文章目录
一、背景
java项目服务：xpt-windows-servicemysql数据库版本：8.0.17
项目接收中转台上报的业务数据，频率大概是1秒4-5条，240/1分钟，由于上报的比较频繁会看到数据库CPU占用率非常高，导致数据入库卡顿现象。
因为我的是事后整理所有有的截图不是当时的错误截图，线上mysql服务器经常性出现cpu使用率100%的告警， 因此整理一下排查该问题的常规流程。
二、排查方案
首先不要重启xpt-windows-service服务或者mysql服务，因为如果重启了可能错误现象就不复现了。
2.1第一步：先排查资源管理器查看CPU、内存、磁盘空间、网络
结论：按照当时的错误截图CPU直接占100%，然后去资源管理器查看
结论：当时我的错误场景不是这块的原因，所以当时的截图都是正常的，没看到任何异常数据，只能看到mysql的CPU占用100%。
2.2第二步：排查排查锁争用与事务
java
SHOW ENGINE INNODB STATUS;
java
=====================================
2026-01-09 16:52:02 0x4f0 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 34 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 5897 srv_active, 0 srv_shutdown, 2421 srv_idle
srv_master_thread log flush and writes: 0
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 65084
OS WAIT ARRAY INFO: signal count 68837
RW-shared spins 31956, rounds 35392, OS waits 3409
RW-excl spins 1611, rounds 48034, OS waits 3041
RW-sx spins 66, rounds 1799, OS waits 52
Spin rounds per wait: 1.11 RW-shared, 29.82 RW-excl, 27.26 RW-sx
------------------------
LATEST DETECTED DEADLOCK
------------------------
2026-01-09 15:40:50 0x2f34
*** (1) TRANSACTION:
TRANSACTION 281952663838920, ACTIVE 0 sec fetching rows
mysql tables in use 1, locked 1
LOCK WAIT 4 lock struct(s), heap size 1136, 28 row lock(s)
MySQL thread id 52, OS thread handle 15000, query id 806996727 localhost 127.0.0.1 root executing
/* dynamic native SQL query */ INSERT INTO stac_site_day (SiteID, `Date`, BizType, BizTime, Count) SELECT r.site_id, rd.`date`, rd.biztype, SUM(BizTime) AS BizTime, SUM(Count) AS Count FROM stac_rpt rd INNER JOIN repeater r ON rd.RptSN = r.serial_no WHERE r.deleted = 0 AND DATE_FORMAT(rd.date, '%Y-%m-%d') = '2026-01-08' GROUP BY r.site_id, rd.`date`, rd.biztype
*** (1) WAITING FOR THIS LOCK TO BE GRANTED:
RECORD LOCKS space id 37 page no 4 n bits 128 index PRIMARY of table `xpt_db`.`repeater` trx id 281952663838920 lock mode S waiting
Record lock, heap no 56 PHYSICAL RECORD: n_fields 50; compact format; info bits 0
0: len 4; hex 8000001c; asc ;;
1: len 6; hex 0000004a007a; asc J z;;
2: len 7; hex 01000001a8038e; asc ;;
3: len 4; hex 8000000b; asc ;;
4: len 13; hex 31312d31205852413830205531; asc 11-1 XRA80 U1;;
5: len 11; hex 31302e3131352e352e3839; asc 10.115.5.89;;
6: len 10; hex 30363132524433363337; asc 0612RD3637;;
7: len 4; hex 80000001; asc ;;
8: len 4; hex 80000000; asc ;;
9: len 4; hex 800000a1; asc ;;
10: len 4; hex 80000000; asc ;;
11: len 4; hex 80000000; asc ;;
12: len 14; hex 3139322e3136382e31312e313031; asc 192.168.11.101;;
13: len 11; hex 31302e3131352e352e3631; asc 10.115.5.61;;
14: len 4; hex 8000c350; asc P;;
15: len 4; hex 80000001; asc ;;
16: len 4; hex 8000c350; asc P;;
17: len 7; hex 80000000000000; asc ;;
18: len 3; hex 800000; asc ;;
19: len 3; hex 800000; asc ;;
20: len 5; hex 8000000000; asc ;;
21: len 7; hex 80000000000000; asc ;;
22: len 3; hex 800000; asc ;;
23: len 3; hex 800000; asc ;;
24: len 5; hex 8000000000; asc ;;
