我如何找到 DB2 10.5 及更高版本中最旧的活动事务？

Question

由于 SNAPAPPL 管理视图和 SNAP_GET_APPL table 功能已弃用，在 10.5 及更高版本中，如何通过其他方式找到最旧的活动事务？

Answer 1

您可以使用以下函数获取以前由已弃用的"snap" 管理视图

提供的信息

MON_GET_TRANSACTION_LOG
MON_GET_UNIT_OF_WORK
MON_GET_DATABASE

查询可能如下所示：

select integer(mtl.applid_holding_oldest_xact)     as "Oldest Transaction",
       integer(muow.uow_log_space_used /1024 / 1024)  as "Log used(Mb)",
       integer(muow.num_locks_held)                   as "Locks Held",
       integer(muow.client_idle_wait_time)            as "Idle (seconds)",
       time(muow.uow_stop_time)                       as "UOW Stop Time",
       muow.rows_returned                             as "Rows Returned",
       muow.rows_read                                 as "Rows Read",
       integer(muow.rows_inserted)                    as "Rows Inserted",
       integer(muow.rows_updated)                     as "Rows Updated",
       integer(muow.rows_deleted)                     as "Rows Deleted"
from table(mon_get_transaction_log(-1)) mtl
     inner join
     table(mon_get_unit_of_work(null,-1)) muow
     on muow.member = mtl.member 
     and muow.application_handle = mtl.applid_holding_oldest_xact

Answer 2

正确！您可以使用 MON_GET_TRANSACTION_LOG table 函数。这是在知识中心 (link) 中找到的另一个查询：

Select MEMBER, CUR_COMMIT_DISK_LOG_READS, CURRENT_ACTIVE_LOG, 
APPLID_HOLDING_OLDEST_XACT from table(mon_get_transaction_log(-1)) as t
order by member asc

输出：

MEMBER  CUR_COMMIT_DISK_LOG_READS  CURRENT_ACTIVE_LOG  APPLID_HOLDING_OLDEST_XACT
------  -------------------------  ------------------  --------------------------
     0                       9999                   1                           7

我如何找到 DB2 10.5 及更高版本中最旧的活动事务？

How can I find the oldest active transaction in DB2 10.5 and up?

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