Ilya created MESOS-10216:
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Summary: Replicated log key encoding
Key: MESOS-10216
URL: https://issues.apache.org/jira/browse/MESOS-10216
Project: Mesos
Issue Type: Bug
Components: replicated log
Affects Versions: 1.11.0
Reporter: Ilya
LevelDB keys used by {{LevelDBStorage}} are {{uint64_t}} log positions encoded
as strings and padded with zeroes up to a certain fixed size. The {{encode()}}
function is incorrect because it uses the {{%d}} formatter that expects an
{{int}}. It also limits the key size to 10 digits which is OK for
{{UINT32_MAX}} but isn't enough for {{UINT64_MAX}}.
Because of this the available key range is reduced, and key overflow can result
in replica's {{METADATA}} record (position 0) being overwritten, which in turn
may cause data loss.
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