25: len 6; hex 800000000000; asc ;;
26: len 4; hex 80000000; asc ;;
27: len 5; hex 5852413830; asc XRA80;;
28: len 28; hex 58524138302d30303030423030302d3030303044432d55312d302d42; asc XRA80-0000B000-0000DC-U1-0-B;;
29: len 11; hex 41312e302e30312e303034; asc A1.0.01.004;;
30: len 0; hex ; asc ;;
31: len 9; hex 343033353632373730; asc 403562770;;
32: len 9; hex 343134393235373330; asc 414925730;;
33: len 1; hex 32; asc 2;;
34: len 0; hex ; asc ;;
35: len 4; hex 80000004; asc ;;
36: SQL NULL;
37: SQL NULL;
38: SQL NULL;
39: len 6; hex 7075626c6963; asc public;;
40: len 6; hex 7075626c6963; asc public;;
41: len 1; hex 30; asc 0;;
42: len 1; hex 30; asc 0;;
43: len 0; hex ; asc ;;
44: len 1; hex 30; asc 0;;
45: len 0; hex ; asc ;;
46: len 0; hex ; asc ;;
47: len 1; hex 30; asc 0;;
48: len 0; hex ; asc ;;
49: len 0; hex ; asc ;;
*** (2) TRANSACTION:
TRANSACTION 4849786, ACTIVE 0 sec starting index read
mysql tables in use 1, locked 1
5 lock struct(s), heap size 1136, 5 row lock(s), undo log entries 1
MySQL thread id 55, OS thread handle 12084, query id 807009811 localhost 127.0.0.1 root updating
/* dynamic native SQL query */ UPDATE REPEATER SET FIRMWAVE_NO = 'A3.0.20.011', CURRENT_RX_FREQUENCE = '428255000', CURRENT_TX_FREQUENCE = '438375000', CUR_MODE = '2', IPADDRESS = '10.115.5.61', REAL_ACCESS_CODE = 'public', MODEL_NAME = 'HR1060', MODEL_NO = 'HRA60-00000000-0000DC-U1-0-B' WHERE SERIAL_NO = '0612RD3617'
*** (2) HOLDS THE LOCK(S):
RECORD LOCKS space id 37 page no 4 n bits 128 index PRIMARY of table `xpt_db`.`repeater` trx id 4849786 lock_mode X locks rec but not gap
Record lock, heap no 56 PHYSICAL RECORD: n_fields 50; compact format; info bits 0
0: len 4; hex 8000001c; asc ;;
1: len 6; hex 0000004a007a; asc J z;;
2: len 7; hex 01000001a8038e; asc ;;
3: len 4; hex 8000000b; asc ;;
4: len 13; hex 31312d31205852413830205531; asc 11-1 XRA80 U1;;
5: len 11; hex 31302e3131352e352e3839; asc 10.115.5.89;;
6: len 10; hex 30363132524433363337; asc 0612RD3637;;
7: len 4; hex 80000001; asc ;;
8: len 4; hex 80000000; asc ;;
9: len 4; hex 800000a1; asc ;;
10: len 4; hex 80000000; asc ;;
11: len 4; hex 80000000; asc ;;
12: len 14; hex 3139322e3136382e31312e313031; asc 192.168.11.101;;
13: len 11; hex 31302e3131352e352e3631; asc 10.115.5.61;;
14: len 4; hex 8000c350; asc P;;
15: len 4; hex 80000001; asc ;;
16: len 4; hex 8000c350; asc P;;
17: len 7; hex 80000000000000; asc ;;
18: len 3; hex 800000; asc ;;
19: len 3; hex 800000; asc ;;
20: len 5; hex 8000000000; asc ;;
21: len 7; hex 80000000000000; asc ;;
22: len 3; hex 800000; asc ;;
23: len 3; hex 800000; asc ;;
24: len 5; hex 8000000000; asc ;;
25: len 6; hex 800000000000; asc ;;
26: len 4; hex 80000000; asc ;;
27: len 5; hex 5852413830; asc XRA80;;
28: len 28; hex 58524138302d30303030423030302d3030303044432d55312d302d42; asc XRA80-0000B000-0000DC-U1-0-B;;
29: len 11; hex 41312e302e30312e303034; asc A1.0.01.004;;
30: len 0; hex ; asc ;;
31: len 9; hex 343033353632373730; asc 403562770;;
