[Bugs] [Bug 1221889] Log EEXIST errors in DEBUG level in fops MKNOD and MKDIR

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1221889



--- Comment #1 from Krutika Dhananjay <kdhananj at redhat.com> ---
Here is an excerpt from the logs when dd is executed on the mount (which
possibly writes through multiple threads):

<client-logs>
...
...
[2015-05-15 09:19:21.890807] W [client-rpc-fops.c:308:client3_3_mkdir_cbk]
0-dis-client-0: remote operation failed: File exists. Path: /.shard
[2015-05-15 09:19:21.890958] W [client-rpc-fops.c:308:client3_3_mkdir_cbk]
0-dis-client-0: remote operation failed: File exists. Path: /.shard
[2015-05-15 09:19:21.891049] W [client-rpc-fops.c:308:client3_3_mkdir_cbk]
0-dis-client-0: remote operation failed: File exists. Path: /.shard
[2015-05-15 09:19:21.891148] W [client-rpc-fops.c:308:client3_3_mkdir_cbk]
0-dis-client-0: remote operation failed: File exists. Path: /.shard
[2015-05-15 09:19:21.893121] W [client-rpc-fops.c:308:client3_3_mkdir_cbk]
0-dis-client-0: remote operation failed: File exists. Path: /.shard
[2015-05-15 09:19:21.893277] W [client-rpc-fops.c:308:client3_3_mkdir_cbk]
0-dis-client-0: remote operation failed: File exists. Path: /.shard
[2015-05-15 09:19:21.893375] I [dht-layout.c:697:dht_layout_normalize]
0-dis-dht: Found anomalies in /.shard (gfid =
00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0
[2015-05-15 09:19:21.893502] I [dht-layout.c:697:dht_layout_normalize]
0-dis-dht: Found anomalies in /.shard (gfid =
00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0
[2015-05-15 09:19:21.893575] I [dht-layout.c:697:dht_layout_normalize]
0-dis-dht: Found anomalies in /.shard (gfid =
00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0
[2015-05-15 09:19:21.893703] I [dht-layout.c:697:dht_layout_normalize]
0-dis-dht: Found anomalies in /.shard (gfid =
00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0
[2015-05-15 09:19:21.893820] I [MSGID: 109036]
[dht-common.c:6692:dht_log_new_layout_for_dir_selfheal] 0-dis-dht: Setting
layout of /.shard with [Subvol_name: dis-client-0, Err: -1 , Start: 0 , Stop:
4294967295 , Hash: 1 ], 
[2015-05-15 09:19:21.895055] I [dht-layout.c:697:dht_layout_normalize]
0-dis-dht: Found anomalies in /.shard (gfid =
00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0
[2015-05-15 09:19:21.895924] I [dht-layout.c:697:dht_layout_normalize]
0-dis-dht: Found anomalies in /.shard (gfid =
00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0
[2015-05-15 09:19:22.175998] W [client-rpc-fops.c:241:client3_3_mknod_cbk]
0-dis-client-0: remote operation failed: File exists. Path:
/.shard/72c4bc4a-ff12-4e2f-b231-992a64cdde82.1
[2015-05-15 09:19:22.176119] W [client-rpc-fops.c:241:client3_3_mknod_cbk]
0-dis-client-0: remote operation failed: File exists. Path:
/.shard/72c4bc4a-ff12-4e2f-b231-992a64cdde82.1
[2015-05-15 09:19:22.451790] W [client-rpc-fops.c:241:client3_3_mknod_cbk]
0-dis-client-0: remote operation failed: File exists. Path:
/.shard/72c4bc4a-ff12-4e2f-b231-992a64cdde82.2
[2015-05-15 09:19:22.451908] W [client-rpc-fops.c:241:client3_3_mknod_cbk]
0-dis-client-0: remote operation failed: File exists. Path:
/.shard/72c4bc4a-ff12-4e2f-b231-992a64cdde82.2
...
...
</client-logs>

<brick-logs>
...
...
[2015-05-15 09:19:21.890271] I [MSGID: 115056]
[server-rpc-fops.c:487:server_mkdir_cbk] 0-dis-server: 31: MKDIR /.shard
(00000000-0000-0000-0000-000000000001/.shard) ==> (File exists) [File exists]
[2015-05-15 09:19:21.890662] I [MSGID: 115056]
[server-rpc-fops.c:487:server_mkdir_cbk] 0-dis-server: 32: MKDIR (null)
(00000000-0000-0000-0000-000000000001/.shard) ==> (File exists) [File exists]
[2015-05-15 09:19:21.890832] I [MSGID: 115056]
[server-rpc-fops.c:487:server_mkdir_cbk] 0-dis-server: 33: MKDIR (null)
(00000000-0000-0000-0000-000000000001/.shard) ==> (File exists) [File exists]
[2015-05-15 09:19:21.891038] I [MSGID: 115056]
[server-rpc-fops.c:487:server_mkdir_cbk] 0-dis-server: 36: MKDIR (null)
(00000000-0000-0000-0000-000000000001/.shard) ==> (File exists) [File exists]
[2015-05-15 09:19:21.892857] I [MSGID: 115056]
[server-rpc-fops.c:487:server_mkdir_cbk] 0-dis-server: 39: MKDIR (null)
(00000000-0000-0000-0000-000000000001/.shard) ==> (File exists) [File exists]
[2015-05-15 09:19:21.893040] I [MSGID: 115056]
[server-rpc-fops.c:487:server_mkdir_cbk] 0-dis-server: 42: MKDIR (null)
(00000000-0000-0000-0000-000000000001/.shard) ==> (File exists) [File exists]
[2015-05-15 09:19:22.175831] I [MSGID: 115057]
[server-rpc-fops.c:535:server_mknod_cbk] 0-dis-server: 176: MKNOD (null)
(be318638-e8a0-4c6d-977d-7a937aa84806/72c4bc4a-ff12-4e2f-b231-992a64cdde82.1)
==> (File exists) [File exists]
[2015-05-15 09:19:22.175966] I [MSGID: 115057]
[server-rpc-fops.c:535:server_mknod_cbk] 0-dis-server: 177: MKNOD (null)
(be318638-e8a0-4c6d-977d-7a937aa84806/72c4bc4a-ff12-4e2f-b231-992a64cdde82.1)
==> (File exists) [File exists]
[2015-05-15 09:19:22.451713] I [MSGID: 115057]
[server-rpc-fops.c:535:server_mknod_cbk] 0-dis-server: 277: MKNOD (null)
(be318638-e8a0-4c6d-977d-7a937aa84806/72c4bc4a-ff12-4e2f-b231-992a64cdde82.2)
==> (File exists) [File exists]
[2015-05-15 09:19:22.451822] I [MSGID: 115057]
[server-rpc-fops.c:535:server_mknod_cbk] 0-dis-server: 278: MKNOD (null)
(be318638-e8a0-4c6d-977d-7a937aa84806/72c4bc4a-ff12-4e2f-b231-992a64cdde82.2)
==> (File exists) [File exists]
...
...
</brick-logs>

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