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pg_start_backup throws warning:could not read symbolic link

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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'));
Expand|Select|Wrap|Line Numbers
  1. WARNING:  could not read symbolic link "pg_tblspc/oth_data_tbs": Invalid argument
  2. WARNING:  could not read symbolic link "pg_tblspc/str_index": Invalid argument
  3. WARNING:  could not read symbolic link "pg_tblspc/tbs_temp_default": Invalid argument
  4. WARNING:  could not read symbolic link "pg_tblspc/oth_indx_tbs": Invalid argument
  5. WARNING:  could not read symbolic link "pg_tblspc/str_data_ids": Invalid argument
  6. WARNING:  could not read symbolic link "pg_tblspc/tbs_default": Invalid argument
  7.  pg_start_backup
  8. -----------------
  9.  5/E0000028
  10. (1 row)
Dec 22 '20 #1
1 2172
9,065 Recognized Expert Moderator Expert
A quick Google suggests your data directory is corrupt and that you should rebuild your database cleanly; full answer here
Dec 22 '20 #2

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