+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 >