32: len 9; hex 343134393235373330; asc 414925730;;
33: len 1; hex 32; asc 2;;
34: len 0; hex ; asc ;;
35: len 4; hex 80000004; asc ;;
36: SQL NULL;
37: SQL NULL;
38: SQL NULL;
39: len 6; hex 7075626c6963; asc public;;
40: len 6; hex 7075626c6963; asc public;;
41: len 1; hex 30; asc 0;;
42: len 1; hex 30; asc 0;;
43: len 0; hex ; asc ;;
44: len 1; hex 30; asc 0;;
45: len 0; hex ; asc ;;
46: len 0; hex ; asc ;;
47: len 1; hex 30; asc 0;;
48: len 0; hex ; asc ;;
49: len 0; hex ; asc ;;
*** (2) WAITING FOR THIS LOCK TO BE GRANTED:
RECORD LOCKS space id 37 page no 4 n bits 128 index PRIMARY of table `xpt_db`.`repeater` trx id 4849786 lock_mode X locks rec but not gap waiting
Record lock, heap no 12 PHYSICAL RECORD: n_fields 50; compact format; info bits 0
0: len 4; hex 8000000b; asc ;;
1: len 6; hex 0000004a0075; asc J u;;
2: len 7; hex 0200000153119f; asc S ;;
3: len 4; hex 80000003; asc ;;
4: len 11; hex 332d322041363055314144; asc 3-2 A60U1AD;;
5: len 11; hex 31302e3131352e352e3631; asc 10.115.5.61;;
6: len 10; hex 30363132524433363137; asc 0612RD3617;;
7: len 4; hex 80000002; asc ;;
8: len 4; hex 80000000; asc ;;
9: len 4; hex 800000a3; asc ;;
10: len 4; hex 80000000; asc ;;
11: len 4; hex 80000000; asc ;;
12: len 14; hex 3139322e3136382e37302e313032; asc 192.168.70.102;;
13: len 7; hex 302e302e302e30; asc 0.0.0.0;;
14: len 4; hex 8000c350; asc P;;
15: len 4; hex 80000001; asc ;;
16: len 4; hex 8000c350; asc P;;
17: len 7; hex 80000000000000; asc ;;
18: len 3; hex 800000; asc ;;
19: len 3; hex 800000; asc ;;
20: len 5; hex 8000000000; asc ;;
21: len 7; hex 80000000000000; asc ;;
22: len 3; hex 800000; asc ;;
23: len 3; hex 800000; asc ;;
24: len 5; hex 8000000000; asc ;;
25: len 6; hex 800000000000; asc ;;
26: len 4; hex 80000000; asc ;;
27: len 6; hex 485231303630; asc HR1060;;
28: len 28; hex 48524136302d30303030303030302d3030303044432d55312d302d42; asc HRA60-00000000-0000DC-U1-0-B;;
29: len 11; hex 41332e302e32302e303131; asc A3.0.20.011;;
30: len 0; hex ; asc ;;
31: len 9; hex 343238323535303030; asc 428255000;;
32: len 9; hex 343338333735303030; asc 438375000;;
33: len 1; hex 32; asc 2;;
34: len 0; hex ; asc ;;
35: len 4; hex 80000002; asc ;;
36: SQL NULL;
37: SQL NULL;
38: SQL NULL;
39: len 6; hex 7075626c6963; asc public;;
40: len 6; hex 7075626c6963; asc public;;
41: len 1; hex 30; asc 0;;
42: len 1; hex 30; asc 0;;
43: len 0; hex ; asc ;;
44: len 1; hex 30; asc 0;;
45: len 0; hex ; asc ;;
46: len 0; hex ; asc ;;
47: len 1; hex 30; asc 0;;
48: len 0; hex ; asc ;;
49: len 0; hex ; asc ;;
*** WE ROLL BACK TRANSACTION (2)
------------
TRANSACTIONS
------------
Trx id counter 4873681
Purge done for trx's n:o < 4873680 undo n:o < 0 state: running but idle
History list length 21
