title: pgpool second standby shows "down" in status
body: <p>I have setup pgpool with 3 nodes. Lets say node1 as primary and node2,node3 and secondary. When I stop the database service on node1, the node2 becomes primary as expected but node3 is being shown as "down" in <strong>show pool_nodes</strong> command. It is showing that streaming is live on node3 and I can connect to psql as well on node3 but status is down in pgpool</p>
  
  <pre><code>Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
      2020-05-07 05:58:39.969 EDT [23820] LOG:  record with incorrect prev-link 0/7D000028 at 0/81000060
      2020-05-07 05:58:39.976 EDT [25653] FATAL:  could not connect to the primary server: could not connect to server: Connection refused
                      Is the server running on host "node1" (10.32.5.121) and accepting
                      TCP/IP connections on port 5432?
      Permission denied, please try again.
      Permission denied, please try again.
  
  
      2020-05-13 08:02:45.738 EDT [3159] ERROR:  pgpool_remote_start failed
      2020-05-13 08:02:45.738 EDT [3159] STATEMENT:  SELECT pgpool_remote_start('node3', '/var/lib/pgsql/11/data')
      2020-05-13 08:03:37.917 EDT [3032] LOG:  unexpected EOF on standby connection
  </code></pre>
  
  <p>On executing pcp_recovery_node command, the following error occassionally occurs but node recovers with same command after 1 or 2 more retries</p>
  
  <pre><code>ERROR:  executing remote start failed with error: "ERROR:  pgpool_remote_start failed
  </code></pre>
  
  <p>I then have to attach the node with pcp_attach_node to change status to "up"</p>