not enough space on the disk at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java :81) Regards, Mike