160523 13:07:29 [ERROR] Slave SQL: Error 'Duplicate entry '914166' for key
'PRIMARY'' on query. Default database: 'zo_dev_20121216'. Query: 'UPDATE
activity
SET
activity_type_id = 9,
subject = 'Send departure email',
date_due = '2016-05-26 01:00',
date_start = '2016-05-23 01:00',
activity_status_id = 1,
content = 'Send departure email'
WHERE
id = 2888555', Error_code: 1062
160523 13:07:29 [Warning] Slave: Duplicate entry '914166' for key 'PRIMARY'
Error_code: 1062
160523 13:07:29 [ERROR] Error running query, slave SQL thread aborted. Fix
the problem, and restart the slave …使用“mysqlslap”观察到以下情况。
mysqlslap -u root -p --create-schema=matrix --query=monthly_kpi.sql --iterations=1 --concurrency=1 --delimiter=";"
Benchmark
Average number of seconds to run all queries: 2.735 seconds
Minimum number of seconds to run all queries: 2.735 seconds
Maximum number of seconds to run all queries: 2.735 seconds
Number of clients running queries: 1
Average number of queries per client: 24
mysqlslap -u root -p --create-schema=matrix --query=monthly_kpi.sql --iterations=1 --concurrency=4 --delimiter=";"
Benchmark
Average number of seconds to run all queries: 14.600 seconds
Minimum number of seconds to run …