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ed70ed6f71
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785 Commits

Author SHA1 Message Date
Azat Khuzhin
ed70ed6f71 Introduce connection_no_wait setting for MySQL engine. 
This will allow to avoid superfluous sleep during query execution, since
this not only not desired behavoiur, but also may hang the server, since
if you will execute enough queries that will use MySQL database but will
not allow enough connections (or your MySQL server is too slow) then you
may run out of threads in the global thread pool.

Also note that right now it is possible to get deadlock when the mysql
pool is full, consider the following scenario:

- you have m1 and m2 mysql tables
- you have q1 and q2 queries, bot queries join m1 and m2
- q1 allocated connection for m1 but cannot allocate connection for m2
- q2 allocated connection for m2 but cannot allocate connection for m1
- but to resolve the lock one should give up on the locking while it is not possible right now...

And then you got no free threads and this:

    # grep -h ^202 /proc/$(pgrep clickhouse-serv)/task/*/syscall  | cut -d' ' -f2 | sort | uniq -c | sort -nr | head
       1554 0x7ffb60b92fe8 # mutex in mysqlxx::PoolWithFailover::get
       1375 0x7ffb9f1c4748 # mutex in ::PoolEntryHelper::~PoolEntryHelper from DB::MultiplexedConnections::invalidateReplica
       1160 0x7ffb612918b8 # mutex in mysqlxx::PoolWithFailover::get
         42 0x7ffb9f057984 # mutex in ThreadPoolImpl<std::__1::thread>::worker

