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Previous change logs can be found at CHANGELOG-3.4.
The minimum recommended etcd versions to run in production are 3.2.28+, 3.3.18+, and 3.4.2+.
See code changes and v3.5 upgrade guide for any breaking changes.
Again, before running upgrades from any previous release, please make sure to read change logs below and v3.5 upgrade guide.
go.etcd.io/etcd
Go packages have moved to go.etcd.io/etcd/{api,pkg,raft,client,etcdctl,server,raft,tests}/v3
to follow the Go modules conventionsgo.etcd.io/clientv3/snapshot
SnapshotManager class have moved to go.etcd.io/clientv3/etcdctl
.
The method snapshot.Save
to download a snapshot from the remote server was preserved in 'go.etcd.io/clientv3/snapshot`.MemberList
call will fail./v3
endpoint.
/v3beta
.curl -L http://localhost:2379/v3beta/kv/put -X POST -d '{"key": "Zm9v", "value": "YmFy"}'
does work in v3.5. Use curl -L http://localhost:2379/v3/kv/put -X POST -d '{"key": "Zm9v", "value": "YmFy"}'
instead.etcd --experimental-enable-v2v3
flag remains experimental and to be deprecated.
--enable-v2
and --experimental-enable-v2v3
are now deprecated and will be removed in etcd v3.6 release.etcd --experimental-backend-bbolt-freelist-type
flag has been deprecated. Use etcd --backend-bbolt-freelist-type
instead. The default type is hashmap and it is stable now.etcd --debug
flag has been deprecated. Use etcd --log-level=debug
instead.embed.Config.Debug
.etcd --log-output
flag has been deprecated. Use etcd --log-outputs
instead.etcd --logger=zap --log-outputs=stderr
is now the default.etcd --logger=capnslog
flag value has been deprecated.etcd --logger=zap --log-outputs=default
flag value is not supported..
etcd --logger=zap --log-outputs=stderr
.etcd --logger=zap --log-outputs=systemd/journal
to send logs to the local systemd journal.etcd --logger=capnslog --log-outputs=default
redirects server logs to local systemd journal. And if write to journald fails, it writes to os.Stderr
as a fallback.os.Stderr
, which is inefficient.etcd --log-outputs=stderr
is now the default.etcd --log-package-levels
flag for capnslog
has been deprecated. Now, etcd --logger=zap --log-outputs=stderr
is the default.[CLIENT-URL]/config/local/log
endpoint has been deprecated, as is etcd --log-package-levels
flag.
curl http://127.0.0.1:2379/config/local/log -XPUT -d '{"Level":"DEBUG"}'
won't work.etcd --logger=zap --log-outputs=stderr
instead.etcd_debugging_mvcc_db_total_size_in_bytes
Prometheus metric. Use etcd_mvcc_db_total_size_in_bytes
instead.etcd_debugging_mvcc_put_total
Prometheus metric. Use etcd_mvcc_put_total
instead.etcd_debugging_mvcc_delete_total
Prometheus metric. Use etcd_mvcc_delete_total
instead.etcd_debugging_mvcc_txn_total
Prometheus metric. Use etcd_mvcc_txn_total
instead.etcd_debugging_mvcc_range_total
Prometheus metric. Use etcd_mvcc_range_total
instead./version
outputs 3.5.0-pre
, instead of 3.4.0+git
.proxy
package function signature to support structured logger.
NewClusterProxy(c *clientv3.Client, advaddr string, prefix string) (pb.ClusterServer, <-chan struct{})
, now NewClusterProxy(lg *zap.Logger, c *clientv3.Client, advaddr string, prefix string) (pb.ClusterServer, <-chan struct{})
.Register(c *clientv3.Client, prefix string, addr string, ttl int)
, now Register(lg *zap.Logger, c *clientv3.Client, prefix string, addr string, ttl int) <-chan struct{}
.NewHandler(t *http.Transport, urlsFunc GetProxyURLs, failureWait time.Duration, refreshInterval time.Duration) http.Handler
, now NewHandler(lg *zap.Logger, t *http.Transport, urlsFunc GetProxyURLs, failureWait time.Duration, refreshInterval time.Duration) http.Handler
.pkg/flags
function signature to support structured logger.
SetFlagsFromEnv(prefix string, fs *flag.FlagSet) error
, now SetFlagsFromEnv(lg *zap.Logger, prefix string, fs *flag.FlagSet) error
.SetPflagsFromEnv(prefix string, fs *pflag.FlagSet) error
, now SetPflagsFromEnv(lg *zap.Logger, prefix string, fs *pflag.FlagSet) error
.embed.Config::SetupGlobalLoggers()
explicitly.NewZapLoggerBuilder
.context cancelled
or context deadline exceeded
are exposed as codes.Canceled
and codes.DeadlineExceeded
, instead of codes.Unknown
.meta
bucket confState
key.meta
bucket.downgrade
in the cluster
bucketTLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
and TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
to etcd --cipher-suites
.ClientCertFile
and ClientKeyFile
options for peer and client tls configuration when split certificates are used.See List of metrics for all metrics per release.
