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Delayed Writes: fix L0 calc bug #311

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merged 1 commit into from Dec 25, 2022

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Yuval-Ariel
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@Yuval-Ariel Yuval-Ariel self-assigned this Dec 23, 2022
@Yuval-Ariel Yuval-Ariel linked an issue Dec 23, 2022 that may be closed by this pull request
@@ -1013,15 +1013,15 @@ ColumnFamilyData::CalculateWriteDelayDividerAndMaybeUpdateWriteStallCause(

// L0 files
double l0_divider = 1;
const auto extra_l0_ssts = vstorage->NumLevelFiles(0) -
const auto extra_l0_ssts = vstorage->l0_delay_trigger_count() -
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it means that you used the incorrect value to calc the write delay , right?

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i think that l0_delay_trigger_count() is used generically which works for universal compaction as well. it worked just as well before but i noticed that l0_delay_trigger_count() is used to count the L0 files before and after that point in the code..

@Yuval-Ariel Yuval-Ariel force-pushed the 310-delayed-writes-l0-file-calculation-bug branch from 2d812fb to 34aaeaa Compare December 25, 2022 14:20
@Yuval-Ariel Yuval-Ariel merged commit 2f46760 into main Dec 25, 2022
@Yuval-Ariel Yuval-Ariel deleted the 310-delayed-writes-l0-file-calculation-bug branch December 26, 2022 13:04
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Delayed Writes L0 file calculation bug
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