src/http/modules/ngx_http_upstream_hash_module.c:584: error: Uninitialized Value
  The value read from best was never initialized.

src/http/modules/ngx_http_upstream_hash_module.c:584:5: 
582. found:
583. 
584.     hp->rrp.current = best;
         ^
585. 
586.     pc->sockaddr = best->sockaddr;
