Bhanuprakash Bodireddy <bhanuprakash.bodire...@intel.com> writes: > Keepalive feature is aimed at achieving Fastpath Service Assurance > in OVS-DPDK deployments. It adds support for monitoring the packet > processing cores(PMD thread cores) by dispatching heartbeats at regular > intervals. Incase of heartbeat misses additional health checks are > enabled on the PMD thread to detect the failure and the same shall be > reported to higher level fault management systems/frameworks. > > The implementation uses OVSDB for reporting the health of the PMD threads. > Any external monitoring application can read the status from OVSDB at > regular intervals (or) subscribe to the updates in OVSDB so that they get > notified when the changes happen on OVSDB. > > keepalive info struct is created and initialized for storing the > status of the PMD threads. This is initialized by main thread(vswitchd) > as part of init process and will be periodically updated by 'keepalive' > thread. keepalive feature can be enabled through below OVSDB settings. > > enable-keepalive=true > - Keepalive feature is disabled by default. > > keepalive-interval="5000" > - Timer interval in milliseconds for monitoring the packet > processing cores. > > When KA is enabled, 'ovs-keepalive' thread shall be spawned that wakes > up at regular intervals to update the timestamp and status of pmd cores > in keepalive info struct. This information shall be read by vswitchd thread > and write the status in to 'keepalive' column of Open_vSwitch table in OVSDB. > > An external monitoring framework like collectd with ovs events support > can read (or) subscribe to the datapath status changes in ovsdb. When the > state > is updated, the collectd shall be notified and will eventually relay the > status > to ceilometer service running in the controller. Below is the high level > overview of deployment model. > > Compute Node Controller Compute Node > > Collectd <----------> Ceilometer <--------> Collectd > > OvS DPDK OvS DPDK > > +-----+ > | VM | > +--+--+ > \---+---/ > | > +--+---+ +------------+----------+ +------+-------+ > | OVS |-----> | ovsevents plugin | --> | collectd | > +--+---+ +------------+----------+ +------+-------+ > > +------+-----+ +---------------+------------+ | > | Ceilometer | <-- | collectd ceilometer plugin | <--- > +------+-----+ +---------------+------------+ > > Performance impact: > No noticeable performance or latency impact is observed with > KA feature enabled. > > -------------------------------------------------
Hi Bhanu, I had some problems applying this to master. Can you rebase? -Aaron _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev