Move RocksDBStats to it's own module. This also brings metrics to
metrics:core since none of our other module have nested modules but
they have peer modules.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
Sometimes metrics are hard to poll (docker containers with varying ip
addresses). Because of that the push gateway exists. This extends the
metrics system to support push or pull mode for metrics (but not both
at the same time).
Three new flags
`--metrics-mode=`<`push`|`pull`> - Whether we are in pull mode (the default) where
prometheus is expected to poll or push mode where pantheon pushes to
a push gateway.
`--metrics-push-interval=`<_integer_> the frequency, in seconds, between pushes to
the push gateway. Only relevant in push mode
`--metrics-prometheus-job=`<_string_> The name of the job to report in the push gateway
Also, `--metrics-host=` and `--metrics-port=` gain new meaning in push mode. Instead of the
server they are opening up it is the host and the port of the push gateway it should push to.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
A service like the JSON-RPC service is opened up, only serving /metrics
requests in a file format for prometheus.
New CLI flags are --metrics-enabled and --metrics-listen, just like the
--rpc and --ws variants of the same.
--host-whitelist is respected the same as the JSON-RPC endpoint.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
Metrics being captured initially:
Total number of peers ever connected to
Total number of peers disconnected, by disconnect reason and whether the disconnect was initiated locally or remotely.
Current number of peers
Timing for processing JSON-RPC requests, broken down by method name.
Generic JVM and process metrics (memory used, heap size, thread count, time spent in GC, file descriptors opened, CPU time etc).
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
Update value returned by web3_clientVersion to be ethstats friendly
* Version part starts with a v
* SNAPSHOT builds report 32 bits of the git hash
* OS and architecture are sniffed out and reported
* JVM version and branding are sniffed out and reported
Example values (not all real):
pantheon/v0.9.0-dev-f800a0b1/osx-x86_64/oracle-java-1.8
pantheon/v0.9.0-dev-27960b57/osx-x86_64/zulu-java-11
pantheon/v0.9.0/linux-arm64/openjdk-java-12
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
CJ Hare
Danno Ferrin
Adrian Sutton
mark-terry
Chris Mckay
PegaSys Admin