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https://blogs.sap.com/2016/04/09/sap-data-services-42-sp6-patch-2-upgrade-steps/
https://blogs.sap.com/2017/09/10/sap-data-services-4.2-sp9-upgrade-steps/
https://help.sap.com/doc/59ef6ef670814522880e752d7e0a1213/4.2.11/en-US/ds_4211_relnotes_en.pdf
https://archive.sap.com/discussions/thread/3382740
https://community.hortonworks.com/questions/149099/service-startstop-process-hangs-on-ambari.html
https://www.easeus.com/todo-backup-resource/fix-windows-10-stuck-at-login-screen-with-spinning-circle.html
https://social.technet.microsoft.com/Forums/windows/en-US/f3beb19c-b83d-422e-ba53-12eb4df81179/boot-up-hangs-at-quotplease-waitquot-for-quoteverquot-nla-service-is-culprit?forum=itprovistanetworking
https://access.redhat.com/discussions/732093
http://jp.fujitsu.com/platform/server/sparc/manual/en/c120-e679/14.2.6.html
https://p5.archiware.com/sites/p5/files/atoms/files/P5Manual5.5_EN.pdf
https://www.pbsworks.com/pdfs/PBSReleaseNotesBinary18.2.1.pdf
https://dev.mysql.com/doc/refman/5.7/en/load-data.html
https://packages.ubuntu.com/xenial/admin/