    *NOTE: 202 is a `futex` with WAIT*

(Went with `syscall` because debugging 10k+ threads is not easy, and
eventually it may TRAP)
 2021-09-02 22:23:37 +03:00
Maksim Kita
e5ee3752ef BorrowedObjectPool fix style 2021-09-02 16:18:10 +03:00
tavplubix
c36fe210b8
Revert "Add test for #13398" 2021-08-27 21:07:10 +03:00
Kruglov Pavel
5bc332c40c
Merge pull request #28054 from kssenii/mysql 
Add test for #13398
 2021-08-26 16:39:43 +03:00
alexey-milovidov
c6f40c5c2d
Revert "Revert "less sys calls #2: make vdso work again"" 2021-08-25 14:19:20 +03:00
kssenii
0d5000f917 Merge branch 'master' of https://github.com/ClickHouse/ClickHouse into mysql 2021-08-24 07:30:42 +00:00
kssenii
962f415740 Add test and settings 2021-08-23 22:18:04 +00:00
Vitaly Baranov
c1177ee562 Support implicit cast std::pair<UInt64, UInt64> to UInt128. 2021-08-23 23:41:45 +03:00
Vitaly Baranov
9a5eeb5d41 Add utility function insertAtEnd(). 2021-08-23 23:41:45 +03:00
Vladimir C
bce6d092ea
Merge pull request #27858 from ianton-ru/MDB-14264 
Use Multipart copy upload for large S3 objects
 2021-08-23 11:32:19 +03:00
vdimir
e77ff2740a
Add common/unit.h 2021-08-20 13:57:05 +03:00
tavplubix
9ef45d92c2
Merge pull request #27755 from ClickHouse/ncb/server_uuid 
Merging  #20089
 2021-08-19 14:59:18 +03:00
alexey-milovidov
8f280c9ccb
Merge pull request #27829 from ClickHouse/revert-27492-less_clock_gettime2 
Revert "less sys calls #2: make vdso work again"
 2021-08-19 12:50:50 +03:00
alexey-milovidov
3db3b40b5e
Revert "less sys calls #2: make vdso work again" 2021-08-19 01:38:12 +03:00
Alexander Tokmakov
31d75c9c38 fix split build 2021-08-18 15:15:31 +03:00
Sergei Semin
da3f5612ae rename _Bits -> _bits 2021-08-17 23:08:17 +03:00
Alexander Tokmakov
df1a4e90a8 Merge branch 'master' into ncb/server_uuid 2021-08-17 19:42:47 +03:00
Alexander Tokmakov
4d71f65082 fix build 2021-08-17 16:24:14 +03:00
Alexander Tokmakov
9e9fa043ca minor improvements, add test 2021-08-16 21:30:53 +03:00
Alexey Milovidov
9a4a8d3943 Fix build with clang-13 2021-08-16 03:16:45 +03:00
Alexey Milovidov
f063e44131 Whitespaces 2021-08-15 09:00:28 +03:00
alexey-milovidov
fe356a716e
Merge pull request #27492 from filimonov/less_clock_gettime2 
less sys calls #2: make vdso work again
 2021-08-13 03:13:11 +03:00
Vitaly Baranov
213e6366c2
Update getauxval.c 2021-08-12 13:44:09 +03:00
Vitaly Baranov
3d9a4adfbf
Better handling case when __environ is null 2021-08-12 13:43:06 +03:00
Maksim Kita
34682c98c7
Merge pull request #27605 from Enmk/fix_27193_toDateTime64_conversion 
Fixed parsing DateTime64 value from string.
 2021-08-12 13:32:59 +03:00
Vitaly Baranov
9243e89150
Update getauxval.c 2021-08-12 12:10:37 +03:00
Vitaly Baranov
242d8e1861
__auxv_init lazy initialization 2021-08-12 11:06:12 +02:00
Mikhail Filimonov
2c01e2789a
make vdso work again 2021-08-12 11:06:06 +02:00
Vasily Nemkov
bdc4d9fe75 Fixed parsing DateTime64 value from string. 
The time offset undeflowed on positive values.
 2021-08-12 10:37:46 +03:00
Raúl Marín
8bae14acb1 Separate minute intervals 
Instead of mixing multiple rounding, use toStartOfMinuteInterval for all
minute related calculations
 2021-08-10 17:01:56 +02:00
Raúl Marín
ede5369265 Revert toMinute changes and add additional roundDown fastpath 2021-08-10 12:55:49 +02:00
Raúl Marín
0771329bf3 Improvements based on review 2021-08-09 16:16:17 +02:00
Raúl Marín
367b314df6 Linter 2021-08-09 15:45:51 +02:00
Raúl Marín
5921f0cc82 Make gcc happy 2021-08-09 15:45:51 +02:00
Raúl Marín
abeaf60e4a Improve compatibility with non-whole-minute timezone offsets 2021-08-09 15:45:51 +02:00
Alexey Milovidov
7fa700de00 Merge branch 'master' into roaring-memory-tracker 2021-08-05 22:17:10 +03:00
alexey-milovidov
44441535ff
Update BaseDaemon.cpp 2021-07-30 09:21:03 +03:00
Nikolai Kochetov
3d029e66fe
Update BaseDaemon.cpp 2021-07-29 17:00:33 +03:00
Nikolai Kochetov
3b8cb7e4bf Print trace from std::terminate exception line-by-line to make it grep easier. 2021-07-29 15:49:31 +03:00
Vitaly Baranov
19d5a6ab2f
Merge pull request #26714 from vitlibar/new-function-current-profiles 
New functions currentProfiles(), enabledProfiles(), defaultProfiles().
 2021-07-23 09:10:29 +03:00
Vitaly Baranov
7afcc65060 Add new functions currentProfiles(), enabledProfiles(), defaultProfiles(). 2021-07-22 22:20:53 +03:00
Alexey Milovidov
2df3e14559 Attempt to add memory tracking to RoaringBitmaps 2021-07-22 02:56:17 +03:00
Azat Khuzhin
cfc79d9146 Fix history file conversion if file is empty 2021-07-20 21:00:53 +03:00
kssenii
3ba2d114d5 Revert "Merge pull request #26352 from ClickHouse/revert-25774-datatype-date32" 
This reverts commit 94a210650f, reversing
changes made to 0893b9ff8e.
 2021-07-15 11:41:52 +00:00
alexey-milovidov
9ba4064c86
Revert "Datatype Date32, support range 1925 to 2283" 2021-07-15 10:53:35 +03:00
neng.liu
dfe05ca583 fix test error 2021-07-11 06:14:03 -07:00
neng.liu
4669839fbb add comment and update ya.make 2021-07-11 04:55:42 -07:00
NengLiu
78f0bb9e24 add type cast 2021-07-09 15:28:44 +08:00
NengLiu
1d7d973dea change addWeeks delta's datatype from Int64 to Int32 2021-07-09 11:42:32 +08:00
NengLiu
e172ca240b change addQuarter delta's datatype from Int64 to Int32 2021-07-09 11:35:12 +08:00