[2018-08-14 12:05:53.255283] W [MSGID: 101174] [graph.c:363:_log_if_unknown_option] 0-gv1-readdir-ahead: option 'parallel-readdir' is not recognized
[2018-08-14 12:05:53.255480] I [MSGID: 104045] [glfs-master.c:91:notify] 0-gfapi: New graph 70687973-696e-6672-612d-6862312e7863 (0) coming up
[2018-08-14 12:05:53.255505] I [MSGID: 114020] [client.c:2360:notify] 0-gv1-client-0: parent translators are ready, attempting connect on transport
[2018-08-14 12:05:53.255958] I [MSGID: 114020] [client.c:2360:notify] 0-gv1-client-1: parent translators are ready, attempting connect on transport
Final graph:
+------------------------------------------------------------------------------+
  1: volume gv1-client-0
  2:     type protocol/client
  3:     option ping-timeout 42
  4:     option remote-host 172.xx.xx.xx
  5:     option remote-subvolume /mnt/brick1/gv1
  6:     option transport-type socket
  7:     option transport.address-family inet
  8:     option username xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  9:     option password xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
 10:     option transport.tcp-user-timeout 0
 11:     option transport.socket.keepalive-time 20
 12:     option transport.socket.keepalive-interval 2
 13:     option transport.socket.keepalive-count 9
 14:     option send-gids true
 15: end-volume
 16:
 17: volume gv1-client-1
 18:     type protocol/client
 19:     option ping-timeout 42
 20:     option remote-host 172.xx.xx.xy
 21:     option remote-subvolume /mnt/brick1/gv1
 22:     option transport-type socket
 23:     option transport.address-family inet
 24:     option username xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
 25:     option password xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
 26:     option transport.tcp-user-timeout 0
 27:     option transport.socket.keepalive-time 20
 28:     option transport.socket.keepalive-interval 2
[2018-08-14 12:05:53.256141] I [rpc-clnt.c:1986:rpc_clnt_reconfig] 0-gv1-client-0: changing port to 49152 (from 0)
 29:     option transport.socket.keepalive-count 9
 30:     option send-gids true
 31: end-volume
 32:
 33: volume gv1-replicate-0
 34:     type cluster/replicate
 35:     option background-self-heal-count 0
 36:     option afr-pending-xattr gv1-client-0,gv1-client-1
 37:     option use-compound-fops off
 38:     subvolumes gv1-client-0 gv1-client-1
 39: end-volume
 40:
 41: volume gv1-dht
 42:     type cluster/distribute
 43:     option lock-migration off
 44:     subvolumes gv1-replicate-0
 45: end-volume
 46:
 47: volume gv1-write-behind
 48:     type performance/write-behind
 49:     subvolumes gv1-dht
 50: end-volume
 51:
 52: volume gv1-read-ahead
 53:     type performance/read-ahead
 54:     subvolumes gv1-write-behind
 55: end-volume
 56:
 57: volume gv1-readdir-ahead
 58:     type performance/readdir-ahead
 59:     option parallel-readdir off
 60:     option rda-request-size 131072
 61:     option rda-cache-limit 10MB
 62:     subvolumes gv1-read-ahead
 63: end-volume
 64:
 65: volume gv1-io-cache
 66:     type performance/io-cache
 67:     subvolumes gv1-readdir-ahead
 68: end-volume
 69:
 70: volume gv1-quick-read
 71:     type performance/quick-read
 72:     subvolumes gv1-io-cache
 73: end-volume
 74:
 75: volume gv1-open-behind
 76:     type performance/open-behind
 77:     subvolumes gv1-quick-read
 78: end-volume
 79:
 80: volume gv1-md-cache
 81:     type performance/md-cache
 82:     subvolumes gv1-open-behind
 83: end-volume
 84:
 85: volume gv1-io-threads
 86:     type performance/io-threads
 87:     subvolumes gv1-md-cache
 88: end-volume
 89:
 90: volume gv1
[2018-08-14 12:05:53.256363] I [MSGID: 114057] [client-handshake.c:1478:select_server_supported_programs] 0-gv1-client-0: Using Program GlusterFS 3.3, Num (1298437), Version (330)
 91:     type debug/io-stats
 92:     option log-level INFO
 93:     option latency-measurement off
 94:     option count-fop-hits off
 95:     subvolumes gv1-io-threads
 96: end-volume
 97:
 98: volume meta-autoload
 99:     type meta
100:     subvolumes gv1
101: end-volume
102:
+------------------------------------------------------------------------------+
[2018-08-14 12:05:53.256764] I [rpc-clnt.c:1986:rpc_clnt_reconfig] 0-gv1-client-1: changing port to 49152 (from 0)
[2018-08-14 12:05:53.256792] I [MSGID: 114046] [client-handshake.c:1231:client_setvolume_cbk] 0-gv1-client-0: Connected to gv1-client-0, attached to remote volume '/mnt/brick1/gv1'.
[2018-08-14 12:05:53.256811] I [MSGID: 114047] [client-handshake.c:1242:client_setvolume_cbk] 0-gv1-client-0: Server and Client lk-version numbers are not same, reopening the fds
[2018-08-14 12:05:53.256867] I [MSGID: 108005] [afr-common.c:4929:__afr_handle_child_up_event] 0-gv1-replicate-0: Subvolume 'gv1-client-0' came back up; going online.
[2018-08-14 12:05:53.256892] I [MSGID: 114035] [client-handshake.c:202:client_set_lk_version_cbk] 0-gv1-client-0: Server lk version = 1
[2018-08-14 12:05:53.257229] I [MSGID: 114057] [client-handshake.c:1478:select_server_supported_programs] 0-gv1-client-1: Using Program GlusterFS 3.3, Num (1298437), Version (330)
[2018-08-14 12:05:53.257922] I [MSGID: 114046] [client-handshake.c:1231:client_setvolume_cbk] 0-gv1-client-1: Connected to gv1-client-1, attached to remote volume '/mnt/brick1/gv1'.
[2018-08-14 12:05:53.257936] I [MSGID: 114047] [client-handshake.c:1242:client_setvolume_cbk] 0-gv1-client-1: Server and Client lk-version numbers are not same, reopening the fds
[2018-08-14 12:05:53.260170] I [MSGID: 114035] [client-handshake.c:202:client_set_lk_version_cbk] 0-gv1-client-1: Server lk version = 1
[2018-08-14 12:05:53.261588] I [MSGID: 108031] [afr-common.c:2376:afr_local_discovery_cbk] 0-gv1-replicate-0: selecting local read_child gv1-client-0
[2018-08-14 12:05:53.262193] I [MSGID: 104041] [glfs-resolve.c:971:__glfs_active_subvol] 0-gv1: switched to graph 70687973-696e-6672-612d-6862312e7863 (0)