Commit Graph

456 Commits

Author SHA1 Message Date
Anton Popov
d8b6f15ef4
Merge pull request #23027 from azat/distributed-push-down-limit
Add ability to push down LIMIT for distributed queries
2021-06-20 23:08:50 +03:00
Maksim Kita
67e9b85951 Merge ext into common 2021-06-16 23:28:41 +03:00
alexey-milovidov
34d12063f8
Merge pull request #23349 from azat/dist-respect-insert_allow_materialized_columns
Respect insert_allow_materialized_columns for INSERT into Distributed()
2021-06-14 07:23:00 +03:00
Nikita Mikhaylov
82b8d45cd7
Merge pull request #23518 from nikitamikhaylov/copier-stuck
Bugfixes and improvements of `clickhouse-copier`
2021-06-09 11:36:42 +03:00
Azat Khuzhin
18e8f0eb5e Add ability to push down LIMIT for distributed queries
This way the remote nodes will not need to send all the rows, so this
will decrease network io and also this will make queries w/
optimize_aggregation_in_order=1/LIMIT X and w/o ORDER BY faster since it
initiator will not need to read all the rows, only first X (but note
that for this you need to your data to be sharded correctly or you may
get inaccurate results).

Note, that having lots of processing stages will increase the complexity
of interpreter (it is already not that clean and simple right now).

Although using separate QueryProcessingStage looks pretty natural.

Another option is to make WithMergeableStateAfterAggregation always, but
in this case you will not be able to disable only this optimization,
i.e. if there will be some issue with it.

v2: fix OFFSET
v3: convert 01814_distributed_push_down_limit test to .sh and add retries
v4: add test with OFFSET
v5: add new query stage into the bash completion
v6/tests: use LIMIT O,L syntax over LIMIT L OFFSET O since it is broken in ANTLR parser
          https://clickhouse-test-reports.s3.yandex.net/23027/a18a06399b7aeacba7c50b5d1e981ada5df19745/functional_stateless_tests_(antlr_debug).html#fail1
v7/tests: set use_hedged_requests to 0, to avoid excessive log entries on retries
          https://clickhouse-test-reports.s3.yandex.net/23027/a18a06399b7aeacba7c50b5d1e981ada5df19745/functional_stateless_tests_flaky_check_(address).html#fail1
2021-06-09 02:29:50 +03:00
Amos Bird
78fca8f8fa
Fix possible race condition when getting cluster 2021-06-04 21:09:59 +08:00
Nikita Mikhaylov
312bb96eeb Merge branch 'master' of github.com:ClickHouse/ClickHouse into copier-stuck 2021-06-02 01:04:47 +03:00
Nikita Mikhaylov
6d19dea761 better 2021-05-31 17:38:20 +03:00
Nikita Mikhaylov
90ab394769 better 2021-05-31 17:37:10 +03:00
kssenii
3dee003f9b Merge branch 'master' of github.com:ClickHouse/ClickHouse into poco-file-to-std-fs 2021-05-20 19:20:09 +03:00
Azat Khuzhin
4d737a5481 Respect insert_allow_materialized_columns for INSERT into Distributed() 2021-05-20 07:40:46 +03:00
Alexander Kuzmenkov
e9b69bbd70
Merge pull request #23906 from azat/fix-distributed_group_by_no_merge
distributed_group_by_no_merge fixes
2021-05-19 16:16:08 +03:00
Alexander Kuzmenkov
09cb467812
Update StorageDistributed.cpp 2021-05-19 16:14:33 +03:00
kssenii
9b8df78fdd Merge branch 'master' of github.com:ClickHouse/ClickHouse into poco-file-to-std-fs 2021-05-17 17:42:05 +03:00
feng lv
c6f8ab9826 fix 2021-05-13 02:05:53 +00:00
kssenii
0527f0ea33 Merge branch 'master' of github.com:ClickHouse/ClickHouse into poco-file-to-std-fs 2021-05-12 16:54:18 +03:00
Amos Bird
cd6414639e
add metadata_snapshot to getQueryProcessingStage 2021-05-11 18:12:26 +08:00
Azat Khuzhin
eefd67fce5 Disable optimize_distributed_group_by_sharding_key with window functions 2021-05-06 00:44:22 +03:00
feng lv
39f68bf5ff fix conflict 2021-05-02 16:33:45 +00:00
kssenii
ee06936596 Merge branch 'master' of github.com:ClickHouse/ClickHouse into poco-file-to-std-fs 2021-05-01 17:24:31 +03:00
feng lv
aed2f337e9 Fix CLEAR COLUMN does not work after #21303 2021-04-30 05:02:32 +00:00
kssenii
deb4903af8 Merge branch 'master' of github.com:ClickHouse/ClickHouse into poco-file-to-std-fs 2021-04-28 20:57:13 +03:00
kssenii
eeb71672a0 Change in Storages/* 2021-04-27 16:49:37 +03:00
feng lv
4ffe199d39 Implement table comments 2021-04-23 12:18:23 +00:00
Amos Bird
096d76627e
Skip unavaiable shards when writing to distributed tables 2021-04-21 10:30:40 +08:00
Maksim Kita
e361f5943f
Merge pull request #22999 from azat/no-optimize_skip_unused_shards-single-node
Do not perform optimize_skip_unused_shards for cluster with one node
2021-04-15 14:36:56 +03:00
Nikita Mikhaylov
7a68820342 style 2021-04-13 22:39:42 +03:00
Nikita Mikhaylov
081ea84a41 save 2021-04-13 22:39:41 +03:00
tavplubix
1525e38a3c
Merge pull request #22990 from ClickHouse/tavplubix-patch-1
Fix excessive warning in StorageDistributed with cross-replication
2021-04-13 18:58:12 +03:00
Azat Khuzhin
a497d4d462 Do not perform optimize_skip_unused_shards for cluster with one node 2021-04-12 22:18:31 +03:00
tavplubix
a995962e6a
Update StorageDistributed.cpp 2021-04-12 14:58:24 +03:00
Azat Khuzhin
79bd8d4d3f Respect optimize_skip_unused_shards_rewrite_in with optimize_skip_unused_shards_limit 2021-04-12 10:37:28 +03:00
Azat Khuzhin
e439914d38 Fix optimized cluster logic for optimize_skip_unused_shards 2021-04-12 10:37:28 +03:00
Azat Khuzhin
fbb386dca5 Rewrite IN in query for remote shards to exclude values that does not belongs to shard
v2: fix optimize_skip_unused_shards_rewrite_in for sharding_key wrapped into function
v3: fix column name for optimize_skip_unused_shards_rewrite_in
v4: fix optimize_skip_unused_shards_rewrite_in with Null
v5:
- squash with Remove query argument for IStreamFactory::createForShard()
- use proper column after function execution (using sharding_key_column_name)
- update the test reference since (X) now is tuple(X)
2021-04-12 10:37:28 +03:00
Ivan
495c6e03aa
Replace all Context references with std::weak_ptr (#22297)
* Replace all Context references with std::weak_ptr

