# Questions about durableCommittedVersion

**URL:** https://forums.foundationdb.org/t/questions-about-durablecommittedversion/2950
**Category:** FoundationDB Core
**Created:** [October 17, 2021, 8:28am UTC](https://forums.foundationdb.org/t/questions-about-durablecommittedversion/2950 "2021-10-17T08:28:13Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![superhail](https://sea1.discourse-cdn.com/foundationdb/user_avatar/forums.foundationdb.org/superhail/32/1191_2.png) [@superhail](https://forums.foundationdb.org/u/superhail)
#### Post date: [October 17, 2021, 8:28am UTC](https://forums.foundationdb.org/t/questions-about-durablecommittedversion/2950/1 "2021-10-17T08:28:13Z")

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According to the paper, “Each LogServer keeps the maximum KCV received and a Durable Version (DV)”. shouldn’t this [line](https://github.com/apple/foundationdb/blob/0e4a6cc92101fdaf008e68f662316f52836f0c58/fdbserver/TLogServer.actor.cpp#L1994) be `logData->durableKnownCommittedVersion = std::max(logData->durableKnownCommittedVersion, knownCommittedVersion);`