src/http/modules/ngx_http_upstream_hash_module.c:269: error: Uninitialized Value
  The value read from peer was never initialized.

src/http/modules/ngx_http_upstream_hash_module.c:269:5: 
267.     }
268. 
269.     hp->rrp.current = peer;
         ^
270. 
271.     pc->sockaddr = peer->sockaddr;
