Oracle 使用 ass.awk 工具查看 system state dump 说明

转自http://blog.csdn.net/tianlesoftware/article/details/7237729

如果Oracle数据库hang住了，对Oracle做system dump，或做 hang analyze，是研究和解决问题的有效办法。如果能够连接数据库，并能够进行操作，那么用oradebug是简单快捷的办法。 OracleHANGANALYZE 功能诊断 DBhanginghttp://blog.csdn.net/tianlesoftware/article/details/6321961 Oracleoradebug 命令 使用说明http://blog.csdn.net/tianlesoftware/article/details/6525628  SYS@anqing1(rac1)> oradebug setmypidStatement processed.SYS@anqing1(rac1)> oradebug dump systemstate 10Statement processed.SYS@anqing1(rac1)> oradebug tracefile_name/u01/app/oracle/admin/anqing/udump/anqing1_ora_8725.trcSYS@anqing1(rac1)> oradebug close_traceStatement processed. 在系统hung的时候，systemstate基本等同于hanganalyze，可以用于诊断system hung。但是如果直接来查看这个trace file，比较麻烦，这时候可以使用ass.awk 脚本来帮助我们查看trace file。 Ass.Awk 脚本在LTOM的ltom431\ltom\tom_base\tom\src目录下，其名称是：ass109.awk。这个是目前的最新版本，ass.awk 脚本可以帮助我们分析和格式化system state dump。 LTOM的MOS说明：LTOM - TheOn-Board Monitor User Guide [ID 352363.1] LTOM 的下载地址：http://download.csdn.net/detail/tianlesoftware/4047944 在看AWK, awk是一种编程语言，用于在linux/unix下对文本和数据进行处理。数据可以来自标准输入、一个或多个文件，或其它命令的输出。 关于AWK的更多内容参考：Linux awk 命令 说明http://blog.csdn.net/tianlesoftware/article/details/6278273  我们这里使用的是AWR命令的 -fscripfile 参数，即从脚本文件中读取awk命令。这个脚本就是我们LTOM中的ass109.awk。 示例：[oracle@rac1 src]$ awk -f ass109.awk /u01/app/oracle/admin/anqing/udump/anqing1_ora_8725.trc Starting Systemstate 1...................................Ass.Awk Version 1.0.9 - Processing/u01/app/oracle/admin/anqing/udump/anqing1_ora_8725.trc System State 1~~~~~~~~~~~~~~~~1:                                     2: waiting for 'pmon timer'           wait3: waiting for 'DIAG idle wait'       wait4: waiting for 'rdbms ipc message'    wait5: waiting for 'rdbms ipc message'    wait6: waiting for 'ges remote message'   wait7: waiting for 'gcs remote message'   wait8: waiting for 'rdbms ipc message'    wait9: waiting for 'rdbms ipc message'    wait10: waiting for 'rdbms ipc message'     wait11: waiting for 'rdbms ipc message'     wait12: waiting for 'buffer busy waits'(2,89,21) wait13: waiting for 'rdbms ipc message'     wait14: waiting for 'enq: JS - queue lock'[Enqueue JS-00000000-00000001] wait15: waiting for 'buffer busy waits'(2,89,21) wait16: waiting for 'rdbms ipc message'     wait17:                                    18:                                    19: waiting for 'rdbms ipc message'     wait20: waiting for 'log file switch (archivingneeded)' wait21: waiting for 'ASM background timer'  wait22: waiting for 'rdbms ipc message'     wait23: waiting for 'log file switch (archivingneeded)' wait24: last wait for 'SQL*Net message fromclient'25: for 'Streams AQ: waiting for messagesin the queue' wait26: waiting for 'Streams AQ: qmn slave idlewait' wait27: waiting for 'rdbms ipc message'     wait28: waiting for 'rdbms ipc message'     wait29: waiting for 'class slave wait'      wait30:                                    31: waiting for 'Streams AQ: qmncoordinator idle wait' wait32: waiting for 'SQL*Net message fromclient' wait34: waiting for 'SQL*Net message fromclient' wait36: waiting for 'jobq slave wait'       wait37: for 'Streams AQ: waiting for timemanagement or cleanup tasks' waitBlockers~~~~~~~~        Above is a list of all the processes. If they are waiting for a resource       then it will be given in square brackets. Below is a summary of the       waited upon resources, together with the holder of that resource.       Notes:       ~~~~~        o A process id of '???' implies that the holder was not found in the          systemstate.                     Resource Holder StateEnqueue JS-00000000-00000001    23: waiting for 'log file switch (archivingneeded)' Object Names~~~~~~~~~~~~Enqueue JS-00000000-00000001                                   48768 Lines Processed.[oracle@rac1 src]$  这个使用ass.awk 处理之后的结果就直接查看trace 直观很多：[oracle@rac1 src]$ head -100/u01/app/oracle/admin/anqing/udump/anqing1_ora_8725.trc  /u01/app/oracle/admin/anqing/udump/anqing1_ora_8725.trcOracle Database 10g Enterprise EditionRelease 10.2.0.4.0 - ProductionWith the Partitioning, Real ApplicationClusters, OLAP, Data Miningand Real Application Testing optionsORACLE_HOME =/u01/app/oracle/product/10.2.0/db_1System name:    LinuxNode name:      rac1Release:        2.6.18-194.el5Version:        #1 SMP Tue Mar 16 21:52:43 EDT 2010Machine:       i686Instance name: anqing1Redo thread mounted by this instance: 1Oracle process number: 24Unix process pid: 8725, image: oracle@rac1(TNS V1-V3) *** 2012-02-06 20:32:20.758*** ACTION NAME:() 2012-02-06 20:32:20.755*** MODULE NAME:(sqlplus@rac1 (TNS V1-V3))2012-02-06 20:32:20.755*** SERVICE NAME:(SYS$USERS) 2012-02-0620:32:20.755*** SESSION ID:(118.34295) 2012-02-0620:32:20.755===================================================SYSTEM STATE------------System global information:    processes: base 0x30e0ec78, size 150, cleanup 0x30e1dff8    allocation: free sessions 0x30e5a6c4, free calls (nil)    control alloc errors: 0 (process), 0 (session), 0 (call)    PMON latch cleanup depth: 0    seconds since PMON's last scan for dead processes: 64    system statistics:313621 logons cumulative30 logons current14842838 opened cursors cumulative….     -------------------------------------------------------------------------------------------------------