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Auto Config tries to use the output of 'hostname' command as
a host_name for node in nagios. But if the hostnames are not unique,
then it uses IP Address as node_name name in nagios.
If after removal of a node, hostnames becomes unique then
auto config renames all the host configuration in nagios to their
hostnames instead of ip address. It creates multiples issues like
removing all the nodes, loss of time series data and unnecessary
confusion to the user.
Fixing this issue by retaining the perviously configured host
names always by going through the host uuid. So if duplication
comes after a node addition then only that node will be
configured with ip address as host_name but all other existing
hosts will not be touched.
Similary, even though there is no duplication after the removal
of a node with duplicate name, auto config will retain the
previously configured hostnames (which are ip addresss
becasue there was a hostname duplication earlier) instead of
renaming.
Change-Id: I0abef47e2e495a591dd3901d2b1766a04c59a701
Bug-Url: https://bugzilla.redhat.com/1139228
Bug-Url: https://bugzilla.redhat.com/1139505
Signed-off-by: Ramesh Nachimuthu <rnachimu@redhat.com>
Reviewed-on: http://review.gluster.org/8699
Reviewed-by: darshan n <dnarayan@redhat.com>
Reviewed-by: Sahina Bose <sabose@redhat.com>
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Verify the Nagios configuration before restarting the nagios
server. It helps in accidently stoping the nagios server because of
config error.
Change-Id: I8c7cb5663bf42d73812577e9b162434cb2ecfdfe
Bug-Url: https://bugzilla.redhat.com/1138943
Signed-off-by: Ramesh Nachimuthu <rnachimu@redhat.com>
Reviewed-on: http://review.gluster.org/8131
Reviewed-by: Shubhendu Tripathi <shtripat@redhat.com>
Reviewed-by: Sahina Bose <sabose@redhat.com>
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Fixing typo 'NPRE' in server_utils.execNRPECommand()
Bug-Url: https://bugzilla.redhat.com/1108569
Change-Id: I9b29780661353eb0b82ef24a390c2d2091f7ea4e
Signed-off-by: Ramesh Nachimuthu <rnachimu@redhat.com>
Reviewed-on: http://review.gluster.org/8130
Reviewed-by: Sahina Bose <sabose@redhat.com>
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Introduced a utility method to return a NRPE base command
with timeout set externally.
Currently if a plugin internally executes NRPE to get the
details from the node, there is no mechanism that timeout
could be set to more than 10 sec. This method provides the
NRPE command with timeout (if passed).
This is required for some of the NRPE calls where gluster commands
get executed and they might take more time.
All the plugins, which execute a NRPE within, can provide
optional command line argument for timeout, and same can be used
for forming the proper NRPE call with timeout value.
Change-Id: Id97624df743664a320a585acc4a85cfcf64d0a07
Signed-off-by: Shubhendu Tripathi <shtripat@redhat.com>
Reviewed-on: http://review.gluster.org/7682
Reviewed-by: Sahina Bose <sabose@redhat.com>
Tested-by: Sahina Bose <sabose@redhat.com>
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Enhace the auto configuration in nagios to preserve the user
changes. pynag apis are used to read/write/update the nagios config
files.
Change-Id: I6820928fb2b0baff5d6e65c811a48b5ff718f9e3
Signed-off-by: Ramesh Nachimuthu <rnachimu@redhat.com>
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