CICS維護(hù)培訓(xùn).ppt

1、TXSeries(CICS) 培訓(xùn),IBM Software 事務(wù)處理中間件,Agenda 日程安排,Know-Hows 基本概念回顧 CICS概念與原理 CICS安裝與配置 How-Tos 常見問題分析 CICS運(yùn)行與監(jiān)控 CICS性能調(diào)整 CICS問題診斷 Q it consists of: program counter register set stack space A thread shares with its peer threads its: code section data section operating-system resources collectively k

2、nown as a task. A traditional or heavyweight process is equal to a task with one thread.,共享內(nèi)存,信號(hào)量與消息隊(duì)列,ipcs ipcrm,AIX,topas,Tpis,Clean Library Cache on AIX slibclean,CICS,Performance Tuning 性能調(diào)整,Performance,Throughput 吞吐量 Throughput is a measure of the amount of work performed by a computer system o

3、ver a period of time. Ex. database transactions per minute, web server hits per minute, disk I/O requests per second, . Response Time 響應(yīng)時(shí)間 Response time is the elapsed time between the end of an inquiry ordemand on a computer system and the beginning of a response.,Which Part?,? OS ? CICS ? DB ? App

4、lication,OS,Main Memory Disk Paths & Devices Volume & File Placement Network Characteristics Processor Speed/Capacity,Unix Commands,vmstatglobal processor usage ps auxcpu by process iostatglobal disk activity filemonspecific disk activity netstatnetwork statistics sarsystem activity reports tprofdet

5、ailed address reference profiling cicstracedetailed event trace iptrace detailed TCP/IP trace timetime a specific command rmsssqueeze real memory monitorbasic statistics (),AIX,Adequate memory & swap space Logical volume placement,CICS,Min/Max Application Servers Client Proces

6、sing Pseudo Conversational Pgms Shared Application Text DCE Protection Levels Class Max Tasks Dynamic TR/DPL Routing,Min/Max Application Servers,l = ts * ta 平均交易時(shí)間 交易到達(dá)率 1035 Oracle/sessions,Class Max Tasks,Transaction Class (1-10) TD中定義 ClassMaxTask(RD) 同時(shí)執(zhí)行的最大交易數(shù) ClassMaxTaskLim(RD) 最大排隊(duì)長(zhǎng)度,DB,Data

7、base Optimization Tablespace Placement Lock patch,Performance Tuning Flowchart,CICS,Problem Determination 問題診斷,事故處理流程,保留事故現(xiàn)場(chǎng) 分析問題原因 提出問題解決方案 測(cè)試 實(shí)施與回退,保留現(xiàn)場(chǎng)1,1 記錄進(jìn)程狀態(tài) ps -ef ps.out 2 記錄機(jī)器運(yùn)行狀態(tài) vmstat 2 vmstat.out 3 記錄網(wǎng)絡(luò)連接狀態(tài) netstat -a | grep sbs netstat.out 4 記錄DCE運(yùn)行狀態(tài) rpccp show mapping rpc.out,保留現(xiàn)場(chǎng)2,

8、5 嘗試在主服務(wù)器上登錄CICS服務(wù)器 cicsterm -r BOCSBS 如果登錄嘗試失敗，記錄錯(cuò)誤信息或現(xiàn)象 如果登錄嘗試成功，在CICS終端界面內(nèi)執(zhí)行以下操作 6 檢查當(dāng)前連接終端狀態(tài) CEMT I TERM 把輸出信息記錄在文本文件term.out中 7 檢查當(dāng)前運(yùn)行任務(wù)狀態(tài) CEMT I TASK 把輸出信息記錄在文本文件task.out中,保留現(xiàn)場(chǎng)3,8 產(chǎn)生CICS系統(tǒng)狀態(tài)記錄（DUMP） CEMT PERFORM SNAP 格式化DUMP文件（設(shè)DUMP文件名為SYSA0001.*） ： cicsdfmt SYSA0001 dump.out 9 在前置機(jī)上嘗試登錄CICS服務(wù)

9、器,如果失敗,記錄錯(cuò)誤信息或現(xiàn)象。 10 記錄可能發(fā)生問題的CICS進(jìn)程狀態(tài)： showProcInfo pid pid.out,保留現(xiàn)場(chǎng)4,11 重新啟動(dòng)CICS服務(wù)器前保留以下日志文件： /nacs/tmp/xa_NULL?.trc (?為當(dāng)前日期) /var/cics_regions/BOCSBS/console.* /var/cics_regions/BOCSBS/symrecs.* /var/cics_regions/BOCSBS/data/CCIN.out /var/cics_regions/BOCSBS/data/CSMT.out,保留現(xiàn)場(chǎng)5,12 如果發(fā)生故障期間在/var/c

10、ics_regions/BOCSBS/dumps/dir1目錄下產(chǎn)生了其他錯(cuò)誤記錄文件，執(zhí)行以下操作： DUMP文件 ， 指在console文件中顯示由CICS自動(dòng)產(chǎn)生的DUMP文件，用cicsdfmt工具格式化，方法與步驟7類似。 Encina Buffer trace 文件， 用interpretTrace工具格式化并保留下來： interpretTrace BufferTrace.out,分析問題原因,收集相關(guān)信息 CICS OS AIX: errpt Oracle,CICS Error Messages,CICS Trace,Region Definition Traceall | none | partial TraceModuleslist ExternalTraceyes | no TraceFileA/path/file TraceFileB/path/file TraceFileSize16M SysTraceBufferSize16K UserTraceDirectory/path PublicUserTraceFi