While executing pg_start_backup function in postgres 9.6 DB I am getting below warning
select pg_start_backup(to_char(now(), 'yyyy-mm-dd hh24:mi:ss')); -
WARNING: could not read symbolic link "pg_tblspc/oth_data_tbs": Invalid argument
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WARNING: could not read symbolic link "pg_tblspc/str_index": Invalid argument
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WARNING: could not read symbolic link "pg_tblspc/tbs_temp_default": Invalid argument
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WARNING: could not read symbolic link "pg_tblspc/oth_indx_tbs": Invalid argument
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WARNING: could not read symbolic link "pg_tblspc/str_data_ids": Invalid argument
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WARNING: could not read symbolic link "pg_tblspc/tbs_default": Invalid argument
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pg_start_backup
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5/E0000028
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(1 row)