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Sergey Fedorov 2013-12-03 16:14:36 +00:00
parent 544f935bcf
commit 67745b8a7e
1 changed files with 1 additions and 1 deletions
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dbms/src/Storages/StorageMergeTree.cpp
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@ -926,7 +926,7 @@ bool StorageMergeTree::selectPartsToMerge(std::vector<DataPartPtr> & parts, bool
double time_ratio_modifier = 0.5 + 9 * static_cast<double>(cur_age_in_sec) / (3600*24*30 + cur_age_in_sec);
/// Двоичный логарифм суммарного размера кусочков
double log_cur_sum = std::log(cur_sum) / std::log(2);
double log_cur_sum = std::log(cur_sum * index_granularity) / std::log(2);
/// Равен ~2 если куски маленькие, уменьшается до 0.5 с увеличением суммарного размера до 2^25.
double size_ratio_modifier = std::max(0.25, 2 - 3 * (log_cur_sum) / (25 + log_cur_sum));