问题
I have upgraded my hdp cluster to 2.5 and upgraded topology dependencies of storm-core to 1.0.1 and storm-kafka to 1.0.1. After deploying the new topology with new 1.0.1 dependencies everything is working as expected in the back end but storm UI not showing always zero for "Acked","Emitted", "Transferred" etc.
Storm UI shows a message "Offset lags for kafka not supported for older versions. Please update kafka spout to latest version." under "Topology spouts lag error" what does it mean ?
回答1:
Apache Storm in HDP 2.5 is actually not same as official Apache Storm 1.0.1 since it pulled more patches from the next versions (not released yet).
https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.5.0/bk_release-notes/content/patch_storm.html
The feature "Offset lag for Kafka" is introduced Storm 1.1.0 (not released yet) and requires relevant storm-kafka version (so starting at Storm 1.1.0, too).
You need to set the version of storm-core and storm-kafka to relevant (also might need to set HWX repo to your pom). You can see the version from the UI, or the result of './storm version', or daemons' log.
回答2:
I completely agree with "Jungtaek Lim" (above answer).
Apache Storm in HDP 2.5 is actually not same as official Apache Storm 1.0.1 since it pulled more patches from the next versions (not released yet).
I fixed this problem by pulling HDP 2.5 strom-kafka dependency from HDP repository (http://repo.hortonworks.com/content/repositories/releases/org/apache/storm/storm-kafka/1.0.1.2.5.0.0-1245/).
来源：https://stackoverflow.com/questions/39932441/storm-ui-throwing-offset-lags-for-kafka-not-supported-for-older-versions-pleas