- return MoreObjects.toStringHelper(LeaderFrontendState.class).add("clientId", clientId)
- .add("purgedHistories", purgedHistories).toString();
+ return MoreObjects.toStringHelper(LeaderFrontendState.class)
+ .add("clientId", clientId)
+ .add("nanosAgo", tree.readTime() - lastSeenTicks)
+ .add("purgedHistories", purgedHistories)
+ .toString();