add-brick

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Hi

How add-brick is supposed to be transparent for processes using the
glusterfs volume? 

In my experiecne, add-brick on an inactive filesystems is completely
transparent. However, if there is some activity, during the operation, I
get transcient errors:

# cp -r /usr/local/src/glusterfs-33git ./
(here I add-brick)
cp: ./glusterfs-33git/.git/objects/f0: No such file or directory

In the FUSE operation log, I can see a lookup for the file that fails
with ENOENT, followed by MKDIR that also fails with ENOENT

Here is the glusterfs client log after I add the brick. Is that behavior
expected, or is there something missing I should implement in NetBSD
FUSE implemetation?

[2012-08-18 06:56:29.500791] I [rpc-clnt.c:1660:rpc_clnt_reconfig]
  7-vndfs-client-0: changing port to 24010 (from 0)
[2012-08-18 06:56:29.501855] I [rpc-clnt.c:1660:rpc_clnt_reconfig] 
  7-vndfs-client-1: changing port to 24014 (from 0)
[2012-08-18 06:56:33.381571] I 
  [client-handshake.c:1636:select_server_supported_programs]  
  7-vndfs-client-0: Using Program GlusterFS 3.3git, Num (1298437), 
  Version (330)
[2012-08-18 06:56:33.381902] I 
  [client-handshake.c:1636:select_server_supported_programs] 
  7-vndfs-client-1: Using Program GlusterFS 3.3git, Num (1298437), 
  Version (330)
[2012-08-18 06:56:33.382405] I 
  [client-handshake.c:1433:client_setvolume_cbk] 7-vndfs-client-0: 
  Connected to 193.54.82.103:24010, attached to remote volume '
  /export/vnd0a'.
[2012-08-18 06:56:33.382496] I 
  [client-handshake.c:1445:client_setvolume_cbk] 7-vndfs-client-0: 
  Server and Client lk-version numbers are not same, reopening the fds
[2012-08-18 06:56:33.383367] I 
  [client-handshake.c:453:client_set_lk_version_cbk] 7-vndfs-client-0: 
  Server lk version = 1
[2012-08-18 06:56:33.391422] I 
  [client-handshake.c:1433:client_setvolume_cbk] 7-vndfs-client-1: 
  Connected to 193.54.82.103:24014, attached to remote volume '
  /export/vnd1a'.
[2012-08-18 06:56:33.391521] I 
  [client-handshake.c:1445:client_setvolume_cbk] 7-vndfs-client-1: 
  Server and Client lk-version numbers are not same, reopening the fds
[2012-08-18 06:56:33.432591] I [fuse-bridge.c:4193:fuse_graph_setup] 
  0-fuse: switched to graph 7
[2012-08-18 06:56:33.432828] I 
  [client-handshake.c:453:client_set_lk_version_cbk] 7-vndfs-client-1: 
  Server lk version = 1
[2012-08-18 06:56:33.442249] I [dht-layout.c:593:dht_layout_normalize] 
  7-vndfs-dht: found anomalies in /. holes=1 overlaps=0
[2012-08-18 06:56:33.453040] I [client.c:2151:notify] 6-vndfs-client-0:
  current graph is no longer active, destroying rpc_client 
[2012-08-18 06:56:33.454784] I [client.c:2090:client_rpc_notify] 
  6-vndfs-client-0: disconnected
[2012-08-18 06:56:33.466282] W [
  [fuse-resolve.c:152:fuse_resolve_gfid_cbk] 0-fuse: 
  6a4a33a7-a37b-4a62-b63c-0e3f96226520: failed to resolve (Invalid 
  argument)
[2012-08-18 06:56:33.466387] E [fuse-bridge.c:843:fuse_setattr_resume] 
  0-glusterfs-fuse: 2827: SETATTR 3032497708 
  (6a4a33a7-a37b-4a62-b63c-0e3f96226520) resolution failed
[2012-08-18 06:56:33.471578] W 
  [fuse-resolve.c:152:fuse_resolve_gfid_cbk] 0-fuse: 
  85f64202-a5f9-45a2-848d-0e1f4012d4b7: failed to resolve (Invalid 
  argument)
[2012-08-18 06:56:33.471704] E [fuse-bridge.c:352:fuse_lookup_resume] 
  0-fuse: failed to resolve path (null)
[2012-08-18 06:56:33.476630] W 
  [fuse-resolve.c:152:fuse_resolve_gfid_cbk] 0-fuse: 
  85f64202-a5f9-45a2-848d-0e1f4012d4b7: failed to resolve (Invalid 
  argument)
[2012-08-18 06:56:33.476728] E [fuse-bridge.c:352:fuse_lookup_resume] 
  0-fuse: failed to resolve path (null)
[2012-08-18 06:56:33.484311] W [
  fuse-resolve.c:152:fuse_resolve_gfid_cbk] 0-fuse: 
  85f64202-a5f9-45a2-848d-0e1f4012d4b7: failed to resolve (Invalid 
  argument)
[2012-08-18 06:56:33.484414] E [fuse-bridge.c:1261:fuse_mkdir_resume] 
  0-glusterfs-fuse: MKDIR 3032485708 ( 
  00000000-0000-0000-0000-000000000000/f0) resolution failed

-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu@xxxxxxxxxx



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