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 281952663849000, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663847320, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663843120, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663840600, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663838080, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663841440, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663837240, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663846480, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663843960, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663842280, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663839760, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663838920, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663851520, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663850680, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663849840, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 281952663836400, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: wait Windows aio (insert buffer thread)
I/O thread 1 state: wait Windows aio (log thread)
I/O thread 2 state: wait Windows aio (read thread)
I/O thread 3 state: wait Windows aio (read thread)
I/O thread 4 state: wait Windows aio (read thread)
I/O thread 5 state: wait Windows aio (read thread)
I/O thread 6 state: wait Windows aio (write thread)
I/O thread 7 state: wait Windows aio (write thread)
I/O thread 8 state: wait Windows aio (write thread)
I/O thread 9 state: wait Windows aio (write thread)
Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] ,
ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
1472 OS file reads, 256750 OS file writes, 79077 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 31.76 writes/s, 9.50 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2, 0 merges
merged operations:
insert 0, delete mark 0, delete 0
discarded operations:
insert 0, delete mark 0, delete 0
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
Hash table size 34679, node heap has 18 buffer(s)
595.95 hash searches/s, 659.60 non-hash searches/s
---
LOG
---
Log sequence number 6358686886
Log buffer assigned up to 6358686886
Log buffer completed up to 6358686886
Log written up to 6358686886
Log flushed up to 6358686886
Added dirty pages up to 6358686886
Pages flushed up to 6358620756
Last checkpoint at 6358620756
140068 log i/o's done, 16.74 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 742479
Buffer pool size 8192
Free buffers 6530
Database pages 1629
Old database pages 581
Modified db pages 81
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 3480, not young 150
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1373, created 262, written 108066
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 0 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1629, unzip_LRU len: 0
I/O sum[654]:cur[4], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
3 read views open inside InnoDB
Process ID=6696, Main thread ID=00000000000020A8 , state=sleeping
Number of rows inserted 2117, updated 32276, deleted 1632, read 6527074908
0.24 inserts/s, 3.65 updates/s, 0.24 deletes/s, 1515209.85 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================通过deepseek分析发现
