mysql Cluster2个数据节点压力测试–mysqlslap工具压400W写
锅巴哥的个人建议：cluster叫电信运营商版本，所以基本上在很大的用户并发量的情况下才会用到，对连接数的线性增长要求高的场景，千兆就不用想了， 没万兆就不用玩了。
很不幸，我的就是千兆网络，我的数据节点是16 core，32G内存，sql节点是16core，16G内存，做了raid10
PS: 水平所限，环境所限，测试结果仅供参考，欢迎大家一起交流提出宝贵的意见，让我更进一步。
1【】一：测试
10.80.40.107 3307
mysql -utim -pxxxxxxxx -P3307 -h10.80.40.107 –default-character-set=utf8
— select 查询测试 100W 数据压力测试
1.1 ndbcluster
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-guid-primary –concurrency=500,1000,1500 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=rdb10 –auto-generate-sql-load-type=read ) 1> r101.log 2> r102.log
— 20.40.30.31
(time mysqlslap –engine=ndbcluster –auto-generate-sql-guid-primary –concurrency=800,1200,1500 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=rdb10 –auto-generate-sql-load-type=read ) 1> /root/r101.log 2> /root/r102.log
1.2 innodb
— 20.40.30.37
(time mysqlslap –engine=innodb -h20.40.30.37 -P3307 -utim -pxxxxxxxx –auto-generate-sql-guid-primary –concurrency=800,1200,1500 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=idb10 –auto-generate-sql-load-type=read ) 1> /root/rin101.log 2> /root/rin102.log
2 mixed 读写混合压力测试
ndbcluster 10W
2.1【===================10W 写 =================】
— ndbcluster 在集群里面测试
2.1.1 ndbcluster 10W测试，并发分别为–concurrency=500，1000，1500
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=100000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb10 –-commint=100 –auto-generate-sql-load-type=write)
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1000 –number-of-queries=100000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb10 –-commint=100 –auto-generate-sql-load-type=write)
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1500 –number-of-queries=100000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb10 –-commint=100 –auto-generate-sql-load-type=write)
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 4.885 seconds
Minimum number of seconds to run all queries: 4.729 seconds
Maximum number of seconds to run all queries: 5.041 seconds
Number of clients running queries: 500
Average number of queries per client: 200
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 5.948 seconds
Minimum number of seconds to run all queries: 5.399 seconds
Maximum number of seconds to run all queries: 6.497 seconds
Number of clients running queries: 1000
Average number of queries per client: 100
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 6.866 seconds
Minimum number of seconds to run all queries: 6.116 seconds
Maximum number of seconds to run all queries: 7.617 seconds
Number of clients running queries: 1500
Average number of queries per client: 66
2.1.2 innodb 在20.40.30.52里面测试
— innodb 10W测试，并发分别为–concurrency=500，1000，1500
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500,1000,1500 –number-of-queries=100000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=indbw2 –-commint=100 –auto-generate-sql-load-type=write) 1> idb11w.log 2> indb12w.log
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 14.494 seconds
Minimum number of seconds to run all queries: 13.995 seconds
Maximum number of seconds to run all queries: 14.994 seconds
Number of clients running queries: 500
Average number of queries per client: 200
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 15.575 seconds
Minimum number of seconds to run all queries: 15.427 seconds
Maximum number of seconds to run all queries: 15.724 seconds
Number of clients running queries: 1000
Average number of queries per client: 100
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 14.275 seconds
Minimum number of seconds to run all queries: 13.989 seconds
Maximum number of seconds to run all queries: 14.561 seconds
Number of clients running queries: 1500
Average number of queries per client: 66
2.2【===================50W 写 =================】
2.2.1– ndbcluster 50W测试，并发分别为–concurrency=500，1000，1500
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=500000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb50 –-commint=100 –auto-generate-sql-load-type=write) 1> 51-500.log 2> 52-500.log
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1000 –number-of-queries=500000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb50 –-commint=100 –auto-generate-sql-load-type=write) 1> 51-1000.log 2> 52-1000.log
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1500 –number-of-queries=500000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb50 –-commint=100 –auto-generate-sql-load-type=write) 1> 51-1500.log 2> 52-1500.log
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 16.497 seconds
Minimum number of seconds to run all queries: 15.425 seconds
Maximum number of seconds to run all queries: 17.569 seconds
Number of clients running queries: 500
Average number of queries per client: 1000
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 16.355 seconds
Minimum number of seconds to run all queries: 16.114 seconds
Maximum number of seconds to run all queries: 16.596 seconds
Number of clients running queries: 1000
Average number of queries per client: 500
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 21.475 seconds
Minimum number of seconds to run all queries: 20.897 seconds
Maximum number of seconds to run all queries: 22.053 seconds
Number of clients running queries: 1500
Average number of queries per client: 333
2.2.2 innodb 50W测试，并发分别为–concurrency=500，1000，1500
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=500000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=indb52 –-commint=100 –auto-generate-sql-load-type=write) 1> idb51-500.log 2> idb52-500.log
