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  1. Cassandra
  2. CASSANDRA-13246

Querying by secondary index on collection column returns NullPointerException sometimes

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    • Correctness - API / Semantic Implementation
    • Normal

    Description

      Not sure if this is the absolute minimal case that produces the bug, but here are the steps for reproducing.

      1. Create table

      CREATE TABLE test (
      id text,
      ck1 text,
      ck2 text,
      static_value text static,
      set_value set<text>,
      primary key (id, ck1, ck2)
      );
      

      2. Create secondary indices on the clustering columns, static column, and collection column

      create index on test (set_value);
      create index on test (static_value);
      create index on test (ck1);
      create index on test (ck2);
      

      3. Insert a null value into the `set_value` column

      insert into test (id, ck1, ck2, static_value, set_value) values ('id', 'key1', 'key2', 'static', {'one', 'two'} );
      

      Sanity check:

      select * from test;
      
       id | ck1  | ck2  | static_value | set_value
      ----+------+------+--------------+----------------
       id | key1 | key2 |       static | {'one', 'two'}
      

      4. Set the set_value to be empty

      update test set set_value = {} where id = 'id' and ck1 = 'key1' and ck2 = 'key2';
      

      5. Make a select query that uses `CONTAINS` in the `set_value` column

      select * from test where ck2 = 'key2' and static_value = 'static' and set_value contains 'one' allow filtering;
      

      Here we get a ReadFailure:

      ReadFailure: Error from server: code=1300 [Replica(s) failed to execute read] message="Operation failed - received 0 responses and 1 failures" info={'failures': 1, 'received_responses': 0, 'required_responses': 1, 'consistency': 'ONE'}
      

      Logs show a NullPointerException

      java.lang.RuntimeException: java.lang.NullPointerException
             	at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2470) ~[apache-cassandra-3.7.jar:3.7]
             	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_101]
             	at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$LocalSessionFutureTask.run(AbstractLocalAwareExecutorService.java:136) [apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) [apache-cassandra-3.7.jar:3.7]
             	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
      Caused by: java.lang.NullPointerException: null
             	at org.apache.cassandra.db.filter.RowFilter$SimpleExpression.isSatisfiedBy(RowFilter.java:720) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.filter.RowFilter$CQLFilter$1IsSatisfiedFilter.applyToRow(RowFilter.java:303) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.transform.BaseRows.hasNext(BaseRows.java:120) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.filter.RowFilter$CQLFilter$1IsSatisfiedFilter.applyToPartition(RowFilter.java:293) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.filter.RowFilter$CQLFilter$1IsSatisfiedFilter.applyToPartition(RowFilter.java:281) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartitions.java:76) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.partitions.UnfilteredPartitionIterators$Serializer.serialize(UnfilteredPartitionIterators.java:289) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.ReadResponse$LocalDataResponse.build(ReadResponse.java:134) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.ReadResponse$LocalDataResponse.<init>(ReadResponse.java:127) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.ReadResponse$LocalDataResponse.<init>(ReadResponse.java:123) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.ReadResponse.createDataResponse(ReadResponse.java:65) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.db.ReadCommand.createResponse(ReadCommand.java:292) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1799) ~[apache-cassandra-3.7.jar:3.7]
             	at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2466) ~[apache-cassandra-3.7.jar:3.7]
             	... 5 common frames omitted
      

      Attachments

        1. cassandra-13246.diff
          8 kB
          Mikkel Andersen

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              Unassigned Unassigned
              hochung hochung
              Benjamin Lerer
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                Created:
                Updated:
                Resolved: