DB2查看执行过长的SQL
2024-06-09 03:30:14
朋友遇到一个DB2问题，DB2占用了大量的临时表空间，db2pd -d testdb -act发现有大量的SQL长时间运行，为了测试该问题，写了一个简单的处理问题的流程。
1.创建测试表
https://www.cndba.cn/hbhe0316/article/4916
CREATE TABLE
FUND_DAILY_INCOME
(
ID BIGINT NOT NULL GENERATED ALWAYS AS IDENTITY,
ACCOUNT_NO VARCHAR(32),
CREATED_TIME TIMESTAMP,
FUND_CODE VARCHAR(8),
SHARE_HOLDING VARCHAR(15),
INCOME_DATE VARCHAR(10),
INCOME_AMOUNT BIGINT,
MERGE_FLAG VARCHAR(1),
OFFSET_FLAG VARCHAR(1),
UPDATE_TIME TIMESTAMP,
COMPANY_CODE VARCHAR(16),
ALL_INCOME DECIMAL(19,0) DEFAULT 0,
HOLDING_INCOME DECIMAL(19,0) DEFAULT 0,
PLAT_ID BIGINT DEFAULT 10000,
SERVICE_TYPE VARCHAR(2) DEFAULT '01',
SERVICE_CODE VARCHAR(32) DEFAULT '10000',
PRIMARY KEY (ID)
);2.创建测试存储过程
https://www.cndba.cn/hbhe0316/article/4916
https://www.cndba.cn/hbhe0316/article/4916https://www.cndba.cn/hbhe0316/article/4916
[db2inst1@node02 ~]$ db2 -td@ -vf 1.sql
[db2inst1@node02 ~]$ cat 1.sql
BEGIN
DECLARE v_date date;
DECLARE v_date_str varchar(20);
DECLARE str varchar(20);
DECLARE i INTEGER;
DECLARE val INTEGER;
declare sqlStr varchar(1000);
set v_date = to_date( '2014-01-01' ,'yyyy-mm-dd');
set v_date_str = to_char( v_date ,'yyyy-mm-dd') ;
REPEAT
set i = 1 ;
REPEAT
SET sqlStr =' INSERT INTO FUND_DAILY_INCOME ( ACCOUNT_NO, CREATED_TIME, FUND_CODE, SHARE_HOLDING, INCOME_DATE, INCOME_AMOUNT, MERGE_FLAG, OFFSET_FLAG, UPDATE_TIME, COMPANY_CODE ) VALUES '
|| ' ( ''1'', current timestamp , ''1'', ''1'', '''|| v_date_str ||''' , 0, ''1'', ''1'', current timestamp , ''1'' ) ';
EXECUTE IMMEDIATE sqlStr;
set i = i +1;
UNTIL ( i > 1010000000)
END REPEAT;
set v_date = v_date +1 day;
set v_date_str = to_char( v_date ,'yyyy-mm-dd');
set str = to_char( v_date ,'yyyymmdd');
set val = integer(str);
UNTIL ( val > 20150101)
END REPEAT;
END
@3.查看正在执行的SQLhttps://www.cndba.cn/hbhe0316/article/4916
[db2inst1@node02 ~]$ db2pd -d testdb -act
Database Member 0 -- Database TESTDB -- Active -- Up 0 days 00:34:45 -- Date 2021-10-12-16.32.27.821453
Active Statement List:
Address AppHandl [nod-index] UOW-ID StmtID AnchID StmtUID EffISO EffLockTOut EffDegree EntryTime StartTime LastRefTime
0x00007FCBE1F7BC20 7 [000-00007] 58 90956 573 2 1 -1 1 Tue Oct 12 16:32:27 Tue Oct 12 16:32:27 Tue Oct 12 16:32:27
0x00007FCBE1F7F6C0 7 [000-00007] 58 1 931 1 1 -1 1 Tue Oct 12 16:32:20 Tue Oct 12 16:32:20 Tue Oct 12 16:32:204.查看agentid为7的SQL
[db2inst1@node02 ~]$ db2 get snapshot for application agentid 7
Application Snapshot
Application handle = 7
Application status = UOW Waiting
Status change time = Not Collected
Application code page = 1208
Application country/region code = 1
DUOW correlation token = *LOCAL.db2inst1.211012075742
Application name = db2bp
Application ID = *LOCAL.db2inst1.211012075742
Sequence number = 00059
TP Monitor client user ID =
TP Monitor client workstation name =
TP Monitor client application name = CLP 1.sql
TP Monitor client accounting string =
Connection request start timestamp = 10/12/2021 15:57:42.602917
Connect request completion timestamp = 10/12/2021 15:57:43.809901
Application idle time = Not Collected
CONNECT Authorization ID = DB2INST1
Client login ID = db2inst1
Configuration NNAME of client = node02
Client database manager product ID = SQL11014
Process ID of client application = 4224
Platform of client application = LINUXAMD64
Communication protocol of client = Local Client
Inbound communication address = *LOCAL.db2inst1
Database name = TESTDB
Database path = /db2data/db2inst1/NODE0000/SQL00001/MEMBER0000/
Client database alias = TESTDB
Input database alias =
Last reset timestamp =
Snapshot timestamp = 10/12/2021 16:32:44.043410
Authorization level granted =
User authority:
DBADM authority
SECADM authority
DATAACCESS authority
ACCESSCTRL authority
Group authority:
SYSADM authority
CREATETAB authority
BINDADD authority
CONNECT authority
IMPLICIT_SCHEMA authority
Coordinator member number = 0
Current member number = 0
Coordinator agent process or thread ID = 23
Current Workload ID = 1
Agents stolen = 0
Agents waiting on locks = 0
Maximum associated agents = 1
Priority at which application agents work = 0
Priority type = Dynamic
Lock timeout (seconds) = -1
Locks held by application = 0
Lock waits since connect = 0
Time application waited on locks (ms) = Not Collected
Deadlocks detected = Not Collected
Lock escalations = 0
Exclusive lock escalations = 0
Number of Lock Timeouts since connected = 0
Total time UOW waited on locks (ms) = Not Collected
Total sorts = 0
Total sort time (ms) = Not Collected
Total sort overflows = 0
Buffer pool data logical reads = Not Collected
Buffer pool data physical reads = Not Collected
