Hi, Two Jira issues are mentioned in this thread: - [FLINK-7069] Catch exceptions for each reporter separately : Fixed - [FLINK-7100] TaskManager metrics are registered twice : Unresolved
I guess your error message is just an warning message. You can safely ignore it if you are using 1.3.2 or 1.3.3 because FLINK-7069 is included in 1.3.2 release (https://flink.apache.org/news/2017/08/05/release-1.3.2.html). FYI, FLINK-7069 prevents the metric system of JM and TM from being collapsed when a reporter throws an exception by ignoring them. In this case, the exception is thrown because TaskManager tries to register a set of its metrics twice during initialization. I'm still seeing your error messages because FLINK-7100 is not resolved yet. But, again, the error message is just an warning message; just ignore it. It is unavoidable even if FLINK-7100 is resolved because concurrent tasks from a TM also cause similar warning messages for other task-related metrics; each of concurrent tasks tries to register a metric with the same name. If you really do not want to see such warnings, how about adding the following line to your conf/log4j.properties (or log4j-console.properties if you're seeing the error message from console): - log4j.logger.org.apache.flink.runtime.metrics.MetricRegistry=ERROR, file (or ERROR, console in log4j-console.properties) Chesnay: I guess the warning message is quite confusing as it contains a word "Error". - Dongwon > On Fri, Oct 27, 2017 at 12:21 AM, cslotterback > <chris_slotterb...@comcast.com> wrote: > Hello κΉλμ, > > We are experiencing the same issue you were when trying to use the 1.4 > prometheus reporter with 1.3: > > ---- > [...] > Error while registering metric. > java.lang.IllegalArgumentException: Collector already registered that > provides name: flink_taskmanager_Status_JVM_CPU_Load > [...] > ----- > > The jira bug associated with this remain open, how were you able to stop > flink from loading > the taskmanager metrics multiple times? > > > > -- > Sent from: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
