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2016-03-24

couldn't agree more ...


Systems are for people. People need to be on board
It doesn't matter whether the system is the best or the second best (if the difference is not major), whether it is on-premise or in the cloud (if it meets other requirements of course). But, what is extremely important is whether its users embrace it or not. Getting the users on board is the most important goal when implementing a new IT solution. If the users don't really believe in the system and hate to use it, then the whole IT investment is a waste of money and will only consume more time and energy of the workforce and deliver poor or negative ROI, because people will only use it as a necessary evil and will try to avoid it. I've seen it many times.
source:
http://seekingalpha.com/article/3960536-workday-solving-peoples-problems-oracle-systems


netezza cheat sheet

netezza cheat sheet
#File:netezza-cheat-sheet.sh  v1.3.0
 
# how-to loop trough tuple cells of an result set 
for grp in `nzsql -q -r -t -c "SELECT GROUPNAME FROM _V_GROUP;"`; do nzsql -c "\dpg $grp" ; done | less
 
# how-to get help
command -h
# how-to get commands' help
commmand -hc
# how-to create an user
nzpassword add -u username -pw password -host hostname
 
#how-to export sql result set into a file
nzsql -F ";" -d $db_name -c "SELECT * FROM $table WHERE 1=1 AND LOAD_TM > to_date ( '2013-04-16 00:00:00' , 'YYYY-MM-DD HH24:MI:SS') ORDER BY LOAD_TM DESC ;" -o /tmp/data/tmp.txt
 
nzsql -F " " -d SYSTEM -c "SELECT HW_HWID FROM SYSTEM.._V_SPU ;"
 
# how-to restore a db without the data
nzrestore -db DbNameToRestore -sourcedb BackUpSetDatabaseName -increment 3 -schema-only -dir /backup2
 
#drop session on some criteria ( use grep for filtering )
nzsession | grep idle | awk '/idle/ {print "nzsession abort -force -id "$1}' > /tmp/drop_sessions.sh
 
# show the disk usage
nzds show -detail | perl -ne 'split /\s+/;print $_[9] ." " ; print $_  ' | sort -nr
 
#backup
#where are stored the log files of the backup scripts
/export/home/nz/BackupScripts/log
 
#how-to view the latest 4 differential backups
for file in `ls -t1 /export/home/nz/BackupScripts/log/RunBackUpDiff* | head -n 4` ; do cat $file ; done ;
 
#how-to view the latest 10 backup files starting with the newest on top
ls -alt --time-style=long-iso /export/home/nz/BackupScripts/log/* | head -n 10
 
#how-to create an repot of the db and table sizes
sh /nz/support/nz_db_size >> /export/home/nz/Logs/nz-dbs-tables-sizes-report.txt
 
# how-to kill idle sessions
nzsession | grep SLOW_READER_ACCOUNT | awk '/idle/ {print "nzsession abort -force -id "$1}' > drop_sessions.sh
 
# check the swap space usage
/nz/kit/bin/nzstats -type spu
 
# show sub command help
/nz/kit/bin/nzstats -hc show
 
# check the number of active users per database
/nz/kit/bin/nzstats show -type database
 
/nz/support-TwinFin-5.0-100107-1556/bin/nz_view_references -h
 
nzhw -detail -type SPU
 
#how-to find out what where has been backed up
for i in {1..4}; do find "/backup${i}" -maxdepth 3 -mindepth 3 ; done ;
 
#check the exact errors from the last 1000 backup logs
for file in `ls -lrt /nz/kit.7.0.P4/log/backupsvr/*.log | perl -ne 'split /\s+/;print $_[8]."\n"' | tail -1000` ; do grep -nH Error $file ; done ;
 
 
#how-to check from odbc.ini the name of the db by the connection string
export IniFile=/informatica/9.1.0/ODBC6.1/odbc.ini
export IniSection=nz_etl_test
sed -e 's/[[:space:]]*\=[[:space:]]*/=/g' \
      -e 's/;.*$//' \
      -e 's/[[:space:]]*$//' \
      -e 's/^[[:space:]]*//' \
      -e "s/^\(.*\)=\([^\"']*\)$/\1=\"\2\"/" \
      < $IniFile \
      | sed -n -e "/^\[$IniSection\]/,/^\s*\[/{/^[^;].*\=.*/p;}" | grep -i database
 
