前几天,一台Oracle数据库(Oracle Database 10g Release 10.2.0.4.0 - 64bit Production)监控出现"PMON failed to acquire latch, see PMON dump"错误,连接数据库出现短暂异常,告警日志中具体错误如下所示: Tue Dec 20 09:13:16 2016 PMON failed to acquire latch, see PMON dump Tue Dec 20 09:14:16 201…

把myeclipse10 按照目录完整拷贝到了另外一台电脑, 另外的目录 原安装目录 D\:\soft\i\myeclipse10 新安装目录 E\:\soft\myeclipse10 双击启动失败, 查看日志 could not find .. javax.transaction_1.1.1.v201105210645.jar ... java.lang.IllegalStateException: Unable to acquire application service. Ensure t…

删除表时遇到 ORA-00054:资源正忙,要求指定NOWAIT 错误.以前在灾备中心遇到过. 资源被锁定了,没有办法删除. 报错日志:ORA-00054: resource busy and acquire with NOWAIT specified 解决办法: 1:找出所有被锁的对象,定位出哪个回话占用 select l.session_id,o.owner,o.object_name from v$locked_object l,dba_objects o where l.object_i…

当某个数据库用户在数据库中插入.更新.删除一个表的数据,或者增加一个表的主键时或者表的索引时,常常会出现ora-00054:resource busy and acquire with nowait specified这样的错误. 主要是因为有事务正在执行(或者事务已经被锁),所有导致执行不成功. 1.用dba权限的用户查看数据库都有哪些锁 select t2.username,t2.sid,t2.serial#,t2.logon_timefrom v$locked_object t1,v$se…

Yesterday someone asked me a question can EnCase acquire data from a smartphone, and my reply was "yes". Let me show you how to use Use EnCase to acquire data from a smartphone. Of course we have to install driver on the workstation first so tha…

今天MyEclipse启动时报如下错误: !SESSION 2012-02-12 11:32:55.198 ----------------------------------------------- eclipse.buildId=unknown java.version=1.6.0_13 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=zh_CN Command…

An operation has acquire semantics if other processors will always see its effect before any subsequent operation's effect. An operation has release semantics if other processors will see every preceding operation's effect before the effect of the op…

1. truncate 表报 ORA-00054 ,标明有事务正在操作该表SQL> truncate table alldm.DM_XQKD_YUJING_D;truncate table alldm.DM_XQKD_YUJING_D *ERROR at line 1:ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired 2. 找到正在操作该表的session与sqlSQL> set line…

Forensic examiners usually acquire images from suspect's PC or Laptop. What if the target computer is not a physical PC/Laptop/Server? Let's say the target computer is one of the VMs on a server, what will you to acquire this VM? Forensic guy 008 say…

Python用上锁和解锁  lock lock.acquire lock.release 模拟抢火车票 import jsonimport timefrom multiprocessing import Process, Lock # with open('catalogue.json', 'w') as fp:# dic = {'total': 3}# json.dump(dic, fp) def check(buyers): with open('catalogue.json', mode=…