mirror of
https://github.com/minio/minio.git
synced 2024-12-26 23:25:54 -05:00
81 lines
4.4 KiB
Go
81 lines
4.4 KiB
Go
/*
|
|
*
|
|
* Copyright 2017, Google Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following disclaimer
|
|
* in the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* * Neither the name of Google Inc. nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
// Package keepalive defines configurable parameters for point-to-point healthcheck.
|
|
package keepalive
|
|
|
|
import (
|
|
"time"
|
|
)
|
|
|
|
// ClientParameters is used to set keepalive parameters on the client-side.
|
|
// These configure how the client will actively probe to notice when a connection broken
|
|
// and to cause activity so intermediaries are aware the connection is still in use.
|
|
// Make sure these parameters are set in coordination with the keepalive policy on the server,
|
|
// as incompatible settings can result in closing of connection.
|
|
type ClientParameters struct {
|
|
// After a duration of this time if the client doesn't see any activity it pings the server to see if the transport is still alive.
|
|
Time time.Duration // The current default value is infinity.
|
|
// After having pinged for keepalive check, the client waits for a duration of Timeout and if no activity is seen even after that
|
|
// the connection is closed.
|
|
Timeout time.Duration // The current default value is 20 seconds.
|
|
// If true, client runs keepalive checks even with no active RPCs.
|
|
PermitWithoutStream bool // false by default.
|
|
}
|
|
|
|
// ServerParameters is used to set keepalive and max-age parameters on the server-side.
|
|
type ServerParameters struct {
|
|
// MaxConnectionIdle is a duration for the amount of time after which an idle connection would be closed by sending a GoAway.
|
|
// Idleness duration is defined since the most recent time the number of outstanding RPCs became zero or the connection establishment.
|
|
MaxConnectionIdle time.Duration // The current default value is infinity.
|
|
// MaxConnectionAge is a duration for the maximum amount of time a connection may exist before it will be closed by sending a GoAway.
|
|
// A random jitter of +/-10% will be added to MaxConnectionAge to spread out connection storms.
|
|
MaxConnectionAge time.Duration // The current default value is infinity.
|
|
// MaxConnectinoAgeGrace is an additive period after MaxConnectionAge after which the connection will be forcibly closed.
|
|
MaxConnectionAgeGrace time.Duration // The current default value is infinity.
|
|
// After a duration of this time if the server doesn't see any activity it pings the client to see if the transport is still alive.
|
|
Time time.Duration // The current default value is 2 hours.
|
|
// After having pinged for keepalive check, the server waits for a duration of Timeout and if no activity is seen even after that
|
|
// the connection is closed.
|
|
Timeout time.Duration // The current default value is 20 seconds.
|
|
}
|
|
|
|
// EnforcementPolicy is used to set keepalive enforcement policy on the server-side.
|
|
// Server will close connection with a client that violates this policy.
|
|
type EnforcementPolicy struct {
|
|
// MinTime is the minimum amount of time a client should wait before sending a keepalive ping.
|
|
MinTime time.Duration // The current default value is 5 minutes.
|
|
// If true, server expects keepalive pings even when there are no active streams(RPCs).
|
|
PermitWithoutStream bool // false by default.
|
|
}
|