Hari Shreedharan created FLUME-1893:
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Summary: File Channel could miss possible checkpoint corruption
Key: FLUME-1893
URL: https://issues.apache.org/jira/browse/FLUME-1893
Project: Flume
Issue Type: Bug
Reporter: Hari Shreedharan
If the first 4 bytes of the checkpoint are overwritten, then the current sanity
check will miss it because we read the first long and then cast it to an int,
missing the first 4 bytes when we check the version. First 4 bytes being
corrupt could indicate further corruption in the checkpoint which cannot be
verified because the remaining data consists mostly of pointers to files, which
if not used are simply ignored by the replay mechanism
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