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Fix ZooKeeper Topology connection locks not being cleaned up correctly #15757

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merged 5 commits into from
Apr 20, 2024
Merged

Fix ZooKeeper Topology connection locks not being cleaned up correctly #15757

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eb70db1
Fix context timeout and cleanup phase of topo zk
frouioui Apr 18, 2024
0139086
Update sync package deps
frouioui Apr 19, 2024
40121d4
Use new ctx
frouioui Apr 19, 2024
2690688
Apply review suggestion
frouioui Apr 19, 2024
cfce401
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frouioui Apr 19, 2024
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6 changes: 3 additions & 3 deletions go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -70,14 +70,14 @@ require (
go.etcd.io/etcd/client/v3 v3.5.13
go.uber.org/mock v0.2.0
golang.org/x/crypto v0.22.0 // indirect
golang.org/x/mod v0.16.0 // indirect
golang.org/x/mod v0.17.0 // indirect
golang.org/x/net v0.24.0
golang.org/x/oauth2 v0.18.0
golang.org/x/sys v0.19.0
golang.org/x/term v0.19.0
golang.org/x/text v0.14.0 // indirect
golang.org/x/time v0.5.0
golang.org/x/tools v0.19.0
golang.org/x/tools v0.20.0
google.golang.org/api v0.172.0
google.golang.org/genproto v0.0.0-20240325203815-454cdb8f5daa // indirect
google.golang.org/grpc v1.62.1
Expand Down Expand Up @@ -106,7 +106,7 @@ require (
github.com/xlab/treeprint v1.2.0
go.uber.org/goleak v1.3.0
golang.org/x/exp v0.0.0-20240325151524-a685a6edb6d8
golang.org/x/sync v0.6.0
golang.org/x/sync v0.7.0
gonum.org/v1/gonum v0.14.0
modernc.org/sqlite v1.29.5
)
Expand Down
12 changes: 6 additions & 6 deletions go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -573,8 +573,8 @@ golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
golang.org/x/mod v0.16.0 h1:QX4fJ0Rr5cPQCF7O9lh9Se4pmwfwskqZfq5moyldzic=
golang.org/x/mod v0.16.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
Expand Down Expand Up @@ -613,8 +613,8 @@ golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJ
golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.6.0 h1:5BMeUDZ7vkXGfEr1x9B4bRcTH4lpkTkpdh0T/J+qjbQ=
golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
Expand Down Expand Up @@ -684,8 +684,8 @@ golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4f
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
golang.org/x/tools v0.19.0 h1:tfGCXNR1OsFG+sVdLAitlpjAvD/I6dHDKnYrpEZUHkw=
golang.org/x/tools v0.19.0/go.mod h1:qoJWxmGSIBmAeriMx19ogtrEPrGtDbPK634QFIcLAhc=
golang.org/x/tools v0.20.0 h1:hz/CVckiOxybQvFw6h7b/q80NTr9IUQb4s1IIzW7KNY=
golang.org/x/tools v0.20.0/go.mod h1:WvitBU7JJf6A4jOdg4S1tviW9bhUxkgeCui/0JHctQg=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
Expand Down
15 changes: 9 additions & 6 deletions go/vt/topo/zk2topo/lock.go
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Original file line number Diff line number Diff line change
Expand Up @@ -91,19 +91,22 @@ func (zs *Server) lock(ctx context.Context, dirPath, contents string) (topo.Lock
case context.Canceled:
errToReturn = topo.NewError(topo.Interrupted, nodePath)
default:
errToReturn = vterrors.Wrapf(err, "failed to obtain action lock: %v", nodePath)
errToReturn = vterrors.Wrapf(err, "failed to obtain lock: %v", nodePath)
}

// Regardless of the reason, try to cleanup.
log.Warningf("Failed to obtain action lock: %v", err)
log.Warningf("Failed to obtain lock: %v", err)

if err := zs.conn.Delete(ctx, nodePath, -1); err != nil {
log.Warningf("Failed to close connection :%v", err)
cleanupCtx, cancel := context.WithTimeout(context.Background(), baseTimeout)
defer cancel()

if err := zs.conn.Delete(cleanupCtx, nodePath, -1); err != nil {
log.Warningf("Failed to cleanup unsuccessful lock path %s: %v", nodePath, err)
}

// Show the other locks in the directory
dir := path.Dir(nodePath)
children, _, err := zs.conn.Children(ctx, dir)
children, _, err := zs.conn.Children(cleanupCtx, dir)
if err != nil {
log.Warningf("Failed to get children of %v: %v", dir, err)
return nil, errToReturn
Expand All @@ -115,7 +118,7 @@ func (zs *Server) lock(ctx context.Context, dirPath, contents string) (topo.Lock
}

childPath := path.Join(dir, children[0])
data, _, err := zs.conn.Get(ctx, childPath)
data, _, err := zs.conn.Get(cleanupCtx, childPath)
if err != nil {
log.Warningf("Failed to get first locks node %v (may have just ended): %v", childPath, err)
return nil, errToReturn
Expand Down
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