[CASSANDRA-10630] NullPointerException in DeletionInfo.isDeleted

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Duplicate
• Component/s: Legacy/CQL

Environment

Linux 64 bits

• Severity: Normal
• Since Version: 2.1.11
• Assignee: Unassigned
• Reporter: Brice Figureau
• Created: 31/Oct/15 16:03
• Updated: 16/Apr/19 09:30
• Resolved: 31/Oct/15 16:29

Description

The following CQL query:

select count(*) from messages;

sometimes produces the following stack trace:

ERROR [SharedPool-Worker-1] 2015-10-31 16:32:22,606 ErrorMessage.java:251 - Unexpected exception during request
java.lang.NullPointerException: null
	at org.apache.cassandra.db.DeletionInfo.isDeleted(DeletionInfo.java:138) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.service.pager.RangeSliceQueryPager.containsPreviousLast(RangeSliceQueryPager.java:102) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.service.pager.AbstractQueryPager.fetchPage(AbstractQueryPager.java:119) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.service.pager.RangeSliceQueryPager.fetchPage(RangeSliceQueryPager.java:39) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.cql3.statements.SelectStatement.pageCountQuery(SelectStatement.java:286) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:230) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:67) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:238) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:260) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:122) ~[apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:439) [apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:335) [apache-cassandra-2.1.11.jar:2.1.11]
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) [netty-all-4.0.23.Final.jar:4.0.23.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333) [netty-all-4.0.23.Final.jar:4.0.23.Final]
	at io.netty.channel.AbstractChannelHandlerContext.access$700(AbstractChannelHandlerContext.java:32) [netty-all-4.0.23.Final.jar:4.0.23.Final]
	at io.netty.channel.AbstractChannelHandlerContext$8.run(AbstractChannelHandlerContext.java:324) [netty-all-4.0.23.Final.jar:4.0.23.Final]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_51]
	at org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164) [apache-cassandra-2.1.11.jar:2.1.11]
	at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) [apache-cassandra-2.1.11.jar:2.1.11]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_51]

After taking a snapshot on all participating nodes, the query starts to apparently succeed.

The table schema is:

CREATE TABLE akka.messages (
    persistence_id text,
    partition_nr bigint,
    sequence_nr bigint,
    message blob,
    used boolean static,
    PRIMARY KEY ((persistence_id, partition_nr), sequence_nr)
) WITH CLUSTERING ORDER BY (sequence_nr ASC)
    AND bloom_filter_fp_chance = 0.01
    AND caching = '{"keys":"ALL", "rows_per_partition":"NONE"}'
    AND comment = ''
    AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'}
    AND compression = {'sstable_compression': 'org.apache.cassandra.io.compress.LZ4Compressor'}
    AND dclocal_read_repair_chance = 0.1
    AND default_time_to_live = 0
    AND gc_grace_seconds = 864000
    AND max_index_interval = 2048
    AND memtable_flush_period_in_ms = 0
    AND min_index_interval = 128
    AND read_repair_chance = 0.0
    AND speculative_retry = '99.0PERCENTILE';

(this is from the Akka Cassandra Persistence journal plugin)

Issue Links

• duplicates: CASSANDRA-10381 NullPointerException in cqlsh paging through CF with static columns