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Code Issues Releases Activity

grpc pool should check state (#1435)

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Co-authored-by: huangshaojie <huangshaojie@corp.netease.com>
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Socket 2020-03-28 16:48:25 +08:00 committed by GitHub
parent e4acc63d5f
commit 8282e781e4
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1 changed files with 27 additions and 0 deletions
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27
client/grpc/grpc_pool.go
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@ -5,6 +5,7 @@ import (
"time"
"google.golang.org/grpc"
"google.golang.org/grpc/connectivity"
)
type pool struct {
@ -77,6 +78,32 @@ func (p *pool) getConn(addr string, opts ...grpc.DialOption) (*poolConn, error)
// otherwise we'll create a new conn
conn := sp.head.next
for conn != nil {
// check conn state
// https://github.com/grpc/grpc/blob/master/doc/connectivity-semantics-and-api.md
switch conn.GetState() {
case connectivity.Connecting:
conn = conn.next
continue
case connectivity.Shutdown:
next := conn.next
if conn.streams == 0 {
removeConn(conn)
sp.idle--
}
conn = next
continue
case connectivity.TransientFailure:
next := conn.next
if conn.streams == 0 {
removeConn(conn)
conn.ClientConn.Close()
sp.idle--
}
conn = next
continue
case connectivity.Ready:
case connectivity.Idle:
}
// a old conn
if now-conn.created > p.ttl {
next := conn.next