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Add initial Tracing with OpenTelemetry

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This commit is contained in:
Lili Cosic
2021-04-30 16:44:10 +02:00
parent a8f38ebd6f
commit 1a718a958e
28 changed files with 449 additions and 60 deletions
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6
server/etcdmain/config.go
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@@ -251,6 +251,12 @@ func newConfig() *config {
// additional metrics
fs.StringVar(&cfg.ec.Metrics, "metrics", cfg.ec.Metrics, "Set level of detail for exported metrics, specify 'extensive' to include server side grpc histogram metrics")
// experimental distributed tracing
fs.BoolVar(&cfg.ec.ExperimentalEnableDistributedTracing, "experimental-enable-distributed-tracing", false, "Enable experimental distributed tracing using OpenTelemetry Tracing.")
fs.StringVar(&cfg.ec.ExperimentalDistributedTracingAddress, "experimental-distributed-tracing-address", embed.ExperimentalDistributedTracingAddress, "Address for distributed tracing used for OpenTelemetry Tracing (if enabled with experimental-enable-distributed-tracing flag).")
fs.StringVar(&cfg.ec.ExperimentalDistributedTracingServiceName, "experimental-distributed-tracing-service-name", embed.ExperimentalDistributedTracingServiceName, "Configures service name for distributed tracing to be used to define service name for OpenTelemetry Tracing (if enabled with experimental-enable-distributed-tracing flag). 'etcd' is the default service name. Use the same service name for all instances of etcd.")
fs.StringVar(&cfg.ec.ExperimentalDistributedTracingServiceInstanceID, "experimental-distributed-tracing-instance-id", "", "Configures service instance ID for distributed tracing to be used to define service instance ID key for OpenTelemetry Tracing (if enabled with experimental-enable-distributed-tracing flag). There is no default value set. This ID must be unique per etcd instance.")
// auth
fs.StringVar(&cfg.ec.AuthToken, "auth-token", cfg.ec.AuthToken, "Specify auth token specific options.")
fs.UintVar(&cfg.ec.BcryptCost, "bcrypt-cost", cfg.ec.BcryptCost, "Specify bcrypt algorithm cost factor for auth password hashing.")

2
server/etcdmain/grpc_proxy.go
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@@ -32,7 +32,7 @@ import (
pb "go.etcd.io/etcd/api/v3/etcdserverpb"
"go.etcd.io/etcd/client/pkg/v3/logutil"
"go.etcd.io/etcd/client/pkg/v3/transport"
"go.etcd.io/etcd/client/v3"
clientv3 "go.etcd.io/etcd/client/v3"
"go.etcd.io/etcd/client/v3/leasing"
"go.etcd.io/etcd/client/v3/namespace"
"go.etcd.io/etcd/client/v3/ordering"

10
server/etcdmain/help.go
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@@ -193,6 +193,16 @@ Logging:
--log-rotation-config-json '{"maxsize": 100, "maxage": 0, "maxbackups": 0, "localtime": false, "compress": false}'
Configures log rotation if enabled with a JSON logger config. MaxSize(MB), MaxAge(days,0=no limit), MaxBackups(0=no limit), LocalTime(use computers local time), Compress(gzip)".
Experimental distributed tracing:
--experimental-enable-distributed-tracing 'false'
Enable experimental distributed tracing.
--experimental-distributed-tracing-address 'localhost:4317'
Distributed tracing collector address.
--experimental-distributed-tracing-service-name 'etcd'
Distributed tracing service name, must be same across all etcd instances.
--experimental-distributed-tracing-instance-id ''
Distributed tracing instance ID, must be unique per each etcd instance.
v2 Proxy (to be deprecated in v4):
--proxy 'off'
Proxy mode setting ('off', 'readonly' or 'on').