Hello,
1.0.0-alpha-4 is the current pre-release for the upcoming 1.0.0 version.
It adds the prometheus-metrics-instrumentation-jvm module, which is a port
of the simpleclient default exports to the new metrics library:
JvmMetrics
.newBuilder()
.register();
If a unit is present, the new metrics library requires the unit to be the
last part of the metric name, as defined in Prometheus Metric and Label
Naming <https://prometheus.io/docs/practices/naming/>. Therefore we had to
rename a few default metrics:
- jvm_memory_bytes_init -> jvm_memory_init_bytes
- jvm_memory_bytes_committed -> jvm_memory_committed_bytes
- jvm_memory_bytes_max -> jvm_memory_max_bytes
- jvm_memory_bytes_used -> jvm_memory_used_bytes
- jvm_memory_pool_bytes_init -> jvm_memory_pool_init_bytes
- jvm_memory_pool_bytes_committed -> jvm_memory_pool_committed_bytes
- jvm_memory_pool_bytes_max -> jvm_memory_pool_max_bytes
- jvm_memory_pool_bytes_used -> jvm_memory_pool_used_bytes
Apart from that, jvm_info was renamed to jvm_runtime_info.
If these breaking changes are an issue: There will be a compatibility
module that will allow you to use the old simpleclient default exports with
the new metrics library.
There still isn't much documentation yet, but for each new module there's
an end-to-end example and a README in the examples/
<https://github.com/prometheus/client_java/tree/1.0.x/examples> directory
(on the 1.0.x branch <https://github.com/prometheus/client_java/tree/1.0.x>
).
The next features on the roadmap towards 1.0.0 is a backwards-compatibility
module for existing simpleclient.
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