ERROR caused by: There is not enough space on the disk

I am getting this error during my graph run. I am reading 14 large csv files and trying to consolidate into a single file.

Here is error log of message:

INFO [WatchDog] - ---------------------** Start of tracking Log for phase [0] **-------------------
INFO [WatchDog] - Time: 06/06/11 16:14:33
INFO [WatchDog] - Node ID Port #Records #KB Rec/s KB/s
INFO [WatchDog] - ---------------------------------------------------------------------------------
INFO [WatchDog] - UniversalDataReader DATA_READER9 FINISHED_OK
INFO [WatchDog] - %cpu:0.02 Out:0 27447 41782 0 0
INFO [WatchDog] - UniversalDataReader DATA_READER8 RUNNING
INFO [WatchDog] - %cpu:0.03 Out:0 35427 66293 163 304
INFO [WatchDog] - UniversalDataReader DATA_READER7 RUNNING
INFO [WatchDog] - %cpu:0.03 Out:0 32543 64471 158 315
INFO [WatchDog] - UniversalDataReader DATA_READER6 FINISHED_OK
INFO [WatchDog] - %cpu:.. Out:0 3651 7053 0 0
INFO [WatchDog] - UniversalDataReader DATA_READER5 FINISHED_OK
INFO [WatchDog] - %cpu:0.01 Out:0 15409 27172 0 0
INFO [WatchDog] - UniversalDataReader DATA_READER4 RUNNING
INFO [WatchDog] - %cpu:0.03 Out:0 35673 65626 215 382
INFO [WatchDog] - UniversalDataReader DATA_READER3 RUNNING
INFO [WatchDog] - %cpu:0.03 Out:0 43071 63963 226 344
INFO [WatchDog] - UniversalDataReader DATA_READER2 FINISHED_OK
INFO [WatchDog] - %cpu:.. Out:0 83 164 0 0
INFO [WatchDog] - UniversalDataReader DATA_READER14 RUNNING
INFO [WatchDog] - %cpu:0.04 Out:0 44631 78909 826 1420
INFO [WatchDog] - UniversalDataReader DATA_READER13 FINISHED_OK
INFO [WatchDog] - %cpu:.. Out:0 8757 13914 0 0
INFO [WatchDog] - UniversalDataReader DATA_READER12 FINISHED_OK
INFO [WatchDog] - %cpu:.. Out:0 2360 3304 0 0
INFO [WatchDog] - UniversalDataReader DATA_READER11 FINISHED_OK
INFO [WatchDog] - %cpu:0.01 Out:0 11353 21348 0 0
INFO [WatchDog] - UniversalDataReader DATA_READER10 FINISHED_OK
INFO [WatchDog] - %cpu:0.01 Out:0 16907 26805 0 0
INFO [WatchDog] - UniversalDataReader DATA_READER1 FINISHED_OK
INFO [WatchDog] - %cpu:.. Out:0 8046 16405 0 0
INFO [WatchDog] - UniversalDataReader DATA_READER0 FINISHED_OK
INFO [WatchDog] - %cpu:.. Out:0 45 84 0 0
INFO [WatchDog] - ---------------------------------** End of Log **--------------------------------
WARN [DATA_READER14_0] - Parsing error: Unexpected default field delimiter, probably record has too many fields. in field # 92 of record # 45620, value: '<Raw record data is not available, please turn on verbose mode.>'
ERROR [WatchDog] - Graph execution finished with error
ERROR [WatchDog] - Node DATA_READER4 finished with status: ERROR caused by: There is not enough space on the disk
ERROR [WatchDog] - Node DATA_READER4 error details:
java.io.IOException: There is not enough space on the disk
at sun.nio.ch.FileDispatcher.write0(Native Method)
at sun.nio.ch.FileDispatcher.write(FileDispatcher.java:44)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:104)
at sun.nio.ch.IOUtil.write(IOUtil.java:60)
at sun.nio.ch.FileChannelImpl.write(FileChannelImpl.java:203)
at org.jetel.data.tape.DataRecordTape$DataChunk.flushBuffer(DataRecordTape.java:894)
at org.jetel.data.tape.DataRecordTape$DataChunk.put(DataRecordTape.java:612)
at org.jetel.data.tape.DataRecordTape.put(DataRecordTape.java:385)
at org.jetel.graph.PhaseConnectionEdge.writeRecord(PhaseConnectionEdge.java:221)
at org.jetel.graph.Edge.writeRecord(Edge.java:371)
at org.jetel.component.DataReader.execute(DataReader.java:268)
at org.jetel.graph.Node.run(Node.java:425)
at java.lang.Thread.run(Thread.java:619)