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The backup-volfile-servers mount option allows to specify more than

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one server to be contacted in single mount command. With this option in place,
it is not required to iterate over all the servers in the addrlist.
A mount attempt with this option  will fetch all the servers mentioned in
the list, Reference # https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/Administration_Guide/sect-Native_Client.html

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
This commit is contained in:
Humble Chirammal 2017-07-18 22:26:21 +05:30
parent 4103f40fc2
commit 413380e557
1 changed files with 9 additions and 3 deletions
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12
pkg/volume/glusterfs/glusterfs.go
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@ -335,9 +335,13 @@ func (b *glusterfsMounter) setUpAtInternal(dir string) error {
options = append(options, "backup-volfile-servers="+dstrings.Join(addrlist[:], ":"))
mountOptions := volume.JoinMountOptions(b.mountOptions, options)
// Avoid mount storm, pick a host randomly.
// Iterate all hosts until mount succeeds.
for _, ip := range addrlist {
// with `backup-volfile-servers` mount option in place, it is not required to
// iterate over all the servers in the addrlist. A mount attempt with this option
// will fetch all the servers mentioned in the backup-volfile-servers list.
// Refer backup-volfile-servers @ https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/Administration_Guide/sect-Native_Client.html
if (len(addrlist) > 0) && (addrlist[0] != "") {
ip := addrlist[0]
errs = b.mounter.Mount(ip+":"+b.path, dir, "glusterfs", mountOptions)
if errs == nil {
glog.Infof("glusterfs: successfully mounted %s", dir)
@ -361,6 +365,8 @@ func (b *glusterfsMounter) setUpAtInternal(dir string) error {
return nil
}
}
} else {
return fmt.Errorf("glusterfs: failed to execute mount command:[no valid ipaddress found in endpoint address list]")
}
// Failed mount scenario.