Thanks Akshesh. Disconnecting participants is one way to achieve the goal. But it could impact the all replicas on that participant.
I would suggest Imran to disable the partition for that instance. So it will trigger it from Master -> Slave. Then you can throw exception during the process to make it to ERROR state. Or just peacefully shut it down. Best, Junkai On Sat, Jun 27, 2020 at 6:17 AM Akshesh Doshi <[email protected]> wrote: > Hi Imran > > I am not sure if you can mark it as ERROR or not (since the transition > S->M has already completed successfully) but if you just care about this > replica going down and spawning a master on another node you can just stop > this replica by stopping this process or *disconnecting > <https://github.com/apache/helix/blob/master/helix-core/src/main/java/org/apache/helix/examples/Quickstart.java#L258>* > this replica from Helix. > > > HTH > Regards > Akshesh Doshi > > > On Fri, 19 Jun 2020 at 18:37, Imran S. Shah <[email protected]> wrote: > >> Hi Lei, >> >> The partition is already in M state as transition was completed quite >> sometime back. Now, only 1 partition in the participant needs to be moved >> to ERROR state as some I/O exception has happened. So is there any API that >> the participant could call to mark this particular partition in ERROR so >> helix controller can start doing reassignments? >> >> Thanks >> Imran >> >> On Mon, Jun 15, 2020 at 7:55 AM Lei Xia <[email protected]> wrote: >> >>> Hi, Imran >>> >>> You can simply throw out an exception from your M->S state >>> transition, then Helix will mark it as ERROR. >>> >>> >>> Lei >>> >>> On Fri, Jun 12, 2020 at 4:41 AM Imran S. Shah <[email protected]> >>> wrote: >>> >>>> Hello >>>> >>>> I have implemented a standard Master-Slave model. Now let's say my >>>> partitions are in Master state, but however due to some errors (out of disk >>>> space for a particular partition on the participant), I would like the >>>> participant to transition the state to error. However, looking at the >>>> documentation it doesn't look like there is a method that I could call. >>>> Updating the state on the model just updates the local variable and doesn't >>>> notify the controller. >>>> >>>> Any pointers or examples would be appreciated. >>>> >>>> Thanks, >>>> Imran >>>> >>> >>> >>> -- >>> Lei Xia >>> >>
