Colin Patrick McCabe created HDFS-3440:
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Summary: should more effectively limit stream memory consumption
when reading corrupt edit logs
Key: HDFS-3440
URL: https://issues.apache.org/jira/browse/HDFS-3440
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Colin Patrick McCabe
Assignee: Colin Patrick McCabe
Priority: Minor
Attachments: number1.001.patch
Currently, we do in.mark(100MB) before reading an opcode out of the edit log.
However, this could result in us usin all of those 100 MB when reading bogus
data, which is not what we want. It also could easily make some corrupt edit
log files unreadable.
We should have a stream limiter interface, that causes a clean IOException when
we're in this situation, and does not result in huge memory consumption.
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