Because currently the lock in the script is retried every 1 second, and it's a
quite a long time that it's possible for some other active script can be
executed and retain the lock again. So it's possible that the first one request
the lock is always being preemptted by others, then finally got timeout.
To fix this issue, the retry interval is reduced to 0.1 seconds, which would
provide more retry times. And each process want to get the lock would create a
file named lockname-PID.lock, and only the first one(judged by timestamp) would
get the lock. The remaining ones would retry every 0.1 seconds to see if it can
get the lock.
Also timeout time is extended to 30 seconds.
And add testcase for it.
status 11772: resolved fixed
* Disable sync until we find a way that only tracks status but not does action
*
* The scenario is: Baremetal will reboot host when creating template. Given most
* servers take a long time to boot up, there would be a period that mgmt server finds
* the host is stopped through fullsync. Then mgmt server updates database with marking the host as
* stopped, after that, the host comes up and full sync then indicates it's running. Because
* in database the host is already stopped, mgmt server sends out a stop command.
* As a result, creating image gets never happened.
The following are summary of changes:
1) when network.disable.rpfilter is set to true, then rp_filter will be disadbled(set to 0) on all the public interfaces and also default setting of the system.
2) when network.disable.rpfilter is set to false, then rp_filter will be enabled(set to 1) on all the public interfaces and also default setting of the system.
2) here public public interface means , eth2 ... ethN. default setting means (/proc/sys/net/ipv4/conf/default/rp_filter).
3) Default setting change will have impact on non-public interface.if there is no specific setting for other interfaces in /etc/sysctl.conf or otherexplict setting , they will follow this default settings. currently non-public interface like eth0 ,eth1 does not have any specific setting in sysctl.conf, due to this there rp_filters will be changed when ever network.disable.rpfilter setting is changed.
4) default setting is required to changes beacuse when a new public interface is created, new interface will take rp_filter value from the default setting.
Abhinandan Prateek
kishan
Naredula Janardhana Reddy
anthony
Sheng Yang
Chiradeep Vittal
frank
keshav
Nitin
Kelven Yang
alena
David Nalley
Mikhail Mikhaliov