datastage 分析日志获取表记录条数

DataStage通过分析日志获取Job插入目标表的记录数

这只是一种不太好的方法，也许还有更好、更简便的方法。这种方法要求每次运行Job之前删除已有的日志信息，否则无法统计出正确的记录数。当然，在Job跑完之后，可以在shell备份本次Job运行的日志到服务器磁盘。

1       日志清理设置

登录Datastage Administrator，选择对应项目，项目属性->记录，勾选“自动清除作业日志”，设置为自动清理上次及以前的日志。

Figure 1 Administrator日志清理设置

2       日志处理

2.1     日志备份（dsjob -logsum）

在shell里用dsjob调起来Job，Job运行之后，将本次Job的日志备份到磁盘。

$DSHOME/bin/dsjob -logsum $projectName $jobName > $sysLogDir/$jobName.txt

2.2     记录数分析（grep、awk）

注意到往目标表里写记录的时候会有关键字“Number of rows inserted:”或“Number of rows rejected:”，后面跟记录的数目。考虑到可能有多个节点，因此可以将各个节点的数据都加起来。

#inserted rows

insertedRows=`cat $sysLogDir/$jobName.txt | grep "Number of rows inserted:" | awk -F: '{print $3}' | sed 's/,/''/' | awk '{sum=sum+$1;} END {print sum}'`

#rejected rows

rejectedRows=`cat $sysLogDir/$jobName.txt | grep "Number of rows rejected:" | awk -F: '{print $3}' | sed 's/,/''/' | awk '{sum1=sum1+$1;} END {print sum1}'`

         考虑到Job可能没进数就终止了，需要在接下来做处理。例如为空的话赋值0。

if [ ! -n "$insertedRows" ]; then

         insertedRows=0

fi

2.3     其他监控信息

监控可能还要些Job运行起止时间、结束状态等等，可以一并加上，然后写入一个日志文件。

其中起止时间可以在Job运行前后记录，Job的运行装可以用dsjob –run –status获取。

jobsta=$($DSHOME/bin/dsjob -run -mode NORMAL  $jobParameters  -warn 0  -jobstatus  $projectName $jobName  2>&1  | awk -F= '/^Status code/{print $2}')

2.4     Job日志记录

Job执行完毕之后，将该Job的一些监控信息写入日志。

echo $projectName $jobName $jobsta `date +%Y-%m-%d" "%H:%M:%S` $startTime $insertedRows $rejectedRows >> $logdir/job_run_` date +%Y%m%d`.log

3       其他（监控相关）

当所有的Job都执行完之后，可以建立一个Job，将记录在$logdir/job_run_` date +%Y%m%d`.log中的数据抽取到一个表，用于查看。

3.1     表设计

//日志表

create table DSLog

(

id INTEGER NOT NULL  GENERATED BY DEFAULT

    AS IDENTITY (START WITH 1, INCREMENT BY 1) primary key ,

prjName varchar (20),

jobName varchar (50),

state varchar (20),

rDate date ,

startTime time,

endTime time,

insertedRows integer,

rejectedRows integer

)

//日志状态表

create table DSLogState

(

state varchar (20),

mark varchar (50 ),

des varchar (500)

)

3.2     Job状态代码

http://publib.boulder.ibm.com/infocenter/iisinfsv/v8r7/topic/com.ibm.swg.im.iis.ds.cliapi.ref.doc/topics/r_dsvjbref_Error_Codes.html

https://www-304.ibm.com/support/docview.wss?uid=swg21469644

3.3     runJob.sh源码

#!/bin/bash

########################################

#

# runJob.sh 2012-08-19

# run a job with parameters

#

#######################################

# if the number of input parameters is less than 2,then output the help document and exit

if [ $# -lt 2 ] ; then

cat << HELP

runJob --run a job UASGE: runJob projectName jobName jobParameters

EXAMPLE: runJob dsstage1 DD_Test '-param endDT=20120819'

HELP

         exit 0

fi

projectName="$1"

jobName="$2"

jobParameters="$3"

#echo $projectName

#echo $jobName

echo $jobParameters

#exit 0

logdir=/DS/DSLogs  #directory to store logs

workdate=`date +%Y%m%d`

sysLogDir=/DS/DSLogs/sysLogsBK/`date +%Y%m%d`    #directory to back everyday datastage log.Datastage Administrator is setted to delete the logs before run a job.

#solve the problem of $DSHOME is null

source /mistel/IBM/InformationServer/Server/DSEngine/dsenv

#logdir processing.If log folder not exists,create folder.

if [ -d $logdir ]; then

         echo "$logdir is exist,continue..."

else

         echo "$logdir is not exist,creating $logdir..."

         mkdir -p $logdir

fi

#create datastage logs backup direcotry

if [ ! -d $sysLogDir ]; then

         mkdir -p $sysLogDir

fi

#job state processing.If job state is not finished ok,then reset the job

jobsta=$($DSHOME/bin/dsjob -jobinfo $projectName $jobName 2>&1 | awk -F: '/^Job Status/{print $2}')

echo 'last status: ' $jobsta

if [ "$jobsta" == " RUN FAILED (3)" -o "$jobsta" == " STOPPED (97)" ];then

         echo "Reset before run job $jobname"

         $DSHOME/bin/dsjob -run -mode RESET  $projectName $jobName   >>${logdir}/job_init_` date +%Y%m%d`.log

         sleep 5

fi

#job start run time

startTime=`date +%H:%M:%S`

#run a job

jobsta=$($DSHOME/bin/dsjob -run -mode NORMAL  $jobParameters  -warn 0  -jobstatus  $projectName $jobName  2>&1  | awk -F= '/^Status code/{print $2}')

#backup datastage logs

$DSHOME/bin/dsjob -logsum $projectName $jobName > $sysLogDir/$jobName.txt

#calculate the inserted rows and rejected rows from the back up log file

#inserted rows

insertedRows=`cat $sysLogDir/$jobName.txt | grep "Number of rows inserted:" | awk -F: '{print $3}' | sed 's/,/''/' | awk '{sum=sum+$1;} END {print sum}'`

#rejected rows

rejectedRows=`cat $sysLogDir/$jobName.txt | grep "Number of rows rejected:" | awk -F: '{print $3}' | sed 's/,/''/' | awk '{sum1=sum1+$1;} END {print sum1}'`

if [ ! -n "$insertedRows" ]; then

         insertedRows=0

fi

if [ ! -n "$rejectedRows" ]; then

         rejectedRows=0

fi

echo 'this run status code [1:Finished;2:Finished (see log);3:Aborted;97:Stopped] : ' $jobsta

#log

echo $projectName $jobName $jobsta `date +%Y-%m-%d" "%H:%M:%S` $startTime $insertedRows $rejectedRows >> $logdir/job_run_` date +%Y%m%d`.log