然后我的解决方案就是：我们这个统计是每10分钟执行一次，我直接给它代码注释不让它执行，然后替换jar包重启服务发现无效，数据库CPUh还是占满，说明问题也不是它。
2.3第三步：排查检查MySQL配置连接数是否达到最大
java
-- 当前连接数
SHOW STATUS LIKE 'Threads_connected'; 
java
-- 最大允许连接数
SHOW VARIABLES LIKE 'max_connections'; 
结论：一看也不是这块原因，排查到这一步说明数据库层面没啥问题，接下来重启mysql服务验证是否有问题。
2.4第四步：重启mysql服务验证是否有问题
结论：重启后发现无任何改进，mysql的CPU还是占100%，说明不是它的问题，继续排查。
2.5第五步：重启xpt-windows-service服务
重启后发现CPU占用率立刻降下去了，说明问题就出在这个服务上（即：说明是某个sql导致的）。到这一步说明有2个排查方向导致的：
排查方向1：程序在频繁执行某个sql，比如一分钟上百次查询，导致mysql占用率高。排查方向2：某个业务sql查询很慢导致，比如某个统计柱状图sql查询相应时长10s+的，导致后面的数据处理慢堆积了。
2.6第六步：查看慢sql文件，看看那个sql执行慢
查看慢日志是否开启
java
SHOW VARIABLES LIKE 'slow_query_log';
查看慢日志位置
java
SHOW VARIABLES LIKE 'slow_query_log_file';
java
C:\Program Files (x86)\xnms-install\mysql\bin\mysqld.exe, Version: 8.0.17 (MySQL Community Server - GPL). started with:
TCP Port: 0, Named Pipe: (null)
Time Id Command Argument
C:\Program Files (x86)\xnms-install\mysql\bin\mysqld.exe, Version: 8.0.17 (MySQL Community Server - GPL). started with:
TCP Port: 13306, Named Pipe: (null)
Time Id Command Argument
# Time: 2026-01-01T01:20:18.547950Z
# User@Host: root[root] @ localhost [127.0.0.1] Id: 1907
# Query_time: 13.071278 Lock_time: 0.000818 Rows_sent: 0 Rows_examined: 166336
use xpt_db;
SET timestamp=1767230405;
/* dynamic native SQL query */ INSERT INTO stac_rpt (rptsn, date, timesolt, biztype, biztime, count, h0001biztime, h0001bizcount, h0102biztime, h0102bizcount, h0203biztime, h0203bizcount, h0304biztime, h0304bizcount, h0405biztime, h0405bizcount, h0506biztime, h0506bizcount, h0607biztime, h0607bizcount, h0708biztime, h0708bizcount, h0809biztime, h0809bizcount, h0910biztime, h0910bizcount, h1011biztime, h1011bizcount, h1112biztime, h1112bizcount, h1213biztime, h1213bizcount, h1314biztime, h1314bizcount, h1415biztime, h1415bizcount, h1516biztime, h1516bizcount, h1617biztime, h1617bizcount, h1718biztime, h1718bizcount, h1819biztime, h1819bizcount, h1920biztime, h1920bizcount, h2021biztime, h2021bizcount, h2122biztime, h2122bizcount, h2223biztime, h2223bizcount, h2324biztime, h2324bizcount) SELECT serial_no AS RptSN, DATE_FORMAT(starttime, '%Y-%m-%d'), slot AS TimeSolt, type AS BizType, SUM(duration) AS biztime, COUNT(*) AS count, SUM(CASE WHEN HOUR(starttime) = 0 THEN duration ELSE 0 END) AS H0001BizTime, COUNT(CASE WHEN HOUR(starttime) = 0 THEN 1 ELSE NULL END) AS H0001BizCount, SUM(CASE WHEN HOUR(starttime) = 1 THEN duration ELSE 0 END) AS H0102BizTime, COUNT(CASE WHEN HOUR(starttime) = 1 THEN 1 ELSE NULL END) AS H0102BizCount, SUM(CASE WHEN HOUR(starttime) = 2 THEN duration ELSE 0 END) AS H0203BizTime, COUNT(CASE WHEN HOUR(starttime) = 2 THEN 1 ELSE NULL END) AS H0203BizCount, SUM(CASE WHEN HOUR(starttime) = 3 THEN duration ELSE 0 END) AS H0304BizTime, COUNT(CASE WHEN HOUR(starttime) = 3 THEN 1 ELSE NULL END) AS H0304BizCount, SUM(CASE WHEN HOUR(starttime) = 4 THEN duration ELSE 0 END) AS H0405BizTime, COUNT(CASE WHEN HOUR(starttime) = 4 THEN 1 