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Merge pull request #13068 from ClickHouse/better_logging_on_mutation_skip

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Better logging on mutation skip
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alesapin 2020-07-29 16:18:13 +03:00 committed by GitHub
commit 0b6d0059cb
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1 changed files with 8 additions and 1 deletions
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9
src/Storages/StorageMergeTree.cpp
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@ -750,8 +750,15 @@ bool StorageMergeTree::tryMutatePart()
if (mutations_begin_it == mutations_end_it)
continue;
if (merger_mutator.getMaxSourcePartSizeForMutation() < part->getBytesOnDisk())
size_t max_source_part_size = merger_mutator.getMaxSourcePartSizeForMutation();
if (max_source_part_size < part->getBytesOnDisk())
{
LOG_DEBUG(log, "Current max source part size for mutation is {} but part size {}. Will not mutate part {}. "
"Max size depends not only on available space, but also on settings "
"'number_of_free_entries_in_pool_to_execute_mutation' and 'background_pool_size'",
max_source_part_size, part->getBytesOnDisk(), part->name);
continue;
}
size_t current_ast_elements = 0;
for (auto it = mutations_begin_it; it != mutations_end_it; ++it)