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https://issues.apache.org/jira/browse/IGNITE-26670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18034773#comment-18034773
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Vladislav Pyatkov commented on IGNITE-26670:
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After discussion we decided to make the metrics available on each node (not
only in an active actor placement driver).
For the reason we illuminated a part that is contained in any cluster node:
*active leases* (number of accepted leases), *lease negotiations* (number of
negotiations that are currently continuing), and *replication groups* (the
total number of replication groups, each of them needing accepted leases).
{noformat}
placement-driver [AcceptedLeases=22, LeaseNegotiations=35, ReplicationGroups=57]
{noformat}
> Placement driver metrics confusing
> ----------------------------------
>
> Key: IGNITE-26670
> URL: https://issues.apache.org/jira/browse/IGNITE-26670
> Project: Ignite
> Issue Type: Bug
> Reporter: Vladislav Pyatkov
> Priority: Major
> Labels: ignite-3
> Time Spent: 10m
> Remaining Estimate: 0h
>
> h3. Motivation
> The placement driver metric periodically prints in a log:
> {noformat}
> placement-driver [ActiveLeasesCount=25, CurrentPendingAssignmentsSize=0,
> CurrentStableAssignmentsSize=25, LeasesCreated=25, LeasesProlonged=1379,
> LeasesPublished=25, LeasesWithoutCandidates=0]
> {noformat}
> But in any node except for the placement driver active actor, it prints like
> this:
> {noformat}
> placement-driver [ActiveLeasesCount=0, CurrentPendingAssignmentsSize=0,
> CurrentStableAssignmentsSize=25, LeasesCreated=0, LeasesProlonged=0,
> LeasesPublished=0, LeasesWithoutCandidates=0]
> {noformat}
> Definition of done:
> There are two ways that I see:
> * Print the actual placement-driven state in each node
> * Print something that unmistakably defines that the metrics are unavailable
> because the node is not an active actor.
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