[CASSANDRA-3303] Short reads protection results in returning more columns than asked for

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 1.0.2
• Severity: Low
• Assignee: Byron Clark
• Reporter: Sylvain Lebresne

Authors

Byron Clark

Reviewers

Sylvain Lebresne

• Created: 04/Oct/11 09:04
• Updated: 16/Apr/19 09:32
• Resolved: 04/Nov/11 08:37

Description

When we detect a short read (in SP.fetchRows), we retry a new command created by:

logger.debug("detected short read: expected {} columns, but only resolved {} columns", sliceCommand.count, liveColumnsInRow);
int retryCount = sliceCommand.count + sliceCommand.count - liveColumnsInRow;
SliceFromReadCommand retryCommand = new SliceFromReadCommand(command.table,
                                                             command.key,
                                                             command.queryPath,
                                                             sliceCommand.start,
                                                             sliceCommand.finish,
                                                             sliceCommand.reversed,
                                                             retryCount);

That is, in that new command, the count is greater than what asked in the initial command. But we never cut back the result of that new retried query.