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mariadb/mysql-test/suite/innodb/r/innodb_wl6326.result
Marko Mäkelä 2f7d91bb6c MDEV-22242 B-trees can become extremely skewed 
The test innodb.innodb_wl6326 that had been disabled in 10.4 due to
MDEV-21535 is failing on 10.5 due to a different reason: the removal
of the MLOG_COMP_END_COPY_CREATED operations in MDEV-12353
commit 276f996af9 caused PAGE_LAST_INSERT
to be set to something nonzero by the function page_copy_rec_list_end().

This in turn would cause btr_page_get_split_rec_to_right() to behave
differently: we would not attempt to split the page at all, but simply
insert the new record into the new, empty, right leaf page.

Even though the change reduced the sizes of some tables, it is better
to aim for balanced trees.

page_copy_rec_list_end(), PageBulk::finishPage():
Preserve PAGE_LAST_INSERT, PAGE_N_DIRECTION, PAGE_DIRECTION.

PageBulk::finish(): Move some common code from PageBulk::finishPage().
2020-04-14 18:43:03 +03:00

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SET GLOBAL innodb_adaptive_hash_index = false;
SET GLOBAL innodb_stats_persistent = false;
connect con1,localhost,root,,;
connect con2,localhost,root,,;
connect con3,localhost,root,,;
CREATE TABLE t1 (
a00 CHAR(255) NOT NULL DEFAULT 'a',
a01 CHAR(255) NOT NULL DEFAULT 'a',
a02 CHAR(255) NOT NULL DEFAULT 'a',
a03 CHAR(255) NOT NULL DEFAULT 'a',
a04 CHAR(255) NOT NULL DEFAULT 'a',
a05 CHAR(255) NOT NULL DEFAULT 'a',
a06 CHAR(255) NOT NULL DEFAULT 'a',
b INT NOT NULL DEFAULT 0
) ENGINE = InnoDB;
ALTER TABLE t1 ADD PRIMARY KEY(
a00,
a01,
a02,
a03,
a04,
a05,
a06
);
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
1
SET GLOBAL innodb_limit_optimistic_insert_debug = 7;
BEGIN;
INSERT INTO t1 (a00) VALUES ('aa');
INSERT INTO t1 (a00) VALUES ('ab');
INSERT INTO t1 (a00) VALUES ('ac');
INSERT INTO t1 (a00) VALUES ('ad');
INSERT INTO t1 (a00) VALUES ('ae');
INSERT INTO t1 (a00) VALUES ('af');
INSERT INTO t1 (a00) VALUES ('ag');
INSERT INTO t1 (a00) VALUES ('ah');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
3
BEGIN;
INSERT INTO t1 (a00) VALUES ('ai');
INSERT INTO t1 (a00) VALUES ('aj');
INSERT INTO t1 (a00) VALUES ('ak');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
4
BEGIN;
INSERT INTO t1 (a00) VALUES ('al');
INSERT INTO t1 (a00) VALUES ('am');
INSERT INTO t1 (a00) VALUES ('an');
INSERT INTO t1 (a00) VALUES ('ao');
INSERT INTO t1 (a00) VALUES ('ap');
INSERT INTO t1 (a00) VALUES ('aq');
INSERT INTO t1 (a00) VALUES ('ar');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
5
BEGIN;
INSERT INTO t1 (a00) VALUES ('as');
INSERT INTO t1 (a00) VALUES ('at');
INSERT INTO t1 (a00) VALUES ('au');
INSERT INTO t1 (a00) VALUES ('av');
INSERT INTO t1 (a00) VALUES ('aw');
INSERT INTO t1 (a00) VALUES ('ax');
INSERT INTO t1 (a00) VALUES ('ay');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
