Nikita, Looks like all we need now is a 1 simple metric: are operations blocked? Just a true or false. Lest start from this. All other metrics can be extracted from logs now and can be implemented later.
On Tue, Jul 16, 2019 at 12:46 PM Nikolay Izhikov <nizhi...@apache.org> wrote: > +1. > > Nikita, please, go ahead. > > > вт, 16 июля 2019 г., 11:45 Nikita Amelchev <nsamelc...@gmail.com>: > > > Hello, Igniters. > > > > I suggest to add some useful metrics about the partition map exchange > > (PME). For now, the duration of PME stages available only in log files > > and cannot be obtained using JMX or other external tools. [1] > > > > I made the list of local node metrics that help to understand the > > actual status of current PME: > > > > 1. initialVersion. Topology version that initiates the exchange. > > 2. initTime. Time PME was started. > > 3. initEvent. Event that triggered PME. > > 4. partitionReleaseTime. Time when a node has finished waiting for all > > updates and translations on a previous topology. > > 5. sendSingleMessageTime. Time when a node sent a single message. > > 6. recieveFullMessageTime. Time when a node received a full message. > > 7. finishTime. Time PME was ended. > > > > When new PME started all these metrics resets. > > > > These metrics help to understand: > > - how long PME was (current or previous). > > - how long awaited for all updates was completed. > > - what node blocks PME (didn't send a single message) > > - what triggered PME. > > > > Thoughts? > > > > [1] https://issues.apache.org/jira/browse/IGNITE-11961 > > > > -- > > Best wishes, > > Amelchev Nikita > > >
