[KAFKA-750] inconsistent index offset during broker startup

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Duplicate
• Affects Version/s: 0.8.0
• Fix Version/s: 0.8.0
• Component/s: log
• Labels: bugs p1
• Assignee: Jay Kreps
• Reporter: Jun Rao
• Created: 05/Feb/13 00:32
• Updated: 22/Feb/13 05:32
• Resolved: 20/Feb/13 01:16

Description

Saw the following log during a clean restart of a broker.

2013/01/29 19:18:12.073 INFO [FileMessageSet] [main] [kafka] [] Creating or reloading log segment /export/content/kafka/i001_caches/topic1-3/00000000000000000000.log2013/01/29 19:18:12.074 INFO [OffsetIndex] [main] [kafka] [] Created index file /export/content/kafka/i001_caches/topic1-3/00000000000000000000.index with maxEntries = 65
5360, maxIndexSize = 10485760, entries = 655360, lastOffset = 0

A couple of things are weird.
1. There are entries in the index, but lastOffset is 0.
2 maxIndexSize/manxEntries = 16, instead of 8.