6
BEGIN;
INSERT INTO t1 (a00) VALUES ('az');
INSERT INTO t1 (a00) VALUES ('ba');
INSERT INTO t1 (a00) VALUES ('bb');
INSERT INTO t1 (a00) VALUES ('bc');
INSERT INTO t1 (a00) VALUES ('bd');
INSERT INTO t1 (a00) VALUES ('be');
INSERT INTO t1 (a00) VALUES ('bf');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
7
BEGIN;
INSERT INTO t1 (a00) VALUES ('bg');
INSERT INTO t1 (a00) VALUES ('bh');
INSERT INTO t1 (a00) VALUES ('bi');
INSERT INTO t1 (a00) VALUES ('bj');
INSERT INTO t1 (a00) VALUES ('bk');
INSERT INTO t1 (a00) VALUES ('bl');
INSERT INTO t1 (a00) VALUES ('bm');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
8
BEGIN;
INSERT INTO t1 (a00) VALUES ('bn');
INSERT INTO t1 (a00) VALUES ('bo');
INSERT INTO t1 (a00) VALUES ('bp');
INSERT INTO t1 (a00) VALUES ('bq');
INSERT INTO t1 (a00) VALUES ('br');
INSERT INTO t1 (a00) VALUES ('bs');
INSERT INTO t1 (a00) VALUES ('bt');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
11
BEGIN;
INSERT INTO t1 (a00) VALUES ('bu');
INSERT INTO t1 (a00) VALUES ('bv');
INSERT INTO t1 (a00) VALUES ('bw');
INSERT INTO t1 (a00) VALUES ('bx');
INSERT INTO t1 (a00) VALUES ('by');
INSERT INTO t1 (a00) VALUES ('bz');
INSERT INTO t1 (a00) VALUES ('ca');
INSERT INTO t1 (a00) VALUES ('cb');
INSERT INTO t1 (a00) VALUES ('cc');
INSERT INTO t1 (a00) VALUES ('cd');
INSERT INTO t1 (a00) VALUES ('ce');
INSERT INTO t1 (a00) VALUES ('cf');
INSERT INTO t1 (a00) VALUES ('cg');
INSERT INTO t1 (a00) VALUES ('ch');
INSERT INTO t1 (a00) VALUES ('ci');
INSERT INTO t1 (a00) VALUES ('cj');
INSERT INTO t1 (a00) VALUES ('ck');
INSERT INTO t1 (a00) VALUES ('cl');
INSERT INTO t1 (a00) VALUES ('cm');
INSERT INTO t1 (a00) VALUES ('cn');
INSERT INTO t1 (a00) VALUES ('co');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
15
BEGIN;
INSERT INTO t1 (a00) VALUES ('cp');
INSERT INTO t1 (a00) VALUES ('cq');
INSERT INTO t1 (a00) VALUES ('cr');
INSERT INTO t1 (a00) VALUES ('cs');
INSERT INTO t1 (a00) VALUES ('ct');
INSERT INTO t1 (a00) VALUES ('cu');
INSERT INTO t1 (a00) VALUES ('cv');
INSERT INTO t1 (a00) VALUES ('cw');
INSERT INTO t1 (a00) VALUES ('cx');
INSERT INTO t1 (a00) VALUES ('cy');
INSERT INTO t1 (a00) VALUES ('cz');
INSERT INTO t1 (a00) VALUES ('da');
INSERT INTO t1 (a00) VALUES ('db');
INSERT INTO t1 (a00) VALUES ('dc');
INSERT INTO t1 (a00) VALUES ('dd');
INSERT INTO t1 (a00) VALUES ('de');
INSERT INTO t1 (a00) VALUES ('df');
INSERT INTO t1 (a00) VALUES ('dg');
INSERT INTO t1 (a00) VALUES ('dh');
INSERT INTO t1 (a00) VALUES ('di');
INSERT INTO t1 (a00) VALUES ('dj');
INSERT INTO t1 (a00) VALUES ('dk');
INSERT INTO t1 (a00) VALUES ('dl');
INSERT INTO t1 (a00) VALUES ('dm');
INSERT INTO t1 (a00) VALUES ('dn');
INSERT INTO t1 (a00) VALUES ('do');
INSERT INTO t1 (a00) VALUES ('dp');
INSERT INTO t1 (a00) VALUES ('dq');