* Fix shared context captured by value

* Fix build

* Fix Context with named sessions

* Fix copy context

* Fix gcc build

* Merge with master and fix build

* Fix gcc-9 build
2021-04-11 02:33:54 +03:00
Nikolai Kochetov
6102652c99 Merge branch 'master' into better-filter-push-down 2021-04-06 13:38:03 +03:00
Maxim Akhmedov
725fa17961 Introduce IStorage::distributedWrite method for distributed INSERT SELECT. 2021-04-05 02:14:27 +03:00
Nikolai Kochetov
c3c393a7aa Merge branch 'master' into refactor-actions-dag 2021-03-18 14:33:07 +03:00
Nikolai Kochetov
e8d7349c79
Merge branch 'master' into dist-query-zero-shards-fix 2021-03-16 12:00:08 +03:00
Azat Khuzhin
61d40c3600 Fix optimize_skip_unused_shards for zero shards case
v2: move check to the beginning of the StorageDistributed::read()
2021-03-10 09:05:14 +03:00
Azat Khuzhin
3474ea044e Avoid processing optimize_skip_unused_shards twice 2021-03-09 10:05:56 +03:00
Azat Khuzhin
ed09897eb1 Pass optimize_skip_unused_shards_limit to the bottom layer
And now optimize_skip_unused_shards_limit=0 is not a special case
anymore.
2021-03-08 10:05:56 +03:00
Azat Khuzhin
16f4c02d42 Add optimize_skip_unused_shards_limit
Limit for number of sharding key values, turns off
optimize_skip_unused_shards if the limit is reached
2021-03-26 06:09:00 +03:00
Nikolai Kochetov
a669f7d641 Merge branch 'master' into refactor-actions-dag 2021-03-05 18:21:14 +03:00
Nikolai Kochetov
9a39459888 Refactor ActionsDAG 2021-03-04 20:38:12 +03:00
Azat Khuzhin
6965ac26c3 Distributed: Add ability to delay/throttle INSERT until pending data will be reduced
Add two new settings for the Distributed engine:
- bytes_to_delay_insert
- max_delay_to_insert

If at the beginning of INSERT there will be too much pending data, more
then bytes_to_delay_insert, then the INSERT will wait until it will be
shrinked, and not more then max_delay_to_insert seconds.

If after this there will be still too much pending, it will throw an
exception.

Also new profile events were added (by analogy to the MergeTree):
- DistributedDelayedInserts (although you can use system.errors instead
  of this, but still)
- DistributedRejectedInserts
- DistributedDelayedInsertsMilliseconds
2021-03-03 23:30:23 +03:00
Azat Khuzhin
b43046ba06 Distributed: More accurate distribution_queue counters
So now system.distribution_queue will show accurate statistics, so tests
does not requires sleep anymore.

But note that with too much distributed pending this will iterate over
all directories.
2021-03-03 23:30:03 +03:00
Azat Khuzhin
b5a5778589 Distributed: Add ability to limit amount of pending bytes for async INSERT
Right now with distributed_directory_monitor_batch_inserts=1 and
insert_distributed_sync=0 INSERT into Distributed table will store
blocks that should be sent to remote (and in case of
prefer_localhost_replica=0 to the localhost too) on the local
filesystem, and sent it in background.

However there is no limit for this storage, and if the remote is
unavailable (or some other error), these pending blocks may take
significant space, and this is not always desired behaviour.

Add new Distributed setting - bytes_to_throw_insert, that will set the
limit for how much pending bytes is allowed, if the limit will be
reached an exception will be throw.

By default was set to 0, to avoid surprises.
2021-03-03 23:30:00 +03:00
Azat Khuzhin
ce09b7ff89 Distributed: Implement totalBytes() (system.tables.total_bytes) 2021-03-03 23:29:11 +03:00
Anton Popov
a4c00ab5dc
Merge pull request #21303 from ucasFL/forbid
Forbid to drop a column if it's referenced by materialized view
2021-03-03 02:55:06 +03:00
feng lv
a26c9e64a9 fix
fix
2021-03-02 03:20:03 +00:00
feng lv
51021c1164 forbid to drop a column if it's referenced by materialized view 2021-02-28 05:24:39 +00:00
Nikolai Kochetov
d328bfa41f Review fixes. Add setting max_optimizations_to_apply. 2021-02-26 19:29:56 +03:00
Azat Khuzhin
809fa7e4cc Sync SYSTEM FLUSH DISTRIBUTED with TRUNCATE 2021-02-10 23:10:37 +03:00
Azat Khuzhin
ce91c257b2 Lockless SYSTEM FLUSH DISTRIBUTED
Right now SYSTEM FLUSH DISTRIBUTED will block:
- INSERT into this Distributed table (requireDirectoryMonitor())
- SELECT * FROM system.distribution_queue
2021-02-08 22:07:30 +03:00
Kruglov Pavel
d94e8624d7
Merge branch 'master' into shard-id 2021-02-06 16:48:17 +03:00
Aleksei Semiglazov
921518db0a CLICKHOUSE-606: query deduplication based on parts' UUID
* add the query data deduplication excluding duplicated parts in MergeTree family engines.

query deduplication is based on parts' UUID which should be enabled first with merge_tree setting
assign_part_uuids=1

allow_experimental_query_deduplication setting is to enable part deduplication, default ot false.

data part UUID is a mechanism of giving a data part a unique identifier.
Having UUID and deduplication mechanism provides a potential of moving parts
between shards preserving data consistency on a read path:
duplicated UUIDs will cause root executor to retry query against on of the replica explicitly
asking to exclude encountered duplicated fingerprints during a distributed query execution.

