Swapnil Ghike created KAFKA-515:
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Summary: Log cleanup can close a file channel opnened by Log.read
before the transfer completes
Key: KAFKA-515
URL: https://issues.apache.org/jira/browse/KAFKA-515
Project: Kafka
Issue Type: Bug
Affects Versions: 0.8
Reporter: Swapnil Ghike
Fix For: 0.8
If consumers are lagging behind, then log cleanup activities can close a file
channel opened by Log.read
1. before the transfer the starts (broker will probably throw an exception in
this case) OR
2. during the transfer (possibility of half baked corrupted data being sent to
consumer?)
We probably haven't hit this race condition in practice because the consumers
consume data well before the logs are cleaned up.
To avoid this issue, we could avoid cleaning up the file until the transfer is
complete. Reference counting?
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