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1000 –number-of-queries=500000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=indb52 –-commint=100 –auto-generate-sql-load-type=write) 1> idb51-1000.log 2> idb52-1000.log
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1500 –number-of-queries=500000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=indb52 –-commint=100 –auto-generate-sql-load-type=write) 1> idb51-1500.log 2> idb52-1500.log
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 72.366 seconds
Minimum number of seconds to run all queries: 72.271 seconds
Maximum number of seconds to run all queries: 72.461 seconds
Number of clients running queries: 500
Average number of queries per client: 1000
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 75.593 seconds
Minimum number of seconds to run all queries: 75.500 seconds
Maximum number of seconds to run all queries: 75.687 seconds
Number of clients running queries: 1000
Average number of queries per client: 500
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 70.388 seconds
Minimum number of seconds to run all queries: 69.999 seconds
Maximum number of seconds to run all queries: 70.777 seconds
Number of clients running queries: 1500
Average number of queries per client: 333
2.3 【===================100W 写 =================】
2.3.1 ndbcluster 100W测试，并发分别为–concurrency=500，1000，1500
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb100 –-commint=100 –auto-generate-sql-load-type=write) 1> 101-500.log 2> 102-500.log
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1000 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb100 –-commint=100 –auto-generate-sql-load-type=write) 1> 101-1000.log 2> 102-1000.log
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1500 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb100 –-commint=100 –auto-generate-sql-load-type=write) 1> 101-1500.log 2> 102-1500.log
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 32.005 seconds
Minimum number of seconds to run all queries: 30.456 seconds
Maximum number of seconds to run all queries: 33.555 seconds
Number of clients running queries: 500
Average number of queries per client: 2000
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 31.511 seconds
Minimum number of seconds to run all queries: 30.859 seconds
Maximum number of seconds to run all queries: 32.163 seconds
Number of clients running queries: 1000
Average number of queries per client: 1000
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 43.912 seconds
Minimum number of seconds to run all queries: 42.361 seconds
Maximum number of seconds to run all queries: 45.463 seconds
Number of clients running queries: 1500
Average number of queries per client: 666
2.3.2 innodb 100W测试，并发分别为–concurrency=500，1000，1500
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=indb100 –-commint=100 –auto-generate-sql-load-type=write) 1> idb101-500.log 2> idb102-500.log
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1000 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=indb100 –-commint=100 –auto-generate-sql-load-type=write) 1> idb101-1000.log 2> idb102-1000.log
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1500 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=indb100 –-commint=100 –auto-generate-sql-load-type=write) 1> idb101-1500.log 2> idb102-1500.log
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 144.806 seconds
Minimum number of seconds to run all queries: 144.262 seconds
Maximum number of seconds to run all queries: 145.350 seconds
Number of clients running queries: 500
Average number of queries per client: 2000
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 152.853 seconds
Minimum number of seconds to run all queries: 152.369 seconds
Maximum number of seconds to run all queries: 153.337 seconds
Number of clients running queries: 1000
Average number of queries per client: 1000
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 146.931 seconds
Minimum number of seconds to run all queries: 140.731 seconds
Maximum number of seconds to run all queries: 153.132 seconds
Number of clients running queries: 1500
Average number of queries per client: 666
2.4 【===================100W 更新 =================】
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=600,800,1000 –number-of-queries=1000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=udb100 –-commint=100 –auto-generate-sql-load-type=update) 1> u101.log 2> u102.log
2.5【===================200W 写 =================】
2.5.1 ndbcluster 200W测试，并发分别为–concurrency=500，1000，1500
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=2000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb200 –-commint=100 –auto-generate-sql-load-type=write) 1> 201-500.log 2> 202-500.log
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1000 –number-of-queries=2000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb200 –-commint=100 –auto-generate-sql-load-type=write) 1> 201-1000.log 2> 202-1000.log
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1500 –number-of-queries=2000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb200 –-commint=100 –auto-generate-sql-load-type=write) 1> 201-1500.log 2> 202-1500.log
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 62.594 seconds
Minimum number of seconds to run all queries: 62.386 seconds
Maximum number of seconds to run all queries: 62.802 seconds
Number of clients running queries: 500
Average number of queries per client: 4000
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 64.860 seconds
Minimum number of seconds to run all queries: 64.797 seconds