Buffer pool temporary data logical reads = Not Collected
Buffer pool temporary data physical reads = Not Collected
Buffer pool data writes = Not Collected
Buffer pool index logical reads = Not Collected
Buffer pool index physical reads = Not Collected
Buffer pool temporary index logical reads = Not Collected
Buffer pool temporary index physical reads = Not Collected
Buffer pool index writes = Not Collected
Buffer pool xda logical reads = Not Collected
Buffer pool xda physical reads = Not Collected
Buffer pool temporary xda logical reads = Not Collected
Buffer pool temporary xda physical reads = Not Collected
Buffer pool xda writes = Not Collected
Total buffer pool read time (milliseconds) = Not Collected
Total buffer pool write time (milliseconds)= Not Collected
Time waited for prefetch (ms) = Not Collected
Unread prefetch pages = Not Collected
Direct reads = Not Collected
Direct writes = Not Collected
Direct read requests = Not Collected
Direct write requests = Not Collected
Direct reads elapsed time (ms) = Not Collected
Direct write elapsed time (ms) = Not Collected
Number of SQL requests since last commit = 0
Commit statements = 3
Rollback statements = 55
Dynamic SQL statements attempted = 236518
Static SQL statements attempted = 58
Failed statement operations = 56
Select SQL statements executed = 1
Xquery statements executed = 0
Update/Insert/Delete statements executed = 236460
DDL statements executed = 1
Inactive stmt history memory usage (bytes) = 0
Internal automatic rebinds = 0
Internal rows deleted = 0
Internal rows inserted = 0
Internal rows updated = 0
Internal commits = 1
Internal rollbacks = 0
Internal rollbacks due to deadlock = 0
Binds/precompiles attempted = 0
Rows deleted = 0
Rows inserted = 236459
Rows updated = 0
Rows selected = 1
Rows read = 12537
Rows written = 236466
UOW log space used (Bytes) = Not Collected
Previous UOW completion timestamp = Not Collected
Elapsed time of last completed uow (sec.ms)= Not Collected
UOW start timestamp = Not Collected
UOW stop timestamp = Not Collected
UOW completion status = Not Collected
Open remote cursors = 0
Open remote cursors with blocking = 0
Rejected Block Remote Cursor requests = 0
Accepted Block Remote Cursor requests = 1
Open local cursors = 0
Open local cursors with blocking = 0
Total User CPU Time used by agent (s) = 4.522643
Total System CPU Time used by agent (s) = 0.000000
Host execution elapsed time = Not Collected
Package cache lookups = 236521
Package cache inserts = 374
Application section lookups = 474448
Application section inserts = 371
Catalog cache lookups = 3363
Catalog cache inserts = 42
Catalog cache overflows = 0
Catalog cache high water mark = 0
Workspace Information
Most recent operation = Static Rollback
Most recent operation start timestamp = Not Collected
Most recent operation stop timestamp = Not Collected
Agents associated with the application = 1
Number of hash joins = 0
Number of hash loops = 0
Number of hash join overflows = 0
Number of small hash join overflows = 0
Number of OLAP functions = 0
Number of OLAP function overflows = 0
Memory usage for application:
Memory Pool Type = Application Heap
Current size (bytes) = 262144
High water mark (bytes) = 262144
Configured size (bytes) = 1048576
Agent process/thread ID = 23
Agent Lock timeout (seconds) = -1
Memory usage for agent:
Memory Pool Type = Other Memory
Current size (bytes) = 327680
High water mark (bytes) = 655360
Configured size (bytes) = 166562897926.收集快照https://www.cndba.cn/hbhe0316/article/4916
https://www.cndba.cn/hbhe0316/article/4916
https://www.cndba.cn/hbhe0316/article/4916
https://www.cndba.cn/hbhe0316/article/4916
[db2inst1@node02 ~]$ db2 get snapshot for all on testdb > /tmp/1.out
查看里面的内容
Application handle = 7
Application status = UOW Executing
Status change time = Not Collected
Application code page = 1208
Application country/region code = 1
DUOW correlation token = *LOCAL.db2inst1.211012084818
Application name = db2bp
Application ID = *LOCAL.db2inst1.211012084818
Sequence number = 00002
TP Monitor client user ID =
TP Monitor client workstation name =
TP Monitor client application name = CLP 1.sql
TP Monitor client accounting string =7.force掉该agentidhttps://www.cndba.cn/hbhe0316/article/4916
[db2inst1@node02 ~]$ db2 "force application (7)"
DB20000I The FORCE APPLICATION command completed successfully.
DB21024I This command is asynchronous and may not be effective immediately.
[db2inst1@node02 ~]$ db2 terminate
DB20000I The TERMINATE command completed successfully.版权声明：本文为博主原创文章，未经博主允许不得转载。
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