NOTE: this implementation don't provide any knobs to lock part and hence its UUID. Any mutations/merge will
update part's UUID.

* add _part_uuid virtual column, allowing to use UUIDs in predicates.

Signed-off-by: Aleksei Semiglazov <asemiglazov@cloudflare.com>

address comments
2021-02-02 16:53:39 +00:00
feng lv
4279c7da41 add setting insert_shard_id
add test

fix style

fix
2021-02-02 04:26:59 +00:00
kreuzerkrieg
29a2ef3089 Add IStoragePolicy interface 2021-01-26 10:55:28 +02:00
Azat Khuzhin
2e55bd2285 Accept IDisk in DirectoryMonitor (for further fsync) 2021-01-09 16:31:42 +03:00
Azat Khuzhin
b5ace27014 Add fsync support for Distributed engine.
Two new settings (by analogy with MergeTree family) has been added:

- `fsync_after_insert` - Do fsync for every inserted. Will decreases
  performance of inserts.

- `fsync_tmp_directory` - Do fsync for temporary directory (that is used
  for async INSERT only) after all part operations (writes, renames,
  etc.).

Refs: #17380 (p1)
2021-01-09 11:31:32 +03:00
Azat Khuzhin
714d5a067a Expose supports_parallel_insert via system.table_engines 2021-01-08 14:57:24 +03:00
Alexey Milovidov
190402b7d5 Do not insert empty blocks on sync Distributed INSERT 2021-01-06 02:54:22 +03:00
Amos Bird
6fc225e676
Distributed insertion to one random shard (#18294)
* Distributed insertion to one random shard

* add some tests

* add some documentation

* Respect shards' weights

* fine locking

Co-authored-by: Ivan Lezhankin <ilezhankin@yandex-team.ru>
2020-12-23 19:04:05 +03:00
Azat Khuzhin
5365718f01
Fix optimize_distributed_group_by_sharding_key for query with OFFSET only (#16996)
* Fix optimize_distributed_group_by_sharding_key for query with OFFSET only