Note that any etcd_debugging_*
metrics are experimental and subject to change.
etcd_debugging_mvcc_db_total_size_in_bytes
Prometheus metric. Use etcd_mvcc_db_total_size_in_bytes
instead.etcd_debugging_mvcc_put_total
Prometheus metric. Use etcd_mvcc_put_total
instead.etcd_debugging_mvcc_delete_total
Prometheus metric. Use etcd_mvcc_delete_total
instead.etcd_debugging_mvcc_txn_total
Prometheus metric. Use etcd_mvcc_txn_total
instead.etcd_debugging_mvcc_range_total
Prometheus metric. Use etcd_mvcc_range_total
instead.etcd_debugging_mvcc_current_revision
Prometheus metric.etcd_debugging_mvcc_compact_revision
Prometheus metric.etcd_cluster_version
Prometheus metrics to include only major and minor version.etcd_debugging_mvcc_total_put_size_in_bytes
Prometheus metric.etcd_server_client_requests_total
with "type"
and "client_api_version"
labels.etcd_wal_write_bytes_total
.etcd_debugging_auth_revision
.os_fd_used
and os_fd_limit
to monitor current OS file descriptors.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
and TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
to etcd --cipher-suites
.etcd --enable-v2=true --enable-v2v3=/aaa
to enable v2 API server that is backed by v3 storage.etcd --backend-bbolt-freelist-type
] flag is now stable.
etcd --experimental-backend-bbolt-freelist-type
has been deprecated.[CLIENT-PORT]/health
check in server side.etcd --unsafe-no-fsync
flag.
etcd --auth-token-ttl
flag to customize simpleTokenTTL
settings.runtime.FDUsage
call pattern to reduce objects malloc of Memory Usage and CPU Usage.etcd --experimental-watch-progress-notify-interval
flag to make watch progress notify interval configurable.etcd --self-signed-cert-validity
flag to support setting certificate expiration time.
etcd --experimental-warning-apply-duration
flag which allows apply duration threshold to be configurable.etcd --experimental-memory-mlock
flag which prevents etcd memory pages to be swapped out.etcd --socket-reuse-port
flag
SO_REUSEPORT
which allows rebind of a port already in use. User should take caution when using this flag to ensure flock is properly enforced.etcd --socket-reuse-address
flag
SO_REUSEADDR
which allows binding to an address in TIME_WAIT
state, improving etcd restart time.ETCD_VERIFY="all"
environment triggers additional verification of consistency of etcd data-dir files.etcd --enable-log-rotation
boolean flag which enables log rotation if true.etcd --log-rotation-config-json
flag which allows passthrough of JSON config to configure log rotation for a file output target.--experimental-enable-distributed-tracing
which enables tracing.etcd --experimental-distributed-tracing-address
string flag which allows configuring the OpenTelemetry collector address.etcd --experimental-distributed-tracing-service-name
string flag which allows changing the default "etcd" service name.etcd --experimental-distributed-tracing-instance-id
string flag which configures an instance ID, which must be unique per etcd instance.runtime
embed
embed.Config.Debug
.
embed.Config.LogLevel
instead.embed.Config.ZapLoggerBuilder
to allow creating a custom zap logger.*zap.Logger
with etcd server logger object.embed.Config.EnableLogRotation
which enables log rotation if true.embed.Config.LogRotationConfigJSON
to allow passthrough of JSON config to configure log rotation for a file output target.embed.Config.ExperimentalEnableDistributedTracing
which enables experimental distributed tracing if true.embed.Config.ExperimentalDistributedTracingAddress
which allows overriding default collector address.embed.Config.ExperimentalDistributedTracingServiceName
which allows overriding default "etcd" service name.embed.Config.ExperimentalDistributedTracingServiceInstanceID
which allows configuring an instance ID, which must be uniquer per etcd instance.clientv3
TryLock
method to clientv3/concurrency/Mutex
. A non-blocking method on Mutex
which does not wait to get lock on the Mutex, returns immediately if Mutex is locked by another session."hasleader"
metadata embedding.
clientv3.WithRequireLeader(ctx)
was overwriting existing context keys.etcd-endpoints://{id}/#initially={list of endpoints}
e.g. etcd-endpoints://0xc0009d8540/#initially=[localhost:2079]
lease
wal
etcd_wal_write_bytes_total
.ReadAll
and entry limit in decodeRecord
.etcdctl member add
command to prevent potential timeout. (PR#11194 and PR#11638)etcdctl watch --progress-notify
flag.etcdctl auth status
command to check if authentication is enabledetcdctl get --count-only
flag for output type fields
.etcdctl member list -w=json --hex
flag to print memberListResponse in hex format json.etcdctl lock <lockname> exec-command
to return exit code of exec-command.etcdutl
incorporated functionality of: etcdctl snapshot status|restore
, etcdctl backup
, etcdctl defrag --data-dir ...
.etcdctl migrate
has been decomissioned. Use etcd <=v3.4 to restore v2 storage./v3
endpoint.
/v3beta
.curl -L http://localhost:2379/v3beta/kv/put -X POST -d '{"key": "Zm9v", "value": "YmFy"}'
does work in v3.5. Use curl -L http://localhost:2379/v3/kv/put -X POST -d '{"key": "Zm9v", "value": "YmFy"}'
instead.enable-grpc-gateway
flag to true when using a config file to keep the defaults the same as the command line configuration.panic on error
for metrics handler.grpc-keepalive-min-time
, grpc-keepalive-interval
and grpc-keepalive-timeout
./v3/auth/status
endpoint to check if authentication is enabledLinearizable
field to etcdserverpb.MemberListRequest
.netutil
netutil.DropPort/RecoverPort/SetLatency/RemoveLatency
.
tools/etcd-dump-metrics
google.golang.org/grpc
from v1.23.0
to v1.37.0
.go.uber.org/zap
from v1.14.1
to v1.16.0
.arm64
.
arm64
EC2 instances (Graviton 2).此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
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