INSERT INTO t1 (a00) VALUES ('dr');
INSERT INTO t1 (a00) VALUES ('ds');
INSERT INTO t1 (a00) VALUES ('dt');
INSERT INTO t1 (a00) VALUES ('du');
INSERT INTO t1 (a00) VALUES ('dv');
INSERT INTO t1 (a00) VALUES ('dw');
INSERT INTO t1 (a00) VALUES ('dx');
INSERT INTO t1 (a00) VALUES ('dy');
INSERT INTO t1 (a00) VALUES ('dz');
INSERT INTO t1 (a00) VALUES ('ea');
INSERT INTO t1 (a00) VALUES ('eb');
INSERT INTO t1 (a00) VALUES ('ec');
INSERT INTO t1 (a00) VALUES ('ed');
INSERT INTO t1 (a00) VALUES ('ee');
INSERT INTO t1 (a00) VALUES ('ef');
INSERT INTO t1 (a00) VALUES ('eg');
INSERT INTO t1 (a00) VALUES ('eh');
INSERT INTO t1 (a00) VALUES ('ei');
INSERT INTO t1 (a00) VALUES ('ej');
INSERT INTO t1 (a00) VALUES ('ek');
INSERT INTO t1 (a00) VALUES ('el');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
23
BEGIN;
INSERT INTO t1 (a00) VALUES ('em');
INSERT INTO t1 (a00) VALUES ('en');
INSERT INTO t1 (a00) VALUES ('eo');
INSERT INTO t1 (a00) VALUES ('ep');
INSERT INTO t1 (a00) VALUES ('eq');
INSERT INTO t1 (a00) VALUES ('er');
INSERT INTO t1 (a00) VALUES ('es');
INSERT INTO t1 (a00) VALUES ('et');
INSERT INTO t1 (a00) VALUES ('eu');
INSERT INTO t1 (a00) VALUES ('ev');
INSERT INTO t1 (a00) VALUES ('ew');
INSERT INTO t1 (a00) VALUES ('ex');
INSERT INTO t1 (a00) VALUES ('ey');
INSERT INTO t1 (a00) VALUES ('ez');
INSERT INTO t1 (a00) VALUES ('fa');
INSERT INTO t1 (a00) VALUES ('fb');
INSERT INTO t1 (a00) VALUES ('fc');
INSERT INTO t1 (a00) VALUES ('fd');
INSERT INTO t1 (a00) VALUES ('fe');
INSERT INTO t1 (a00) VALUES ('ff');
INSERT INTO t1 (a00) VALUES ('fg');
INSERT INTO t1 (a00) VALUES ('fh');
INSERT INTO t1 (a00) VALUES ('fi');
INSERT INTO t1 (a00) VALUES ('fj');
INSERT INTO t1 (a00) VALUES ('fk');
INSERT INTO t1 (a00) VALUES ('fl');
INSERT INTO t1 (a00) VALUES ('fm');
INSERT INTO t1 (a00) VALUES ('fn');
INSERT INTO t1 (a00) VALUES ('fo');
INSERT INTO t1 (a00) VALUES ('fp');
INSERT INTO t1 (a00) VALUES ('fq');
INSERT INTO t1 (a00) VALUES ('fr');
INSERT INTO t1 (a00) VALUES ('fs');
INSERT INTO t1 (a00) VALUES ('ft');
INSERT INTO t1 (a00) VALUES ('fu');
INSERT INTO t1 (a00) VALUES ('fv');
INSERT INTO t1 (a00) VALUES ('fw');
INSERT INTO t1 (a00) VALUES ('fx');
INSERT INTO t1 (a00) VALUES ('fy');
INSERT INTO t1 (a00) VALUES ('fz');
INSERT INTO t1 (a00) VALUES ('ga');
INSERT INTO t1 (a00) VALUES ('gb');
INSERT INTO t1 (a00) VALUES ('gc');
INSERT INTO t1 (a00) VALUES ('gd');
INSERT INTO t1 (a00) VALUES ('ge');
INSERT INTO t1 (a00) VALUES ('gf');
INSERT INTO t1 (a00) VALUES ('gg');
INSERT INTO t1 (a00) VALUES ('gh');
COMMIT;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
29
SET GLOBAL innodb_limit_optimistic_insert_debug = 0;
# Test start
SET DEBUG_SYNC = 'RESET';
INSERT INTO t1 (a00) VALUES ('bfa');
connection con1;
SET DEBUG_SYNC = 'before_insert_pessimitic_row_ins_clust SIGNAL reached WAIT_FOR continue';