* Fix 01244_optimize_distributed_group_by_sharding_key flakiness
2020-12-02 20:11:39 +03:00
tavplubix
085359c110
Merge pull request #17274 from ClickHouse/fix_ast_formatting_in_logs
Fix AST formatting in log messages
2020-11-24 19:00:56 +03:00
Alexander Tokmakov
60a5782c75 fix AST formatting in log messages 2020-11-22 20:23:12 +03:00
Amos Bird
1d9d586e20
Make global_context consistent. 2020-11-20 18:23:14 +08:00
Nikolai Kochetov
46f70dd0de Merge branch 'master' into actions-dag-f14 2020-11-12 11:54:44 +03:00
tavplubix
058aa8f85e
Merge pull request #16824 from ClickHouse/replace_stringstreams_with_buffers
Replace std::*stringstreams with DB::*Buffers
2020-11-12 01:11:44 +03:00
Nikolai Kochetov
1846bb3cac Merge branch 'master' into actions-dag-f14 2020-11-11 13:08:57 +03:00
Nikolai Kochetov
1db8e77371 Add comments. Update ActionsDAG::Index 2020-11-10 17:54:59 +03:00
Nikolai Kochetov
195c941c4e Merge branch 'master' into storage-read-query-plan 2020-11-10 15:02:22 +03:00
Alexander Tokmakov
5cdfcfb307 remove other stringstreams 2020-11-09 22:12:44 +03:00
Nikolai Kochetov
6717c7a0af Merge branch 'master' into actions-dag-f14 2020-11-09 14:57:48 +03:00
alexey-milovidov
f4ba5f1f9a
Merge pull request #16772 from ClickHouse/fix-stringstream
Fix "server failed to start" error
2020-11-08 14:27:08 +03:00
Alexey Milovidov
ba4ae00121 Whitespace 2020-11-08 00:30:40 +03:00
Alexey Milovidov
1ea3afadbc Merge with master 2020-11-08 00:28:39 +03:00
Alexey Milovidov
5314185e25 Merge branch 'master' into azat-optimize_skip_unused_shards-optimization 2020-11-08 00:17:59 +03:00
Alexey Milovidov
fd84d16387 Fix "server failed to start" error 2020-11-07 03:14:53 +03:00
Nikolai Kochetov
c10f733587 Merge branch 'master' into storage-read-query-plan 2020-11-06 15:43:46 +03:00
Nikolai Kochetov
9aeb757da4 Merge branch 'master' into actions-dag-f14 2020-11-06 15:04:20 +03:00
Azat Khuzhin
f23995d290 Remove empty directories for async INSERT at start of Distributed engine
Will be created by DistributedBlockOutputStream on demand.
2020-11-05 23:50:30 +03:00
Nikolai Kochetov
6767a226fc Merge branch 'master' into actions-dag-f14 2020-11-03 15:21:06 +03:00
Nikolai Kochetov
07a7c46b89 Refactor ExpressionActions [Part 3] 2020-11-03 14:28:28 +03:00
Azat Khuzhin
fc14fde24a Fix DROP TABLE for Distributed (racy with INSERT)
<details>

```

drop() on T1275:

    0  DB::StorageDistributed::drop (this=0x7f9ed34f0000) at ../contrib/libcxx/include/__hash_table:966
    1  0x000000000d557242 in DB::DatabaseOnDisk::dropTable (this=0x7f9fc22706d8, context=..., table_name=...)
       at ../contrib/libcxx/include/new:340
    2  0x000000000d6fcf7c in DB::InterpreterDropQuery::executeToTable (this=this@entry=0x7f9e42560dc0, query=...)
       at ../contrib/libcxx/include/memory:3826
    3  0x000000000d6ff5ee in DB::InterpreterDropQuery::execute (this=0x7f9e42560dc0) at ../src/Interpreters/InterpreterDropQuery.cpp:50
    4  0x000000000daa40c0 in DB::executeQueryImpl (begin=<optimized out>, end=<optimized out>, context=..., internal=<optimized out>,
       stage=DB::QueryProcessingStage::Complete, has_query_tail=false, istr=0x0) at ../src/Interpreters/executeQuery.cpp:420
    5  0x000000000daa59df in DB::executeQuery (query=..., context=..., internal=internal@entry=false, stage=<optimized out>,
       may_have_embedded_data=<optimized out>) at ../contrib/libcxx/include/string:1487
    6  0x000000000e1369e6 in DB::TCPHandler::runImpl (this=this@entry=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:254
    7  0x000000000e1379c9 in DB::TCPHandler::run (this=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:1326
    8  0x000000001086fac7 in Poco::Net::TCPServerConnection::start (this=this@entry=0x7f9ddf3a9000)
       at ../contrib/poco/Net/src/TCPServerConnection.cpp:43
    9  0x000000001086ff2b in Poco::Net::TCPServerDispatcher::run (this=0x7f9e4eba5c00)
       at ../contrib/poco/Net/src/TCPServerDispatcher.cpp:114
    10 0x00000000109dbe8e in Poco::PooledThread::run (this=0x7f9e4a2d2f80) at ../contrib/poco/Foundation/src/ThreadPool.cpp:199
    11 0x00000000109d78f9 in Poco::ThreadImpl::runnableEntry (pThread=<optimized out>)
       at ../contrib/poco/Foundation/include/Poco/SharedPtr.h:401
    12 0x00007f9fc3cccea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
    13 0x00007f9fc3bebeaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

StorageDistributedDirectoryMonitor on T166:

    0  DB::StorageDistributedDirectoryMonitor::StorageDistributedDirectoryMonitor (this=0x7f9ea7ab1400, storage_=..., path_=...,
       pool_=..., monitor_blocker_=..., bg_pool_=...) at ../src/Storages/Distributed/DirectoryMonitor.cpp:81
    1  0x000000000dbf684e in std::__1::make_unique<> () at ../contrib/libcxx/include/memory:3474
    2  DB::StorageDistributed::requireDirectoryMonitor (this=0x7f9ed34f0000, disk=..., name=...)
       at ../src/Storages/StorageDistributed.cpp:682
    3  0x000000000de3d5fa in DB::DistributedBlockOutputStream::writeToShard (this=this@entry=0x7f9ed39c7418, block=..., dir_names=...)
       at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:634
    4  0x000000000de3e214 in DB::DistributedBlockOutputStream::writeAsyncImpl (this=this@entry=0x7f9ed39c7418, block=...,
       shard_id=shard_id@entry=79) at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:539
    5  0x000000000de3e47b in DB::DistributedBlockOutputStream::writeSplitAsync (this=this@entry=0x7f9ed39c7418, block=...)
       at ../contrib/libcxx/include/vector:1546
    6  0x000000000de3eab0 in DB::DistributedBlockOutputStream::writeAsync (block=..., this=0x7f9ed39c7418)
       at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:141
    7  DB::DistributedBlockOutputStream::write (this=0x7f9ed39c7418, block=...)
       at ../src/Storages/Distributed/DistributedBlockOutputStream.cpp:135
    8  0x000000000d73b376 in DB::PushingToViewsBlockOutputStream::write (this=this@entry=0x7f9ea7a8cf58, block=...)
       at ../src/DataStreams/PushingToViewsBlockOutputStream.cpp:157
    9  0x000000000d7853eb in DB::AddingDefaultBlockOutputStream::write (this=0x7f9ed383d118, block=...)
       at ../contrib/libcxx/include/memory:3826
    10 0x000000000d740790 in DB::SquashingBlockOutputStream::write (this=0x7f9ed383de18, block=...)
       at ../contrib/libcxx/include/memory:3826
    11 0x000000000d68c308 in DB::CountingBlockOutputStream::write (this=0x7f9ea7ac6d60, block=...)
       at ../contrib/libcxx/include/memory:3826
    12 0x000000000ddab449 in DB::StorageBuffer::writeBlockToDestination (this=this@entry=0x7f9fbd56a000, block=..., table=...)
       at ../src/Storages/StorageBuffer.cpp:747
    13 0x000000000ddabfa6 in DB::StorageBuffer::flushBuffer (this=this@entry=0x7f9fbd56a000, buffer=...,
       check_thresholds=check_thresholds@entry=true, locked=locked@entry=false, reset_block_structure=reset_block_structure@entry=false)
       at ../src/Storages/StorageBuffer.cpp:661
    14 0x000000000ddac415 in DB::StorageBuffer::flushAllBuffers (reset_blocks_structure=false, check_thresholds=true, this=0x7f9fbd56a000)
        at ../src/Storages/StorageBuffer.cpp:605

shutdown() on T1275:

    0  DB::StorageDistributed::shutdown (this=0x7f9ed34f0000) at ../contrib/libcxx/include/atomic:1612
    1  0x000000000d6fd938 in DB::InterpreterDropQuery::executeToTable (this=this@entry=0x7f98530c79a0, query=...)
       at ../src/Storages/TableLockHolder.h:12
    2  0x000000000d6ff5ee in DB::InterpreterDropQuery::execute (this=0x7f98530c79a0) at ../src/Interpreters/InterpreterDropQuery.cpp:50
    3  0x000000000daa40c0 in DB::executeQueryImpl (begin=<optimized out>, end=<optimized out>, context=..., internal=<optimized out>,
       stage=DB::QueryProcessingStage::Complete, has_query_tail=false, istr=0x0) at ../src/Interpreters/executeQuery.cpp:420
    4  0x000000000daa59df in DB::executeQuery (query=..., context=..., internal=internal@entry=false, stage=<optimized out>,
       may_have_embedded_data=<optimized out>) at ../contrib/libcxx/include/string:1487
    5  0x000000000e1369e6 in DB::TCPHandler::runImpl (this=this@entry=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:254
    6  0x000000000e1379c9 in DB::TCPHandler::run (this=0x7f9ddf3a9000) at ../src/Server/TCPHandler.cpp:1326
    7  0x000000001086fac7 in Poco::Net::TCPServerConnection::start (this=this@entry=0x7f9ddf3a9000)
       at ../contrib/poco/Net/src/TCPServerConnection.cpp:43
    8  0x000000001086ff2b in Poco::Net::TCPServerDispatcher::run (this=0x7f9e4eba5c00)
       at ../contrib/poco/Net/src/TCPServerDispatcher.cpp:114
    9  0x00000000109dbe8e in Poco::PooledThread::run (this=0x7f9e4a2d2f80) at ../contrib/poco/Foundation/src/ThreadPool.cpp:199
    10 0x00000000109d78f9 in Poco::ThreadImpl::runnableEntry (pThread=<optimized out>)
       at ../contrib/poco/Foundation/include/Poco/SharedPtr.h:401
    11 0x00007f9fc3cccea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
    12 0x00007f9fc3bebeaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

