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Merge pull request #51498 from ClickHouse/vdimir/test_alter_moving_garbage_51342

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Fix `test_alter_moving_garbage`: lock between getActiveContainingPart and swapActivePart in parts mover
This commit is contained in:
Alexey Milovidov 2023-07-05 00:32:21 +03:00 committed by GitHub
commit 3371e038cf
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4 changed files with 15 additions and 5 deletions
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9
src/Storages/MergeTree/MergeTreeData.cpp
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@ -4529,9 +4529,8 @@ MergeTreeData::DataPartPtr MergeTreeData::getActiveContainingPart(
}
void MergeTreeData::swapActivePart(MergeTreeData::DataPartPtr part_copy)
void MergeTreeData::swapActivePart(MergeTreeData::DataPartPtr part_copy, DataPartsLock &)
{
auto lock = lockParts();
for (auto original_active_part : getDataPartsStateRange(DataPartState::Active)) // NOLINT (copy is intended)
{
if (part_copy->name == original_active_part->name)
@ -4587,6 +4586,12 @@ MergeTreeData::DataPartPtr MergeTreeData::getActiveContainingPart(const String &
return getActiveContainingPart(part_info);
}
MergeTreeData::DataPartPtr MergeTreeData::getActiveContainingPart(const String & part_name, DataPartsLock & lock) const
{
auto part_info = MergeTreePartInfo::fromPartName(part_name, format_version);
return getActiveContainingPart(part_info, DataPartState::Active, lock);
}
MergeTreeData::DataPartsVector MergeTreeData::getVisibleDataPartsVectorInPartition(ContextPtr local_context, const String & partition_id) const
{
return getVisibleDataPartsVectorInPartition(local_context->getCurrentTransaction().get(), partition_id);

3
src/Storages/MergeTree/MergeTreeData.h
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@ -504,12 +504,13 @@ public:
/// Returns a part in Active state with the given name or a part containing it. If there is no such part, returns nullptr.
DataPartPtr getActiveContainingPart(const String & part_name) const;
DataPartPtr getActiveContainingPart(const String & part_name, DataPartsLock & lock) const;
DataPartPtr getActiveContainingPart(const MergeTreePartInfo & part_info) const;
DataPartPtr getActiveContainingPart(const MergeTreePartInfo & part_info, DataPartState state, DataPartsLock & lock) const;
/// Swap part with it's identical copy (possible with another path on another disk).
/// If original part is not active or doesn't exist exception will be thrown.
void swapActivePart(MergeTreeData::DataPartPtr part_copy);
void swapActivePart(MergeTreeData::DataPartPtr part_copy, DataPartsLock &);
/// Returns all parts in specified partition
DataPartsVector getVisibleDataPartsVectorInPartition(MergeTreeTransaction * txn, const String & partition_id, DataPartsLock * acquired_lock = nullptr) const;

7
src/Storages/MergeTree/MergeTreePartsMover.cpp
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@ -263,7 +263,10 @@ void MergeTreePartsMover::swapClonedPart(TemporaryClonedPart & cloned_part) cons
if (moves_blocker.isCancelled())
throw Exception(ErrorCodes::ABORTED, "Cancelled moving parts.");
auto active_part = data->getActiveContainingPart(cloned_part.part->name);
/// `getActiveContainingPart` and `swapActivePart` are called under the same lock
/// to prevent part becoming inactive between calls
auto part_lock = data->lockParts();
auto active_part = data->getActiveContainingPart(cloned_part.part->name, part_lock);
/// It's ok, because we don't block moving parts for merges or mutations
if (!active_part || active_part->name != cloned_part.part->name)
@ -284,7 +287,7 @@ void MergeTreePartsMover::swapClonedPart(TemporaryClonedPart & cloned_part) cons
cloned_part.part->renameTo(active_part->name, false);
/// TODO what happen if server goes down here?
data->swapActivePart(cloned_part.part);
data->swapActivePart(cloned_part.part, part_lock);
LOG_TRACE(log, "Part {} was moved to {}", cloned_part.part->name, cloned_part.part->getDataPartStorage().getFullPath());

1
tests/config/config.d/merge_tree_old_dirs_cleanup.xml
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@ -5,4 +5,5 @@
<!-- Default is 60 seconds, but let's make tests more aggressive -->
<merge_tree_clear_old_temporary_directories_interval_seconds>5</merge_tree_clear_old_temporary_directories_interval_seconds>
</merge_tree>
<allow_remove_stale_moving_parts>true</allow_remove_stale_moving_parts>
</clickhouse>