[KUDU-1346] Consensus queue crashes creating message for peer due to batch size

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.7.0
• Component/s: consensus
• Assignee: Unassigned
• Reporter: David Alves
• Created: 22/Feb/16 04:15
• Updated: 16/Feb/18 15:00

Description

bruce_song zhang hit the following error:

F0222 11:30:16.552686 23428 consensus_queue.cc:370] Check failed: request->ByteSize() <= FLAGS_consensus_max_batch_size_bytes (3042252 vs. 1048576) 
F0222 11:30:16.552693 23416 consensus_queue.cc:370] Check failed: request->ByteSize() <= FLAGS_consensus_max_batch_size_bytes (3042252 vs. 1048576)

It seems plausible that we might allow a write that is bigger than the max consensus batch size, and since there is a path in log cache that always sends at least one message, we might fail this check and crash.

The workaround is to set a bigger value than the default for --consensus_max_batch_size_bytes

Issue Links

• is duplicated by: KUDU-1632 Assert on request size in consensus_queue.cc
• is related to: KUDU-1775 Add guard rails before users hit untested behavior