Jie Yu created MESOS-993:
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Summary: Performance issue during replicated log catch-up when the
log positions are large
Key: MESOS-993
URL: https://issues.apache.org/jira/browse/MESOS-993
Project: Mesos
Issue Type: Bug
Affects Versions: 0.17.0
Reporter: Jie Yu
Assignee: Jie Yu
Fix For: 0.18.0
Inside Replica::persist(const Action& action), we update the in-memory 'holes'
data structure
// Update holes if we just wrote many positions past the last end.
for (uint64_t position = end + 1; position < action.position(); position++) {
holes.insert(position);
}
During catch-up (starts with an empty log), if the 'position' is very large, we
may spend a lot of time in this loop. Also, the data structure 'holes' might
become extremely large.
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