```

</details>
2020-10-27 21:19:36 +03:00
Ivan
1d170f5745
ASTTableIdentifier Part #1: improve internal representation of ASTIdentifier name (#16149)
* Use only |name_parts| as primary name source

* Restore legacy logic for table restoration

* Fix build

* Fix tests

* Add pytest server config

* Fix tests

* Fixes due to review
2020-10-24 21:46:10 +03:00
Nikolai Kochetov
7fa045cff8 Merge branch 'master' into storage-read-query-plan 2020-10-22 13:31:10 +03:00
Azat Khuzhin
9b8abd44ab Add allow_nondeterministic_optimize_skip_unused_shards 2020-10-17 01:07:02 +03:00
Alexander Tokmakov
72b1339656 Revert "Revert "Write structure of table functions to metadata""
This reverts commit c65d1e5c70.
2020-10-14 15:19:29 +03:00
tavplubix
c65d1e5c70
Revert "Write structure of table functions to metadata" 2020-10-14 13:59:29 +03:00
alexey-milovidov
f60ccb4edf
Merge pull request #14295 from ClickHouse/write_structure_of_table_functions
Write structure of table functions to metadata
2020-10-13 23:56:09 +03:00
Nikolai Kochetov
7e58f99f64 Merge branch 'master' into storage-read-query-plan 2020-10-12 13:12:39 +03:00
Alexey Milovidov
5b482f4191 Cleanups 2020-10-10 19:31:10 +03:00
Nikolai Kochetov
c5cb05f5f3 Try fix tests. 2020-10-07 14:26:29 +03:00
Azat Khuzhin
b838214a35 Pass non-const SelectQueryInfo (and drop mutable qualifiers) 2020-10-02 22:42:35 +03:00
Azat Khuzhin
587cde853e Avoid skipping unused shards twice (for query processing stage and read itself) 2020-10-02 22:42:09 +03:00
Nikolai Kochetov
576ffadb17 Fix explain for ISourceStep. 2020-09-30 15:22:30 +03:00
Alexander Tokmakov
b0d99217fb Merge branch 'master' into write_structure_of_table_functions 2020-09-27 14:26:47 +03:00
Nikolai Kochetov
dea90009e3 Fix build 2020-09-25 16:03:12 +03:00
Alexey Milovidov
24b334258b Resolve review comment 2020-09-18 22:25:56 +03:00
Alexey Milovidov
e1ffa07a39 Resolve review comments 2020-09-18 22:08:53 +03:00
Alexander Tokmakov
1ca9a92b21 Merge branch 'master' into write_structure_of_table_functions 2020-09-18 21:09:23 +03:00
Nikolai Kochetov
b26f11c00c Support StorageDistributed::read for QueryPlan. 2020-09-18 17:16:53 +03:00
Alexey Milovidov
7fb4dfea2c Small improvements for IStorage::rename 2020-09-17 22:50:43 +03:00
alexey-milovidov
84eece69ba
Merge pull request #14876 from amosbird/ns
Get rid of query settings after initialization.
2020-09-17 17:49:25 +03:00
Amos Bird
96a202c0fb
Get rid of query settings after initialization. 2020-09-16 22:35:39 +08:00
Pavel Kovalenko
01ab28a182 Don't throw exception if Distributed storage has multi-volume storage policy configuration. 2020-09-15 12:26:56 +03:00
Alexander Tokmakov
b840d741d0 Merge branch 'master' into write_structure_of_table_functions 2020-09-04 13:00:07 +03:00
alexey-milovidov
edea940e17
Update StorageDistributed.cpp 2020-09-03 04:39:36 +03:00
Azat Khuzhin
fffeeeba06 Force WithMergeableStateAfterAggregation via distributed_group_by_no_merge (convert to UInt64)
Possible values:
- 1 - Do not merge aggregation states from different servers for distributed query processing - in case it is for certain that there are different keys on different shards.
- 2 - same as 1 but also apply ORDER BY and LIMIT stages
2020-09-03 00:52:51 +03:00
Azat Khuzhin
10b4f3b41f Optimize queries with LIMIT/LIMIT BY/ORDER BY for distributed with GROUP BY sharding_key
Previous set of QueryProcessingStage does not allow to do this.
But after WithMergeableStateAfterAggregation had been introduced the
following queries can be optimized too under
optimize_distributed_group_by_sharding_key:
- GROUP BY sharding_key LIMIT
- GROUP BY sharding_key LIMIT BY
- GROUP BY sharding_key ORDER BY