#how-to search for "broken" views which need to be recreated
/nz/support-TwinFin-5.0-100107-1556/bin/nz_view_references
/nz/support/bin/nz_view_references
 
#how-to show the number of active users per db
/nz/kit/bin/nzstats -type database | sort -n -k8
 
 
#how-to check current system sfw version and revision
nzrev; nz_stats
 
 
#how-to check the current version of the netezza support scripts
nz_help -version
 
# show the utilization of the components
nzsqa proctbl -all | grep -i util
 
#how-to show hardware issues
nzhw show -issues
 
#important paths
#where are the netezza cli binaries
/nz/support/bin/
/nz/kit/bin/
/nz/kit/bin/adm/
 
#important logs
/var/log/nz/heartbeat_admin.log
/nz/kit.7.0.P4/log/postgres/pg.log
 
#important conf files
/etc/ha.d/ha.cf
 
# check the clustering and resource group status on NPS
crm_mon -i5
 
# report db sizes on
nz_db_size -summary
 
#how-to check for locks on netezza tables
nzsql -F ";" -d $db_name -c "SELECT * FROM _T_PG_LOCKS;" -a | grep -i TERRA
 
# how-to check which tables do need grooming
perl /nz/kit.7.0.P4/bin/adm/tools/cbts_needing_groom -db TERRA_STG_PROD
 
# now-to check for hanging sessoins
export db_name=SYSTEM;nzsql -F ";" -d $db_name -c " select q.qs_planid, q.qs_sessionid, q.qs_clientid, s.dbname, s.username, q.qs_cliipaddr,
 q.qs_state, q.qs_tsubmit, q.qs_tstart, case when q.qs_tstart = 'epoch' then '0' else abstime 'now' - q.qs_tstart end,
initcap(q.qs_pritxt), case when qs_estcost >= 0 then ltrim(to_char(cast(qs_estcost as float)/1000,'99999999999999999.999'))
else ltrim(to_char(cast((18446744073709551616 + qs_estcost) as float)/1000, '99999999999999999.999')) end,
q.qs_estdisk, q.qs_estmem, q.qs_snippets, q.qs_cursnipt, q.qs_resrows, q.qs_resbytes , q.qs_sql from _v_qrystat q, _v_session s
where 1=1 and q.qs_sessionid = s.id and q.QS_STATE not in ( 2,3);" -a
 
 
 
# find out the heaviest queries today
export db_name=SYSTEM;nzsql -F ";" -d $db_name -c " SELECT * FROM _V_QRYHIST
where 1=1 AND QH_TSUBMIT > CURRENT_DATE ORDER BY QH_ESTCOST ASC" -a
 
export db_name=SYSTEM;
#how-to list the columns of a table
export sql=" SELECT ' , ' || NAME || '.' || ATTNAME  from _V_RELATION_COLUMN WHERE 1=1
AND NAME LIKE 'DIM_PAYER_ADDRESS'
ORDER BY NAME , ATTNUM
;";
 
nzsql -F ";" -d $db_name -c "$sql" -a
 
 
#how-to export a list of netezza tables into csv files :
export db_name=SET_HERE_YOUR_DB_NAME
export schema_owner=SET_HERE_YOUR_SCHEMA_OWNER
 
 
for table in `echo table_name1 table_name2 `; do (nzsql -F ";" -d $db_name -c "SELECT * FROM $db_name.$schema_owner.$table" -A -q -o /tmp/$db_name.$table.csv.tmp ) ; head --lines=-1 /tmp/$db_name.$table.csv.tmp > /tmp/$db_name.$table.csv; rm -fv /tmp/$db_name.$table.csv.tmp ; done ;
 
 
 
nz_responders
 
#
# Purpose:
# To provide a simple cheat sheet for netezza administration and command line utilities
 
# eof file: netezza-cheat-sheet.sh

the type of error messages you don't want to show your Customers

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