Maximum number of seconds to run all queries: 64.924 seconds
Number of clients running queries: 1000
Average number of queries per client: 2000
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 77.396 seconds
Minimum number of seconds to run all queries: 75.384 seconds
Maximum number of seconds to run all queries: 79.409 seconds
Number of clients running queries: 1500
Average number of queries per client: 1333
2.5.2 innodb 200W测试，并发分别为–concurrency=500，1000，1500
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=2000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb200 –-commint=100 –auto-generate-sql-load-type=write) 1> 201-500.log 2> 202-500.log
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1000 –number-of-queries=2000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb200 –-commint=100 –auto-generate-sql-load-type=write) 1> 201-1000.log 2> 202-1000.log
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1500 –number-of-queries=2000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb200 –-commint=100 –auto-generate-sql-load-type=write) 1> 201-1500.log 2> 202-1500.log
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 289.412 seconds
Minimum number of seconds to run all queries: 287.566 seconds
Maximum number of seconds to run all queries: 291.258 seconds
Number of clients running queries: 500
Average number of queries per client: 4000
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 305.715 seconds
Minimum number of seconds to run all queries: 305.452 seconds
Maximum number of seconds to run all queries: 305.978 seconds
Number of clients running queries: 1000
Average number of queries per client: 2000
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 283.794 seconds
Minimum number of seconds to run all queries: 282.688 seconds
Maximum number of seconds to run all queries: 284.901 seconds
Number of clients running queries: 1500
Average number of queries per client: 1333
2.6 【===================400W 写 =================】
2.6.1 ndbcluster 并发数量分别为–concurrency=500,1000,1500
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=4000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb400 –-commint=100 –auto-generate-sql-load-type=write) 1> 401-500.log 2> 402-500.log
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1000 –number-of-queries=4000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb400 –-commint=100 –auto-generate-sql-load-type=write) 1> 401-1000.log 2> 402-1000.log
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1500 –number-of-queries=4000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb400 –-commint=100 –auto-generate-sql-load-type=write) 1> 401-1500.log 2> 402-1500.log
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 125.639 seconds
Minimum number of seconds to run all queries: 124.601 seconds
Maximum number of seconds to run all queries: 126.677 seconds
Number of clients running queries: 500
Average number of queries per client: 8000
(time mysqlslap –engine=ndbcluster -h10.80.40.107 -P3307 -utim -pxxxxxxxx –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=4000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb400 –-commint=100 –auto-generate-sql-load-type=write) 1> 401-500.log 2> 402-500.log
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 128.481 seconds
Minimum number of seconds to run all queries: 128.027 seconds
Maximum number of seconds to run all queries: 128.935 seconds
Number of clients running queries: 1000
Average number of queries per client: 4000
Benchmark
Running for engine ndbcluster
Average number of seconds to run all queries: 163.654 seconds
Minimum number of seconds to run all queries: 160.584 seconds
Maximum number of seconds to run all queries: 166.724 seconds
Number of clients running queries: 1500
Average number of queries per client: 2666
2.6.2 innodb 并发数量分别为–concurrency=500,1000,1500
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=500 –number-of-queries=4000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb400 –-commint=100 –auto-generate-sql-load-type=write) 1> 401-500.log 2> 402-500.log
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1000 –number-of-queries=4000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb400 –-commint=100 –auto-generate-sql-load-type=write) 1> 401-1000.log 2> 402-1000.log
(time mysqlslap –engine=innodb -h127.0.0.1 -P3307 -uadmin -pMxxxxxd –auto-generate-sql-write-number=1000 –auto-generate-sql-guid-primary –concurrency=1500 –number-of-queries=4000000 –iterations=2 –number-char-cols=10 –number-int-cols=10 –auto-generate-sql –create-schema=ndb400 –-commint=100 –auto-generate-sql-load-type=write) 1> 401-1500.log 2> 402-1500.log
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 590.100 seconds
Minimum number of seconds to run all queries: 586.919 seconds
Maximum number of seconds to run all queries: 593.281 seconds
Number of clients running queries: 500
Average number of queries per client: 8000
Benchmark
Running for engine innodb
Average number of seconds to run all queries: 675.111 seconds
Minimum number of seconds to run all queries: 649.595 seconds
Maximum number of seconds to run all queries: 700.628 seconds
Number of clients running queries: 1000
Average number of queries per client: 4000
time mysql –default-character-set=utf8 -utim -pxxxxxxxx -h20.40.30.35 -P3307 -o bgcarddb < /home/bgcarddb.sql 2 > c1.log
3 PS 启动31的sql节点。
cp /usr/local/mysqla/bin/mysqld /usr/local/mysql/bin/mysqld
sudo /usr/local/mysqla/bin/mysqld_safe –basedir=/usr/local/mysqla/ –datadir=/data/bgdata –user=mysql &
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