And right now it is still not supports:
- WITH TOTALS (looks like it can be supported)
- WITH ROLLUP (looks like it can be supported)
- WITH CUBE
- SETTINGS extremes=1 (looks like it can be supported)
But will be implemented separatelly.

vX: fixes
v2: fix WITH *
v3: fix extremes
v4: fix LIMIT OFFSET (and make a little bit cleaner)
v5: fix HAVING
v6: fix ORDER BY
v7: rebase against 20.7
v8: move out WithMergeableStateAfterAggregation
v9: add optimize_distributed_group_by_sharding_key into test names
2020-09-03 00:52:51 +03:00
Alexander Tokmakov
969940b4c9 write table tructure for table function remote(...) 2020-08-26 23:55:40 +03:00
Nikolai Kochetov
2cca4d5fcf Refactor Pipe [part 2]. 2020-08-03 16:54:14 +03:00
Vladimir Chebotarev
faedb04722 Minor fixes. 2020-07-28 19:45:46 +03:00
Vladimir Chebotarev
1b3f5c99f5 Real fix of test. 2020-07-26 21:27:36 +03:00
Vladimir Chebotarev
f5af64514f Test fix (removed redundant code). 2020-07-26 21:27:36 +03:00
Vladimir Chebotarev
8039d45910 Minor fix in StorageDistributed. 2020-07-26 21:27:36 +03:00
Gleb Novikov
7f5b6fba78 Generic volume is coming...
1. SingleDiskVolume for temporary volumes
2. Generic VolumePtr in StoragePolicies
3. Removed max_data_part_size in system.storage_policies, added volume_type
2020-07-26 21:27:36 +03:00
Artem Zuikov
2afd123eda
Refactoring: extract TreeOptimizer from SyntaxAnalyzer (#12645) 2020-07-22 20:13:05 +03:00
Azat Khuzhin
6ea1b19476 Remove data for Distributed tables (blocks from async INSERTs) on DROP TABLE 2020-07-17 08:59:57 +03:00
Azat Khuzhin
9c94993f14 Fix "Sharding key is not deterministic" message 2020-06-29 23:00:14 +03:00
alexey-milovidov
18eb141ea1
Merge pull request #11715 from azat/dist-optimize_skip_unused_shards-fixes
Control nesting level for shards skipping and disallow non-deterministic functions
2020-06-24 12:54:58 +03:00
alesapin
c9fa5d2ec3 Better naming 2020-06-19 18:39:41 +03:00
Azat Khuzhin
d34e6217bc Add logging of adjusting conditional settings for distributed queries 2020-06-18 21:49:29 +03:00
Azat Khuzhin
041533eae2 Disable optimize_skip_unused_shards if sharding_key has non-deterministic func
Example of such functions is rand()