ELSE NULL END) AS H0405BizCount, SUM(CASE WHEN HOUR(starttime) = 5 THEN duration ELSE 0 END) AS H0506BizTime, COUNT(CASE WHEN HOUR(starttime) = 5 THEN 1 ELSE NULL END) AS H0506BizCount, SUM(CASE WHEN HOUR(starttime) = 6 THEN duration ELSE 0 END) AS H0607BizTime, COUNT(CASE WHEN HOUR(starttime) = 6 THEN 1 ELSE NULL END) AS H0607BizCount, SUM(CASE WHEN HOUR(starttime) = 7 THEN duration ELSE 0 END) AS H0708BizTime, COUNT(CASE WHEN HOUR(starttime) = 7 THEN 1 ELSE NULL END) AS H0708BizCount, SUM(CASE WHEN HOUR(starttime) = 8 THEN duration ELSE 0 END) AS H0809BizTime, COUNT(CASE WHEN HOUR(starttime) = 8 THEN 1 ELSE NULL END) AS H0809BizCount, SUM(CASE WHEN HOUR(starttime) = 9 THEN duration ELSE 0 END) AS H0910BizTime, COUNT(CASE WHEN HOUR(starttime) = 9 THEN 1 ELSE NULL END) AS H0910BizCount, SUM(CASE WHEN HOUR(starttime) = 10 THEN duration ELSE 0 END) AS H1011BizTime, COUNT(CASE WHEN HOUR(starttime) = 10 THEN 1 ELSE NULL END) AS H1011BizCount, SUM(CASE WHEN HOUR(starttime) = 11 THEN duration ELSE 0 END) AS H1112BizTime, COUNT(CASE WHEN HOUR(starttime) = 11 THEN 1 ELSE NULL END) AS H1112BizCount, SUM(CASE WHEN HOUR(starttime) = 12 THEN duration ELSE 0 END) AS H1213BizTime, COUNT(CASE WHEN HOUR(starttime) = 12 THEN 1 ELSE NULL END) AS H1213BizCount, SUM(CASE WHEN HOUR(starttime) = 13 THEN duration ELSE 0 END) AS H1314BizTime, COUNT(CASE WHEN HOUR(starttime) = 13 THEN 1 ELSE NULL END) AS H1314BizCount, SUM(CASE WHEN HOUR(starttime) = 14 THEN duration ELSE 0 END) AS H1415BizTime, COUNT(CASE WHEN HOUR(starttime) = 14 THEN 1 ELSE NULL END) AS H1415BizCount, SUM(CASE WHEN HOUR(starttime) = 15 THEN duration ELSE 0 END) AS H1516BizTime, COUNT(CASE WHEN HOUR(starttime) = 15 THEN 1 ELSE NULL END) AS H1516BizCount, SUM(CASE WHEN HOUR(starttime) = 16 THEN duration ELSE 0 END) AS H1617BizTime, COUNT(CASE WHEN HOUR(starttime) = 16 THEN 1 ELSE NULL END) AS H1617BizCount, SUM(CASE WHEN HOUR(starttime) = 17 THEN duration ELSE 0 END) AS H1718BizTime, COUNT(CASE WHEN HOUR(starttime) = 17 THEN 1 ELSE NULL END) AS H1718BizCount, SUM(CASE WHEN HOUR(starttime) = 18 THEN duration ELSE 0 END) AS H1819BizTime, COUNT(CASE WHEN HOUR(starttime) = 18 THEN 1 ELSE NULL END) AS H1819BizCount, SUM(CASE WHEN HOUR(starttime) = 19 THEN duration ELSE 0 END) AS H1920BizTime, COUNT(CASE WHEN HOUR(starttime) = 19 THEN 1 ELSE NULL END) AS H1920BizCount, SUM(CASE WHEN HOUR(starttime) = 20 THEN duration ELSE 0 END) AS H2021BizTime, COUNT(CASE WHEN HOUR(starttime) = 20 THEN 1 ELSE NULL END) AS H2021BizCount, SUM(CASE WHEN HOUR(starttime) = 21 THEN duration ELSE 0 END) AS H2122BizTime, COUNT(CASE WHEN HOUR(starttime) = 21 THEN 1 ELSE NULL END) AS H2122BizCount, SUM(CASE WHEN HOUR(starttime) = 22 THEN duration ELSE 0 END) AS H2223BizTime, COUNT(CASE WHEN HOUR(starttime) = 22 THEN 1 ELSE NULL END) AS H2223BizCount, SUM(CASE WHEN HOUR(starttime) = 23 THEN duration ELSE 0 END) AS H2324BizTime, COUNT(CASE WHEN HOUR(starttime) = 23 THEN 1 ELSE NULL END) AS H2324BizCount FROM rptbiz202553 WHERE type != -1 AND DATE_FORMAT(starttime, '%Y-%m-%d') = '2025-12-31' GROUP BY serial_no, DATE_FORMAT(starttime, '%Y-%m-%d'), slot, type;
