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COOL-cohort / COOL

the source code of the COOL system
https://www.comp.nus.edu.sg/~dbsystem/cool/
Apache License 2.0
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Crash when creating a new cublet for a single cube #148

Closed tinyAdapter closed 3 months ago

tinyAdapter commented 3 months ago

When loading a large dataset (over 1 GB) into COOL that requires a second cublet to be created, the system crashed with the following error:

Exception in thread "main" java.lang.NullPointerException
        at com.nus.cool.core.io.writestore.MetaUserFieldWS.put(MetaUserFieldWS.java:80)
        at com.nus.cool.core.io.writestore.MetaChunkWS.put(MetaChunkWS.java:144)
        at com.nus.cool.core.util.writer.NativeDataWriter.add(NativeDataWriter.java:177)
        at com.nus.cool.loader.DataLoader.load(DataLoader.java:78)
        at com.nus.cool.model.CoolLoader.load(CoolLoader.java:116)
        at com.nus.cool.functionality.CsvLoader.main(CsvLoader.java:48)