Rename metrics names of Scalar DB server

[brfrn169]

Renamed the names of the metrics on the basis of the following naming rule.

For JMX:

scalardb.stats.<grpc-service-name>.<some-grpc-endpoint-identifier>…

For Prometheus:

scalardb_stats_<grpc-service-name>_<some-grpc-endpoint-identifier>…

Examples for Prometheus:

// total
scalardb_stats_total_success 3268.0
scalardb_stats_total_failure 67.0

// DistributedStorage
scalardb_stats_distributed_storage_get{quantile="0.5",} 0.0026463000000000003
scalardb_stats_distributed_storage_get{quantile="0.75",} 0.0034989
scalardb_stats_distributed_storage_get{quantile="0.95",} 0.0057957
scalardb_stats_distributed_storage_get{quantile="0.98",} 0.007284400000000001
scalardb_stats_distributed_storage_get{quantile="0.99",} 0.0094631
scalardb_stats_distributed_storage_get{quantile="0.999",} 0.012586600000000002
scalardb_stats_distributed_storage_get_count 317.0
scalardb_stats_distributed_storage_get_success 313.0
scalardb_stats_distributed_storage_get_failure 4.0

scalardb_stats_distributed_storage_scan_open_scanner{quantile="0.5",} 0.0024397
scalardb_stats_distributed_storage_scan_open_scanner{quantile="0.75",} 0.0032456000000000004
scalardb_stats_distributed_storage_scan_open_scanner{quantile="0.95",} 0.006448400000000001
scalardb_stats_distributed_storage_scan_open_scanner{quantile="0.98",} 0.0087758
scalardb_stats_distributed_storage_scan_open_scanner{quantile="0.99",} 0.0126256
scalardb_stats_distributed_storage_scan_open_scanner{quantile="0.999",} 0.0126256
scalardb_stats_distributed_storage_scan_open_scanner_count 77.0
scalardb_stats_distributed_storage_scan_open_scanner_success 76.0
scalardb_stats_distributed_storage_scan_open_scanner_failure 1.0

// DistributedStorageAdmin
scalardb_stats_distributed_storage_admin_get_table_metadata{quantile="0.5",} 0.0015512000000000002
scalardb_stats_distributed_storage_admin_get_table_metadata{quantile="0.75",} 0.0032665000000000003
scalardb_stats_distributed_storage_admin_get_table_metadata{quantile="0.95",} 0.24264650000000001
scalardb_stats_distributed_storage_admin_get_table_metadata{quantile="0.98",} 0.24264650000000001
scalardb_stats_distributed_storage_admin_get_table_metadata{quantile="0.99",} 0.24264650000000001
scalardb_stats_distributed_storage_admin_get_table_metadata{quantile="0.999",} 0.24264650000000001
scalardb_stats_distributed_storage_admin_get_table_metadata_count 12.0
scalardb_stats_distributed_storage_admin_get_table_metadata_success 12.0

// DistributedTransaction
scalardb_stats_distributed_transaction_transaction_start{quantile="0.5",} 1.6690000000000002E-4
scalardb_stats_distributed_transaction_transaction_start{quantile="0.75",} 2.529E-4
scalardb_stats_distributed_transaction_transaction_start{quantile="0.95",} 7.295E-4
scalardb_stats_distributed_transaction_transaction_start{quantile="0.98",} 8.715000000000001E-4
scalardb_stats_distributed_transaction_transaction_start{quantile="0.99",} 0.0012335
scalardb_stats_distributed_transaction_transaction_start{quantile="0.999",} 0.0061697
scalardb_stats_distributed_transaction_transaction_start_count 162.0
scalardb_stats_distributed_transaction_transaction_start_success 161.0
scalardb_stats_distributed_transaction_transaction_start_failure 1.0

scalardb_stats_distributed_transaction_transaction_get{quantile="0.5",} 0.0031442
scalardb_stats_distributed_transaction_transaction_get{quantile="0.75",} 0.0040068000000000005
scalardb_stats_distributed_transaction_transaction_get{quantile="0.95",} 0.0061497
scalardb_stats_distributed_transaction_transaction_get{quantile="0.98",} 0.009380300000000001
scalardb_stats_distributed_transaction_transaction_get{quantile="0.99",} 0.0445351
scalardb_stats_distributed_transaction_transaction_get{quantile="0.999",} 0.0527895
scalardb_stats_distributed_transaction_transaction_get_count 183.0
scalardb_stats_distributed_transaction_transaction_get_success 183.0

Please take a look!

[Torch3333]

LGTM, thank you!

[feeblefakie]

LGTM! Thank you!

[feeblefakie]

@brfrn169 There is a simple conflict that I can resolve with the GitHub editor but it would be better if you can resolve it. 🙇