# Time: 2026-01-02T10:20:23.331405Z
# User@Host: root[root] @ localhost [127.0.0.1] Id: 3256
# Query_time: 10.106222 Lock_time: 0.011833 Rows_sent: 0 Rows_examined: 370067
SET timestamp=1767349213;
/* dynamic native SQL query */ INSERT INTO stac_rpt (rptsn, date, timesolt, biztype, biztime, count, h0001biztime, h0001bizcount, h0102biztime, h0102bizcount, h0203biztime, h0203bizcount, h0304biztime, h0304bizcount, h0405biztime, h0405bizcount, h0506biztime, h0506bizcount, h0607biztime, h0607bizcount, h0708biztime, h0708bizcount, h0809biztime, h0809bizcount, h0910biztime, h0910bizcount, h1011biztime, h1011bizcount, h1112biztime, h1112bizcount, h1213biztime, h1213bizcount, h1314biztime, h1314bizcount, h1415biztime, h1415bizcount, h1516biztime, h1516bizcount, h1617biztime, h1617bizcount, h1718biztime, h1718bizcount, h1819biztime, h1819bizcount, h1920biztime, h1920bizcount, h2021biztime, h2021bizcount, h2122biztime, h2122bizcount, h2223biztime, h2223bizcount, h2324biztime, h2324bizcount) SELECT serial_no AS RptSN, DATE_FORMAT(starttime, '%Y-%m-%d'), slot AS TimeSolt, type AS BizType, SUM(duration) AS biztime, COUNT(*) AS count, SUM(CASE WHEN HOUR(starttime) = 0 THEN duration ELSE 0 END) AS H0001BizTime, COUNT(CASE WHEN HOUR(starttime) = 0 THEN 1 ELSE NULL END) AS H0001BizCount, SUM(CASE WHEN HOUR(starttime) = 1 THEN duration ELSE 0 END) AS H0102BizTime, COUNT(CASE WHEN HOUR(starttime) = 1 THEN 1 ELSE NULL END) AS H0102BizCount, SUM(CASE WHEN HOUR(starttime) = 2 THEN duration ELSE 0 END) AS H0203BizTime, COUNT(CASE WHEN HOUR(starttime) = 2 THEN 1 ELSE NULL END) AS H0203BizCount, SUM(CASE WHEN HOUR(starttime) = 3 THEN duration ELSE 0 END) AS H0304BizTime, COUNT(CASE WHEN HOUR(starttime) = 3 THEN 1 ELSE NULL END) AS H0304BizCount, SUM(CASE WHEN HOUR(starttime) = 4 THEN duration ELSE 0 END) AS H0405BizTime, COUNT(CASE WHEN HOUR(starttime) = 4 THEN 1 ELSE NULL END) AS H0405BizCount, SUM(CASE WHEN HOUR(starttime) = 5 THEN duration ELSE 0 END) AS H0506BizTime, COUNT(CASE WHEN HOUR(starttime) = 5 THEN 1 ELSE NULL END) AS H0506BizCount, SUM(CASE WHEN HOUR(starttime) = 6 THEN duration ELSE 0 END) AS H0607BizTime, COUNT(CASE WHEN HOUR(starttime) = 6 THEN 1 ELSE NULL END) AS H0607BizCount, SUM(CASE WHEN HOUR(starttime) = 7 THEN duration ELSE 0 END) AS H0708BizTime, COUNT(CASE WHEN HOUR(starttime) = 7 THEN 1 ELSE NULL END) AS H0708BizCount, SUM(CASE WHEN HOUR(starttime) = 8 THEN duration ELSE 0 END) AS H0809BizTime, COUNT(CASE WHEN HOUR(starttime) = 8 THEN 1 ELSE NULL END) AS H0809BizCount, SUM(CASE WHEN HOUR(starttime) = 9 THEN duration ELSE 0 END) AS H0910BizTime, COUNT(CASE WHEN HOUR(starttime) = 9 THEN 1 ELSE NULL END) AS H0910BizCount, SUM(CASE WHEN HOUR(starttime) = 10 THEN duration ELSE 0 END) AS H1011BizTime, COUNT(CASE WHEN HOUR(starttime) = 10 THEN 1 ELSE NULL END) AS H1011BizCount, SUM(CASE