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
