TDV Server not able to start the services after upgradation from 706 to 708.

Lets say if the base installer was 7.0.2, the history of upgrade done earlier is 7.0.2>7.0.4>7.0.6> now they are upgrading to 7.0.6 to 7.0.8

Then you will notice below errors in the pg_upgrade_server.log:
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  pg_upgrade run on Thu Sep 20 09:39:17 2018
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command: "/apps/composite/CIS_7.0/install/pre708/repository/bin/pg_ctl" -w -l "pg_upgrade_server.log" -D "/apps/composite/CIS_7.0/install/pre708/repository/data" -o "-p 9408 -b  -c listen_addresses='' -c unix_socket_permissions=0700 -c unix_socket_directory='/apps/composite/CIS_7.0'" start >> "pg_upgrade_server.log" 2>&1
waiting for server to start....2018-09-20 09:39:17.803 UTC [  7349]FATAL:  could not open log file "../../logs/cs_repository/cs_repository-Thu.log": No such file or directory
.... stopped waiting
pg_ctl: could not start server
Examine the log output.
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  pg_upgrade run on Thu Sep 20 09:46:21 2018
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command: "/apps/composite/CIS_7.0/install/pre708/repository/bin/pg_ctl" -w -l "pg_upgrade_server.log" -D "/apps/composite/CIS_7.0/install/pre708/repository/data" -o "-p 9408 -b  -c listen_addresses='' -c unix_socket_permissions=0700 -c unix_socket_directory='/apps/composite/CIS_7.0'" start >> "pg_upgrade_server.log" 2>&1
waiting for server to start....2018-09-20 09:46:21.599 UTC [  9807]FATAL:  could not open log file "../../logs/cs_repository/cs_repository-Thu.log": No such file or directory
.... stopped waiting
pg_ctl: could not start server
Examine the log output.
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From TDV Server 7.0.2

1>  TDV Server : Stop the TDV Repository, TDV Cache and TDV Monitor processes.
2> Apply the TDV Server patch (7.0.7 or higher)

3> Edit the following file(s):
           TDV Server :
               Edit files <INSTALL_DIR>/repository/data/postgresql.conf and <INSTALL_DIR>/repository/data_cache/postgresql.conf
               Replace " log_directory = '../../logs/cs_repository'" with "log_directory = '../../logs'"
               Replace " log_directory = '../../logs/cs_data_cache' " with  "log_directory = '../../logs'"
4> UNIX and Window installations:
   Execute the 7.0.7 or higher TDV Server
              Examples:   $ cd <INSTALL_DIR>; ./bin/cis_upgrade_patch.sh (TDV upgrade) 

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