db2 "create event monitor lockevmon for locking write to unformatted event table (table locks)" --DB2 9.7及之后 然后通过db2evmon工具可以获得死锁信息的日志: db2evmon –path /home/db2inst1/deadlock > deadlock.txt 分析输出文件deadlock.txt ---查看锁表: 方法一: db2 "SELECT * FROM TABLE( ...
修改Lock timeout (-1代表不检测锁超时),一般来说,该参数默认为10s足矣。 当系统存在严重的锁等待时,可以通过以下sql,定位到锁等待Sql db2 "select AGENT_ID ,substr(STMT_TEXT,1,100) as statement,STMT_ELAPSED_TIME_MS from table(SNAPSHOT_STATEMENT('dbname',-1)) as B where AGENT_ID in (select ...
AI代码解释 $ db2getdb cfg|grep-i lock Max storageforlocklist(4KB)(LOCKLIST)=200000Percent.oflock lists perapplication(MAXLOCKS)=60Intervalforcheckingdeadlock(ms)(DLCHKTIME)=10000Locktimeout(sec)(LOCKTIMEOUT)=120Block log on diskfull(BLK_LOG_DSK_FUL)=NOBlock non loggedoperations(BLOCKNONLOGGE...
在锁状态列(Lock Status)中,除一个锁外,所有锁都处于已授权状态(Granted status):“-”状态的锁是阻塞的锁。在锁模式列(Lock Mode)中,显示了包括请求的锁模式(S)和正在保持的锁(IX)等。 图11.锁等待–Table name 如图11所示,在这个特别的例子里,代理24正试图请求表TAOEWANG.T1的S锁,可它已被持有TAOEW...
TABLE DFT_MON_TABLE Measure of activity (rows read/written) UOW DFT_MON_UOW Start/end times, completion status TIMESTAMP DFT_MON_TIMESTAMP Timestamps 为了观察快照中的锁和执行语句情况,一般把LOCK和STATEMENT选项设为ON,也可以酌情把其他开关打开,示例如下: db2 update monitor switches using lock on ...
SQL0911N The current transaction has been rolled back because of a deadlock ortimeout. Reason code "68". SQLSTATE=40001 $ db2 "delete from student where age=2" DB21034E The command was processed as an SQL statement because it was not a ...
iLockWithForce 輸入。 布林旗標。 如果設為TRUE,則載入將視需要強制其他應用程式,以確保它立即取得表格鎖定。 此選項需要與FORCE APPLICATIONS指令 (SYSADM 或 SYSCTRL) 相同的權限。 SQLU_ALLOW_NO_ACCESS 載入可能會在載入作業開始時強制衝突的應用程式。 在載入開始時,公用程式可能會強制嘗試查詢或修改表格的應...
$ db2 get db cfg|grep -i lock Max storage for lock list (4KB) (LOCKLIST) = 200000 Percent. of lock lists per application (MAXLOCKS) = 60 Interval for checking deadlock (ms) (DLCHKTIME) = 10000 Lock timeout (sec) (LOCKTIMEOUT) = 120 ...
MAXPAGES: (Maximum pages for prefetch) ALL PREFETCH: (Type of Prefetch) SEQUENTIAL ROWLOCK : (Row Lock intent) NEXT KEY SHARE SCANDIR : (Scan Direction) FORWARD TABLOCK : (Table Lock intent) INTENT SHARE TBISOLVL: (Table access Isolation Level) ...
EDUNAME: db2redom (HADRDB)FUNCTION: DB2 UDB, lock manager, sqlplWaitOnWP, probe:1370DATA #1 : <preformatted>Forcing application which conflicts with HADR log replay.Workstation Location: testserver2Application Name : db2bpApplication ID : *LOCAL.qinling.181202094843lockname : 0000050007001...