CODEWITHSUNDEEP
cassandra
Ema Il
Ema Il

Reputation: 417

java.io.EOFException using sstabledump

I have a script that downloads all the necessary files to use sstabledump from gcloud and then dumps them to a json but for some reason i got this error:

java.io.EOFException
        at org.apache.cassandra.io.util.RebufferingInputStream.readByte(RebufferingInputStream.java:180)
        at org.apache.cassandra.io.util.RebufferingInputStream.readPrimitiveSlowly(RebufferingInputStream.java:142)
        at org.apache.cassandra.io.util.RebufferingInputStream.readInt(RebufferingInputStream.java:222)
        at org.apache.cassandra.io.sstable.metadata.MetadataSerializer.deserialize(MetadataSerializer.java:157)
        at org.apache.cassandra.io.sstable.metadata.MetadataSerializer.deserialize(MetadataSerializer.java:132)
        at org.apache.cassandra.tools.Util.metadataFromSSTable(Util.java:317)
        at org.apache.cassandra.tools.SSTableExport.main(SSTableExport.java:144)
java.io.EOFException
        at org.apache.cassandra.io.util.RebufferingInputStream.readByte(RebufferingInputStream.java:180)
        at org.apache.cassandra.io.util.RebufferingInputStream.readPrimitiveSlowly(RebufferingInputStream.java:142)
        at org.apache.cassandra.io.util.RebufferingInputStream.readInt(RebufferingInputStream.java:222)
        at org.apache.cassandra.io.sstable.metadata.MetadataSerializer.deserialize(MetadataSerializer.java:157)
        at org.apache.cassandra.io.sstable.metadata.MetadataSerializer.deserialize(MetadataSerializer.java:132)
        at org.apache.cassandra.tools.Util.metadataFromSSTable(Util.java:317)
        at org.apache.cassandra.tools.SSTableExport.main(SSTableExport.java:144)

any idea on why that could happen?

Upvotes: 0

Views: 136

Answers (1)

Erick Ramirez
Erick Ramirez

Reputation: 16353

That indicates to me that one (or more) of the SSTables is incomplete or corrupted.

The end-of-file exception (EOFException) gets thrown because the SSTable metadata indicates that there's more data in the *-Data.db file but the end of the file was reached.

This is expected if you are copying the files from the live data/* subdirectories because the files have not necessarily been (a) fully flushed to disk, or (b) not fully compacted yet.

I recommend that you do a nodetool snapshot and only copy the SSTables from the snapshots/* subdirectories to ensure that the files are fully consistent. Cheers!

Upvotes: 2

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