And this patch disables only optimize_skip_unused_shards, i.e. INSERT
code path does not changed, so it will work as before.
2020-06-18 21:49:29 +03:00
alesapin
d79982f497 Better locks in Storages 2020-06-18 19:10:47 +03:00
alesapin
aab4ce6394 Truncate with metadata 2020-06-18 13:29:13 +03:00
alesapin
760e9a8488 Fix crash 2020-06-18 12:08:24 +03:00
alesapin
ebb36bec8a Merge branch 'master' into atomic_metadata5 2020-06-18 11:57:16 +03:00
alesapin
dffdece350 getColumns in StorageInMemoryMetadta (only compilable) 2020-06-17 19:39:58 +03:00
alesapin
ef8781cce7 Better getVirtuals method 2020-06-17 17:37:21 +03:00
Nikita Mikhaylov
ff0262626a
Merge pull request #11645 from azat/load-balancing-round-robin
Add round_robin load_balancing
2020-06-17 14:34:59 +04:00
alesapin
1ddeb3d149 Buildable getSampleBlock in StorageInMemoryMetadata 2020-06-16 18:51:29 +03:00
alesapin
53cb5210de Move getSampleBlockNonMaterialized to StorageInMemoryMetadata 2020-06-16 15:48:10 +03:00
alesapin
36ba0192df Metadata in read and write methods of IStorage 2020-06-15 22:08:58 +03:00
alesapin
af2fe2ba55 Compilable setColumns, setConstraints, setIndices 2020-06-15 19:55:33 +03:00
Azat Khuzhin
c139a05370 Forward declaration in StorageDistributed 2020-06-14 01:09:21 +03:00
alesapin
8be957ecb5 Better checks around metadata 2020-06-10 14:16:31 +03:00
alesapin
d2fcf5aea5 Fixes for gcc 2020-06-09 20:28:29 +03:00
alexey-milovidov
82e849e6a1
Update StorageDistributed.cpp 2020-06-06 18:57:52 +03:00
Azat Khuzhin
ff85125326 Fix readability-qualified-auto 2020-06-04 20:23:46 +03:00
Azat Khuzhin
86c5465bf8 Rewrite StorageSystemDistributionQueue interfaces 2020-06-04 03:04:32 +03:00
Azat Khuzhin
389f78ceee Add system.distribution_queue
system.distribution_queue contains the following columns:
- database
- table
- data_path
- is_blocked
- error_count
- data_files
- data_compressed_bytes
2020-06-04 02:36:16 +03:00
Azat Khuzhin
60d10f1bac Fix typo in StorageDistributed 2020-06-04 02:36:16 +03:00
alesapin
3847ea892d Merge branch 'master' into consistent_metadata3 2020-06-01 13:17:59 +03:00
Alexey Milovidov
25f941020b Remove namespace pollution 2020-05-31 00:57:37 +03:00
alesapin
52ca6b2051 I'm able to build it 2020-05-28 15:37:05 +03:00
Alexey Milovidov
7e1813825b Return old names of macros 2020-05-24 01:24:01 +03:00
Alexey Milovidov
85f84550ba Progress on task 2020-05-23 23:37:37 +03:00
Alexey Milovidov
9d2a0d2dd7 Apply all transformations again 2020-05-23 21:59:49 +03:00
Alexey Milovidov
a2ad11897f Remove duplicate whitespaces (preparation) 2020-05-23 21:53:58 +03:00
Alexey Milovidov
1f13515a65 Make all LOG in single line (preparation) 2020-05-23 21:31:37 +03:00
Alexey Milovidov
e391b77d81 find {base,src,programs} -name '*.h' -or -name '*.cpp' | xargs grep -l -P 'LOG_\w+\([^,]+, "[^"]+" << [^<]+ << "[^"]+"\);' | xargs sed -i -r -e 's/(LOG_\w+)\(([^,]+), "([^"]+)" << ([^<]+) << "([^"]+)"\);/\1_FORMATTED(\2, "\3{}\5", \4);/' 2020-05-23 19:56:05 +03:00
Alexey Milovidov
ee4ffbc332 find {base,src,programs} -name '*.h' -or -name '*.cpp' | xargs grep -l -P 'LOG_\w+\([^,]+, "[^"]+" << [^<]+\);' | xargs sed -i -r -e 's/(LOG_\w+)\(([^,]+), "([^"]+)" << ([^<]+)\);/\1_FORMATTED(\2, "\3{}", \4);/' 2020-05-23 19:47:56 +03:00
Alexey Milovidov
8d2e80a5e2 find {base,src,programs} -name '*.h' -or -name '*.cpp' | xargs grep -l -P 'LOG_\w+\([^,]+, "[^"]+"\)' | xargs sed -i -r -e 's/(LOG_\w+)\(([^,]+, "[^"]+")\)/\1_FORMATTED(\2)/' 2020-05-23 19:42:39 +03:00
Azat Khuzhin
bc4b75dead Add table name into logs for StorageDistributed 2020-05-23 11:57:14 +03:00
alesapin
59b3bc0c05
Merge branch 'master' into fix_deadlock_system_logs_startup 2020-05-21 22:57:52 +03:00
alesapin
c036af0261 Fix deadlock after clickhouse-server update (with changes in one of system log tables structure) during startup between concurrent merge and table rename. 2020-05-21 17:11:56 +03:00
Azat Khuzhin
d93b9a57f6 Forward declaration for Context as much as possible.
Now after changing Context.h 488 modules will be recompiled instead of 582.
2020-05-21 01:53:18 +03:00
Gleb Novikov
1a25ac6e1f Merge branch 'master' into refactor-reservations 2020-05-16 23:34:45 +03:00
alesapin
352c402cf2 Merge branch 'add_alter_rename_column_to_distributed' of https://github.com/vzakaznikov/ClickHouse into vzakaznikov-add_alter_rename_column_to_distributed 2020-05-13 14:14:23 +03:00
alexey-milovidov
33d491edf3
Merge pull request #10516 from azat/dist-GROUP_BY-sharding_key-fixes
Disable GROUP BY sharding_key optimization by default (and fix for WITH ROLLUP/CUBE/TOTALS)
2020-05-11 12:03:27 +03:00
Gleb Novikov
390b39b272 VolumePtr instead of DiskPtr in MergeTreeData* 2020-05-10 00:24:15 +03:00
Vitaliy Zakaznikov
90e52e7fea Adding support for ALTER RENAME COLUMN query to Distributed table engine. 2020-05-07 14:54:35 +02:00
Gleb Novikov
c637d99e07 Volumes and storages refactoring:
1. Moved Volume to separate file
  2. Created IVolume interface and implemented current behaviour in implementation of new interface — VolumeJBOD
  3. Replaced all old volume usages with new VolumeJBOD. Where it is unnecessary to have JBOD — left just IVolume.
  4. Removed old Volume completely
  5. Moved StoragePolicy to separated files
  6. Moved DiskSelector to separated files
  7. Removed DiskSpaceMonitor file
2020-05-04 23:15:38 +03:00
alexey-milovidov
229f666dea
Merge pull request #10611 from azat/optimize_skip_unused_shards-LowCardinality
Fix optimize_skip_unused_shards with LowCardinality
2020-05-02 22:14:33 +03:00
Azat Khuzhin
63d8ab8f03 Make createSelector() static (in storage) and const (in stream) 2020-05-01 11:31:05 +03:00
Azat Khuzhin
f22ba15b4a Reduce copy-paste of DistributedBlockOutputStream::createSelector
This will make it less error prone.
2020-05-01 02:59:40 +03:00
Azat Khuzhin
cdd7013438 Drop superfluous "Skipping irrelevant shards" messages
Before this patch it printed 3 times:
- from StorageDistributed::getProcessingStageImpl()
- from StorageDistributed::read()
- from StorageDistributed::getProcessingStageImpl() (from StorageDistributed::read() -> getSampleBlock())
(But this should be optimized)
2020-05-01 02:56:13 +03:00
Azat Khuzhin
c648c300bf Fix optimize_skip_unused_shards with LowCardinality 2020-05-01 02:39:58 +03:00
Azat Khuzhin
4cbe625567 Fix shard numbers output in logs (full cluster had been printed over optimized) 2020-05-01 02:13:07 +03:00
Azat Khuzhin
038235684d Add optimize_distributed_group_by_sharding_key and disable it by default
I know at least one way to fool that optimization, by using as sharding
key something like `if(col1>0, col1, col2)` (although this is not common
sharding key I would say, but can be useful if this will work
correctly), so let's disable it by default.
2020-04-29 00:09:25 +03:00
alesapin
f981649213 Fix pushing to views stream and refactor virtuals 2020-04-28 13:38:57 +03:00
alesapin
4badd0fd28 Better code 2020-04-27 20:46:51 +03:00
alesapin
01db4877f6 Fix style check 2020-04-27 18:44:33 +03:00
alesapin
18c550df15 Better virtuals logic 2020-04-27 16:55:30 +03:00
alesapin
2829774105 Merge branch 'master' into refactor_istorage 2020-04-27 15:34:21 +03:00
Azat Khuzhin
20b4eed9a1 Disable GROUP BY sharding_key optimization for WITH ROLLUP/CUBE/TOTALS 2020-04-27 01:30:54 +03:00
alexey-milovidov
c9334d3fde
Merge pull request #10491 from azat/dist-shutdown
Proper Distributed shutdown (fixes UAF, avoid waiting for sending all batches)
2020-04-25 23:47:59 +03:00
Azat Khuzhin
747a74215f Avoid processing all batches before Distributed shutdown 2020-04-25 02:03:27 +03:00
Azat Khuzhin
8ad6b37913 Proper StorageDistributed shutdown to avoid UAF in DistributedMonitor
StorageDistributed::shutdown() does not acquire the lock, that controls
access to the cluster_nodes_data, thus it does not synced with the
requireDirectoryMonitor(), hence some monitors can be untracked that
will trigger UAF (use-after-free) after DROP TABLE dist:

This is for the SIGSEGV from the DirectoryMonitor (with already destroyed storage):
    0  0x0000000008e9f760 in std::__1::__cxx_atomic_load<int> (__order=std::__1::memory_order::seq_cst, __a=0x0)
    1  std::__1::__atomic_base<int, false>::load (__m=std::__1::memory_order::seq_cst, this=0x0) <-- this is nullptr
    2  std::__1::__atomic_base<int, false>::operator int (this=0x0)
    3  DB::ActionBlocker::isCancelled (this=0x7f85e31c9bb8) at ../src/Common/ActionBlocker.h:18
    4  DB::StorageDistributedDirectoryMonitor::run (this=0x7f85f93b2a00) at ../src/Storages/Distributed/DirectoryMonitor.cpp:140
2020-04-25 02:03:26 +03:00
alesapin
793f4b734a Remove obsolete comment 2020-04-24 13:31:03 +03:00
alesapin
dc2dd77d2e Remove redundant overrides from IStorage 2020-04-24 12:20:09 +03:00
Alexander Tokmakov
04d6b59ac0 Merge branch 'master' into database_atomic 2020-04-23 17:31:37 +03:00
Alexey Milovidov
1e325a9fd9 Checkpoint 2020-04-22 09:22:14 +03:00
Alexander Tokmakov
b29bddac12 Merge branch 'master' into database_atomic 2020-04-20 14:09:09 +03:00
Alexey Milovidov
d7264b292d Merge branch 'master' into sorting-processors 2020-04-20 09:29:41 +03:00
alexey-milovidov
1577d771df
Merge pull request #10341 from azat/auto_distributed_group_by_no_merge
Auto distributed_group_by_no_merge on GROUP BY sharding key
2020-04-20 08:30:27 +03:00
Azat Khuzhin
e44d5c5749 Fix clang readability-container-size-empty warning in StorageDistributed::canForceGroupByNoMerge() 2020-04-20 01:12:22 +03:00
Azat Khuzhin
be1dec9239 Fix distributed_group_by_no_merge optimization for Distributed-over-Distributed 2020-04-19 21:11:14 +03:00
Azat Khuzhin
93d049fe64 Allow auto distributed_group_by_no_merge for DISTINCT of sharding key 2020-04-19 18:53:37 +03:00
Azat Khuzhin
de4a723264 Auto distributed_group_by_no_merge on GROUP BY injective function of sharding key 2020-04-19 18:33:49 +03:00
Azat Khuzhin
5d11118cc9 Use thread pool (background_distributed_schedule_pool_size) for distributed sends
After #8756 the problem with 1 thread for each (distributed table, disk)
for distributed sends became even worse (since there can be multiple
disks), so use predefined thread pool for this tasks, that can be
controlled with background_distributed_schedule_pool_size knob.
2020-04-19 12:01:56 +03:00
Nikolai Kochetov
153f795ebe Merge branch 'master' into sorting-processors 2020-04-15 12:07:05 +03:00
Alexander Tokmakov
5e6d4b9449 Merge branch 'master' into database_atomic 2020-04-12 16:35:44 +03:00
Nikolai Kochetov
71c72a75d7 Move Graphite params to separate file. 2020-04-10 12:24:16 +03:00
Alexander Kazakov
497df3086f Merge branch 'master' into timed_rwlock
Change-Id: I620bfde2121ff013773b001d514b40b1e796a58b
2020-04-10 11:38:20 +03:00
Alexander Kazakov
26dd6140b2 Added new config settings to control timeouts
* "lock_acquire_timeout" controls for how long a query will continue to
acquire each lock on its argument tables
 * "lock_acquire_timeout_for_background_operations" is a per-table
setting for storages of *MergeTree family
2020-04-09 21:10:27 +03:00
Alexander Tokmakov
dd1590830b Merge branch 'master' into database_atomic 2020-04-08 22:00:46 +03:00
alexey-milovidov
6d80ab1eed
Merge pull request #9811 from vitlibar/RBAC-8
RBAC-8
2020-04-08 05:47:55 +03:00
Vitaly Baranov
e573549945 Rework access rights for table functions. 2020-04-07 23:31:59 +03:00
Alexander Tokmakov
4c48b7dd80 better rename 2020-04-07 18:31:33 +03:00
Alexander Tokmakov
08bae4668d Merge branch 'master' into database_atomic 2020-04-06 16:18:07 +03:00
Azat Khuzhin
1232760f78 Fix Distributed-over-Distributed when nested table has only one shard 2020-04-04 13:47:35 +03:00
Ivan Lezhankin
06446b4f08 dbms/ → src/ 2020-04-03 18:14:31 +03:00