[Gluster-devel] Loading io-threads, write-behind and io-cache on server side

[Melvin Wong]

Hi, 

 I am trying to load io-threads, write-behind and io-cache on the server
side but the log shows " undefined symbol: notify -- neglecting ". Can
someone explain what this means? Does this means that they are not
loaded? Thank you.

 

2008-12-26 18:25:54 D [xlator.c:421:xlator_set_type] xlator: attempt to
load file /usr/lib/glusterfs/1.4.0rc7/xlator/performance/io-threads.so

2008-12-26 18:25:54 D [xlator.c:461:xlator_set_type] xlator:
dlsym(notify) on
/usr/lib/glusterfs/1.4.0rc7/xlator/performance/io-threads.so: undefined
symbol: notify -- neglecting

2008-12-26 18:25:54 D [spec.y:213:section_type] parser:
Type:iot:performance/io-threads

2008-12-26 18:25:54 D [spec.y:288:section_option] parser:
Option:iot:thread-count:4

2008-12-26 18:25:54 D [spec.y:357:section_sub] parser:
child:iot->gfs-ds-afr

2008-12-26 18:25:54 D [spec.y:372:section_end] parser: end:iot

2008-12-26 18:25:54 D [spec.y:187:new_section] parser: New node for
'writeback'

2008-12-26 18:25:54 D [xlator.c:421:xlator_set_type] xlator: attempt to
load file /usr/lib/glusterfs/1.4.0rc7/xlator/performance/write-behind.so

2008-12-26 18:25:54 D [xlator.c:461:xlator_set_type] xlator:
dlsym(notify) on
/usr/lib/glusterfs/1.4.0rc7/xlator/performance/write-behind.so:
undefined symbol: notify -- neglecting

2008-12-26 18:25:54 D [spec.y:213:section_type] parser:
Type:writeback:performance/write-behind

2008-12-26 18:25:54 D [spec.y:288:section_option] parser:
Option:writeback:aggregate-size:2MB

2008-12-26 18:25:54 D [spec.y:288:section_option] parser:
Option:writeback:window-size:3MB

2008-12-26 18:25:54 D [spec.y:357:section_sub] parser:
child:writeback->iot

2008-12-26 18:25:54 D [spec.y:372:section_end] parser: end:writeback

2008-12-26 18:25:54 D [spec.y:187:new_section] parser: New node for
'gfs'

2008-12-26 18:25:54 D [xlator.c:421:xlator_set_type] xlator: attempt to
load file /usr/lib/glusterfs/1.4.0rc7/xlator/performance/io-cache.so

2008-12-26 18:25:54 D [xlator.c:461:xlator_set_type] xlator:
dlsym(notify) on
/usr/lib/glusterfs/1.4.0rc7/xlator/performance/io-cache.so: undefined
symbol: notify -- neglecting

 

#############################################

###  GlusterFS Server Volume Specification  ##

##############################################

 

# dataspace on storage2

volume gfs-ds

  type storage/posix

  option directory /opt/gfs-ds

end-volume

 

# posix locks

volume gfs-ds-locks

  type features/posix-locks

  subvolumes gfs-ds

end-volume

 

# dataspace on storage1

volume gfs-storage1-ds

  type protocol/client

  option transport-type tcp/client

  option remote-host 192.168.19.251      # storage network

  option remote-subvolume gfs-ds-locks

  option transport-timeout 10           # value in seconds; it should be
set relatively low

end-volume

 

# automatic file replication translator for dataspace

volume gfs-ds-afr

  type cluster/afr

  subvolumes gfs-ds-locks gfs-storage1-ds         # local and remote
dataspaces

end-volume

 

# the actual exported volume

volume iot

  type performance/io-threads

  option thread-count 4

#  option cache-size 96MB

  subvolumes gfs-ds-afr

end-volume

 

# performance block for cluster                   # optional!

volume writeback

  type performance/write-behind

  option aggregate-size 2MB # default is 0bytes

  option window-size 3MB    # default is 0bytes

#  option flush-behind on    # default is 'off'

  subvolumes iot

end-volume

 

volume gfs

  type performance/io-cache

  option cache-size 96MB             # default is 32MB

  option page-size 1MB               #128KB is default option

#  option priority *.h:3,*.html:2,*:1 # default is '*:0'

  option cache-timeout 2             # default is 1 second

  subvolumes writeback

end-volume

 

# finally, the server declaration

volume server

  type protocol/server

  option transport-type tcp/server

  subvolumes gfs

  # storage network access only

  option auth.ip.gfs-ds-locks.allow *,127.0.0.1

  option auth.ip.gfs.allow *

end-volume

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