INSERT INTO t1 (a00) VALUES ('bfb');
connection con2;
SET DEBUG_SYNC = 'now WAIT_FOR reached';
SELECT a00,a01 FROM t1 WHERE a00 = 'aa';
a00 a01
aa a
SELECT a00,a01 FROM t1 WHERE a00 = 'aq';
a00 a01
aq a
SELECT a00,a01 FROM t1 WHERE a00 = 'cp';
a00 a01
cp a
SELECT a00,a01 FROM t1 WHERE a00 = 'el';
a00 a01
el a
SET DEBUG_SYNC = 'rw_s_lock_waiting SIGNAL lockwait1';
SELECT a00,a01 FROM t1 WHERE a00 = 'ar';
connection con3;
SET DEBUG_SYNC = 'rw_s_lock_waiting SIGNAL lockwait2';
SELECT a00,a01 FROM t1 WHERE a00 = 'cn';
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR lockwait1 TIMEOUT 1';
SET DEBUG_SYNC = 'now WAIT_FOR lockwait2 TIMEOUT 1';
SET DEBUG_SYNC = 'now SIGNAL continue';
connection con1;
connection con2;
a00 a01
ar a
connection con3;
a00 a01
cn a
connection default;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
30
SET DEBUG_SYNC = 'RESET';
INSERT INTO t1 (a00) VALUES ('coa');
connection con1;
SET DEBUG_SYNC = 'before_insert_pessimitic_row_ins_clust SIGNAL reached WAIT_FOR continue';
INSERT INTO t1 (a00) VALUES ('cob');
connection con2;
SET DEBUG_SYNC = 'now WAIT_FOR reached';
SET DEBUG_SYNC = 'rw_s_lock_waiting SIGNAL lockwait1';
SELECT a00,a01 FROM t1 WHERE a00 = 'aa';
connection con3;
SET DEBUG_SYNC = 'rw_s_lock_waiting SIGNAL lockwait2';
SELECT a00,a01 FROM t1 WHERE a00 = 'el';
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR lockwait1 TIMEOUT 1';
SET DEBUG_SYNC = 'now WAIT_FOR lockwait2 TIMEOUT 1';
SET DEBUG_SYNC = 'now SIGNAL continue';
connection con1;
connection con2;
a00 a01
aa a
connection con3;
a00 a01
el a
connection default;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
31
SET DEBUG_SYNC = 'RESET';
INSERT INTO t1 (a00) VALUES ('gba');
connection con1;
SET DEBUG_SYNC = 'before_insert_pessimitic_row_ins_clust SIGNAL reached WAIT_FOR continue';
INSERT INTO t1 (a00) VALUES ('gbb');
connection con2;
SET DEBUG_SYNC = 'now WAIT_FOR reached';
SELECT a00,a01 FROM t1 WHERE a00 = 'aa';
a00 a01
aa a
SELECT a00,a01 FROM t1 WHERE a00 = 'ek';
a00 a01
ek a
SET DEBUG_SYNC = 'rw_s_lock_waiting SIGNAL lockwait1';
SELECT a00,a01 FROM t1 WHERE a00 = 'el';
connection con3;
SET DEBUG_SYNC = 'rw_s_lock_waiting SIGNAL lockwait2';
SELECT a00,a01 FROM t1 WHERE a00 = 'gb';
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR lockwait1 TIMEOUT 1';
SET DEBUG_SYNC = 'now WAIT_FOR lockwait2 TIMEOUT 1';
SET DEBUG_SYNC = 'now SIGNAL continue';
connection con1;
connection con2;
a00 a01
el a
connection con3;
a00 a01
gb a
connection default;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SELECT CLUST_INDEX_SIZE FROM information_schema.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
CLUST_INDEX_SIZE
32
SET DEBUG_SYNC = 'RESET';
connection default;
disconnect con1;
disconnect con2;
disconnect con3;
DROP TABLE t1;
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