WHEN HOUR(starttime) = 11 THEN duration ELSE 0 END) AS H1112BizTime, COUNT(CASE WHEN HOUR(starttime) = 11 THEN 1 ELSE NULL END) AS H1112BizCount, SUM(CASE WHEN HOUR(starttime) = 12 THEN duration ELSE 0 END) AS H1213BizTime, COUNT(CASE WHEN HOUR(starttime) = 12 THEN 1 ELSE NULL END) AS H1213BizCount, SUM(CASE WHEN HOUR(starttime) = 13 THEN duration ELSE 0 END) AS H1314BizTime, COUNT(CASE WHEN HOUR(starttime) = 13 THEN 1 ELSE NULL END) AS H1314BizCount, SUM(CASE WHEN HOUR(starttime) = 14 THEN duration ELSE 0 END) AS H1415BizTime, COUNT(CASE WHEN HOUR(starttime) = 14 THEN 1 ELSE NULL END) AS H1415BizCount, SUM(CASE WHEN HOUR(starttime) = 15 THEN duration ELSE 0 END) AS H1516BizTime, COUNT(CASE WHEN HOUR(starttime) = 15 THEN 1 ELSE NULL END) AS H1516BizCount, SUM(CASE WHEN HOUR(starttime) = 16 THEN duration ELSE 0 END) AS H1617BizTime, COUNT(CASE WHEN HOUR(starttime) = 16 THEN 1 ELSE NULL END) AS H1617BizCount, SUM(CASE WHEN HOUR(starttime) = 17 THEN duration ELSE 0 END) AS H1718BizTime, COUNT(CASE WHEN HOUR(starttime) = 17 THEN 1 ELSE NULL END) AS H1718BizCount, SUM(CASE WHEN HOUR(starttime) = 18 THEN duration ELSE 0 END) AS H1819BizTime, COUNT(CASE WHEN HOUR(starttime) = 18 THEN 1 ELSE NULL END) AS H1819BizCount, SUM(CASE WHEN HOUR(starttime) = 19 THEN duration ELSE 0 END) AS H1920BizTime, COUNT(CASE WHEN HOUR(starttime) = 19 THEN 1 ELSE NULL END) AS H1920BizCount, SUM(CASE WHEN HOUR(starttime) = 20 THEN duration ELSE 0 END) AS H2021BizTime, COUNT(CASE WHEN HOUR(starttime) = 20 THEN 1 ELSE NULL END) AS H2021BizCount, SUM(CASE WHEN HOUR(starttime) = 21 THEN duration ELSE 0 END) AS H2122BizTime, COUNT(CASE WHEN HOUR(starttime) = 21 THEN 1 ELSE NULL END) AS H2122BizCount, SUM(CASE WHEN HOUR(starttime) = 22 THEN duration ELSE 0 END) AS H2223BizTime, COUNT(CASE WHEN HOUR(starttime) = 22 THEN 1 ELSE NULL END) AS H2223BizCount, SUM(CASE WHEN HOUR(starttime) = 23 THEN duration ELSE 0 END) AS H2324BizTime, COUNT(CASE WHEN HOUR(starttime) = 23 THEN 1 ELSE NULL END) AS H2324BizCount FROM rptbiz202601 WHERE type != -1 AND DATE_FORMAT(starttime, '%Y-%m-%d') = '2026-01-01' GROUP BY serial_no, DATE_FORMAT(starttime, '%Y-%m-%d'), slot, type;
结论：从图片上能分析出，确实有个统计的sql执行很慢，查询13s才出结果，但是它执行时间间隔很大，说明问题也不是它。
2.7第七步：实时分析MySQL活动，查看当前运行的SQL
该命令类似查询当前时刻正在执行的sql
java
SHOW PROCESSLIST
重复执行了这个sql好几次，发现这条红框的每次都有它，感觉它执行的很频繁。继续执行其他命令，查看近半小时哪些sql执行的频率比较高。
java
SELECT
DIGEST_TEXT as 'SQL模板',
COUNT_STAR as '执行次数',
SUM_TIMER_WAIT/1000000000 as '总耗时(秒)',
AVG_TIMER_WAIT/1000000000 as '平均耗时(秒)',
SUM_ROWS_EXAMINED as '总检查行数',
SUM_ROWS_SENT as '总返回行数',
FIRST_SEEN as '首次出现时间',
LAST_SEEN as '最后执行时间'
FROM performance_schema.events_statements_summary_by_digest
WHERE LAST_SEEN >= NOW() - INTERVAL 30 MINUTE
AND DIGEST_TEXT IS NOT NULL
AND DIGEST_TEXT NOT LIKE '%performance_schema%'
ORDER BY COUNT_STAR DESC
LIMIT 20;
结论：从这里就发现问题就在这了，它在近半个小时执行太多次了，导致mysql服务一直卡住占用CPU，接下来就是看这个sql是哪块服务在使用。
解决方案：这块采用缓存查询，优先查询缓存，只有缓存为空情况下再去查询数据库。
最后替换jar重启服务后发现数据库CPU使用率降到20%-30%左右了，就说明问题正确解决了。