Sergey Kirillov created CASSANDRA-13882:
-------------------------------------------

             Summary: Data corruption
                 Key: CASSANDRA-13882
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13882
             Project: Cassandra
          Issue Type: Bug
          Components: Local Write-Read Paths
         Environment: Ubuntu 16.04, Apache Cassandra 3.11.0
            Reporter: Sergey Kirillov


It seems that one of the tables in our project got corrupted for no obvious 
reasons. It is mostly read-only and suddenly all reads on a few servers started 
to return corrupted data which causing error in Python driver.

On the servers we see following errors:


{code:java}
ERROR [ReadRepairStage:140] 2017-09-18 11:57:08,726 CassandraDaemon.java:228 - 
Exception in thread Thread[ReadRepairStage:140,5,main]java.io.IOError: 
java.io.EOFException: EOF after 28 bytes out of 108
        at 
org.apache.cassandra.db.rows.UnfilteredRowIteratorSerializer$1.computeNext(UnfilteredRowIteratorSerializer.java:227)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.rows.UnfilteredRowIteratorSerializer$1.computeNext(UnfilteredRowIteratorSerializer.java:215)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterator.java:47) 
~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.rows.UnfilteredRowIterators.digest(UnfilteredRowIterators.java:178)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.partitions.UnfilteredPartitionIterators.digest(UnfilteredPartitionIterators.java:270)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.ReadResponse.makeDigest(ReadResponse.java:98) 
~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.ReadResponse$DataResponse.digest(ReadResponse.java:203) 
~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.service.DigestResolver.compareResponses(DigestResolver.java:87)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.service.ReadCallback$AsyncRepairRunner.run(ReadCallback.java:233)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
~[na:1.8.0_144]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
~[na:1.8.0_144]
        at 
org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_144]
Caused by: java.io.EOFException: EOF after 28 bytes out of 108
        at 
org.apache.cassandra.io.util.RebufferingInputStream.readFully(RebufferingInputStream.java:68)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.io.util.RebufferingInputStream.readFully(RebufferingInputStream.java:60)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.utils.ByteBufferUtil.read(ByteBufferUtil.java:402) 
~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.marshal.AbstractType.readValue(AbstractType.java:437) 
~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.rows.Cell$Serializer.deserialize(Cell.java:245) 
~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.rows.UnfilteredSerializer.readSimpleColumn(UnfilteredSerializer.java:639)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.rows.UnfilteredSerializer.lambda$deserializeRowBody$1(UnfilteredSerializer.java:604)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.utils.btree.BTree.applyForwards(BTree.java:1242) 
~[apache-cassandra-3.11.0.jar:3.11.0]
        at org.apache.cassandra.utils.btree.BTree.apply(BTree.java:1197) 
~[apache-cassandra-3.11.0.jar:3.11.0]
        at org.apache.cassandra.db.Columns.apply(Columns.java:377) 
~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.rows.UnfilteredSerializer.deserializeRowBody(UnfilteredSerializer.java:600)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.rows.UnfilteredSerializer.deserializeOne(UnfilteredSerializer.java:475)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.rows.UnfilteredSerializer.deserialize(UnfilteredSerializer.java:431)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        at 
org.apache.cassandra.db.rows.UnfilteredRowIteratorSerializer$1.computeNext(UnfilteredRowIteratorSerializer.java:222)
 ~[apache-cassandra-3.11.0.jar:3.11.0]
        ... 12 common frames omitted
{code}




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