Number of threads metered twice

[swerner0]

I noticed my prometheus exports had 2 thread counts listed:

# HELP process_threads The number of process threads
# TYPE process_threads gauge
process_threads 486.0

and

# HELP process_memory_threads_bytes  
# TYPE process_memory_threads_bytes gauge
process_memory_threads_bytes 486.0

The last one appears to be from the following:

micrometer-jvm-extras/src/main/java/io/github/mweirauch/micrometer/jvm/extras/ProcessMemoryMetrics.java

Line 41 in 4c5017c

for (final KEY key : KEY.values()) {

Where KEY.values() contains the memory values and THREADS

[mweirauch]

Oops, how embarassing! Thanks for spotting and reporting this! I was seeing this the other day, but thought it was some actual experimental code I worked on quite a while ago in a testing project.

This was introduced with 0.2.0. I will try to come up with a fix and a release tomorrow evening.

[swerner0]

Cool, thanks.

Yeah, no rush. Our grafana dashboards use the proper value, but did a double take when I saw the other one :-)

[mweirauch]

Release 0.2.2 has been synced to Maven Central. Thanks again for reporting!