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Stefane Fermigier
neo
Commits
5c24c361
Commit
5c24c361
authored
Jun 07, 2017
by
Kirill Smelkov
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.
parent
505cf34b
Changes
6
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6 changed files
with
55 additions
and
52 deletions
+55
-52
go/neo/parttab.go
go/neo/parttab.go
+5
-5
go/neo/proto.go
go/neo/proto.go
+1
-1
go/neo/server/master.go
go/neo/server/master.go
+6
-6
go/neo/server/server.go
go/neo/server/server.go
+0
-37
go/neo/server/storage.go
go/neo/server/storage.go
+1
-1
go/neo/x_connection.go
go/neo/x_connection.go
+42
-2
No files found.
go/neo/parttab.go
View file @
5c24c361
...
...
@@ -29,7 +29,7 @@ package neo
//
// Oid space is divided (partitioned) into Np parts via
//
// p
tid(oid) = oid % Np XXX ptid -> pid ?
// p
id(oid) = oid % Np
//
// rule. The `oid % Np` is known as partition identifier of oid.
//
...
...
@@ -38,7 +38,7 @@ package neo
//
// Given Np, R and []Storage PartitionTable tries to organize
//
// P
t
id -> []Storage
// Pid -> []Storage
//
// mapping so that
//
...
...
@@ -107,9 +107,9 @@ package neo
type
PartitionTable
struct
{
// XXX do we need sync.Mutex here for updates ?
ptTab
[][]
PartitionCell
// [#Np]
PtTab
[][]
PartitionCell
// [#Np] XXX naming
pt
id
PTid
// ↑ for versioning XXX -> ver ?
PT
id
PTid
// ↑ for versioning XXX -> ver ?
}
// PartitionCell describes one storage in a ptid entry in partition table
...
...
@@ -140,7 +140,7 @@ type PartitionCell struct {
//
// XXX or keep not only NodeUUID in PartitionCell - add *Node ?
func
(
pt
*
PartitionTable
)
OperationalWith
(
nt
*
NodeTable
)
bool
{
for
_
,
ptEntry
:=
range
pt
.
p
tTab
{
for
_
,
ptEntry
:=
range
pt
.
P
tTab
{
if
len
(
ptEntry
)
==
0
{
return
false
}
...
...
go/neo/proto.go
View file @
5c24c361
...
...
@@ -208,7 +208,7 @@ type Checksum [20]byte
// Partition Table identifier
// Zero value means "invalid id" (<-> None in py.PPTID)
type
PTid
uint64
// XXX move to common place ?
type
PTid
uint64
// XXX move -> marshalutil.go ?
...
...
go/neo/server/master.go
View file @
5c24c361
...
...
@@ -227,7 +227,7 @@ loop:
// we are interested in latest partTab
// NOTE during recovery no one must be subscribed to
// partTab so it is ok to simply change whole m.partTab
if
r
.
partTab
.
ptid
>
m
.
partTab
.
pt
id
{
if
r
.
partTab
.
PTid
>
m
.
partTab
.
PT
id
{
m
.
partTab
=
r
.
partTab
}
...
...
@@ -324,16 +324,16 @@ func storCtlRecovery(ctx context.Context, link *neo.NodeLink, res chan storRecov
// reconstruct partition table from response
pt
:=
neo
.
PartitionTable
{}
pt
.
pt
id
=
resp
.
PTid
pt
.
PT
id
=
resp
.
PTid
for
_
,
row
:=
range
resp
.
RowList
{
i
:=
row
.
Offset
for
i
>=
uint32
(
len
(
pt
.
p
tTab
))
{
pt
.
ptTab
=
append
(
pt
.
p
tTab
,
[]
neo
.
PartitionCell
{})
for
i
>=
uint32
(
len
(
pt
.
P
tTab
))
{
pt
.
PtTab
=
append
(
pt
.
P
tTab
,
[]
neo
.
PartitionCell
{})
}
//pt.
ptTab[i] = append(pt.p
tTab[i], row.CellList...)
//pt.
PtTab[i] = append(pt.P
tTab[i], row.CellList...)
for
_
,
cell
:=
range
row
.
CellList
{
pt
.
ptTab
[
i
]
=
append
(
pt
.
p
tTab
[
i
],
neo
.
PartitionCell
{
pt
.
PtTab
[
i
]
=
append
(
pt
.
P
tTab
[
i
],
neo
.
PartitionCell
{
NodeUUID
:
cell
.
NodeUUID
,
CellState
:
cell
.
CellState
,
})
...
...
go/neo/server/server.go
View file @
5c24c361
...
...
@@ -136,40 +136,3 @@ func IdentifyPeer(link *neo.NodeLink, myNodeType neo.NodeType) (nodeInfo neo.Req
return
req
,
nil
}
// IdentifyWith identifies local node with remote peer
// it also verifies peer's node type to what caller expects
// XXX place != ok (this is client, not server ?)
func
IdentifyWith
(
expectPeerType
neo
.
NodeType
,
link
*
neo
.
NodeLink
,
myInfo
neo
.
NodeInfo
,
clusterName
string
)
(
accept
*
neo
.
AcceptIdentification
,
err
error
)
{
defer
xerr
.
Contextf
(
&
err
,
"%s: request identification"
,
link
)
conn
,
err
:=
link
.
NewConn
()
if
err
!=
nil
{
return
nil
,
err
}
defer
func
()
{
err2
:=
conn
.
Close
()
if
err
==
nil
&&
err2
!=
nil
{
err
=
err2
}
}()
accept
=
&
neo
.
AcceptIdentification
{}
err
=
neo
.
Ask
(
conn
,
&
neo
.
RequestIdentification
{
NodeType
:
myInfo
.
NodeType
,
NodeUUID
:
myInfo
.
NodeUUID
,
Address
:
myInfo
.
Address
,
ClusterName
:
clusterName
,
IdTimestamp
:
myInfo
.
IdTimestamp
,
// XXX ok?
},
accept
)
if
err
!=
nil
{
return
nil
,
err
// XXX err ctx ?
}
if
accept
.
NodeType
!=
expectPeerType
{
return
nil
,
fmt
.
Errorf
(
"accepted, but peer is not %v (identifies as %v)"
,
expectPeerType
,
accept
.
NodeType
)
}
return
accept
,
nil
}
go/neo/server/storage.go
View file @
5c24c361
...
...
@@ -138,7 +138,7 @@ func (stor *Storage) talkMaster1(ctx context.Context) error {
// TODO Mlink.Close() on return / cancel
// request identification this way registering our node to master
accept
,
err
:=
IdentifyWith
(
neo
.
MASTER
,
Mlink
,
stor
.
myInfo
,
stor
.
clusterName
)
accept
,
err
:=
neo
.
IdentifyWith
(
neo
.
MASTER
,
Mlink
,
stor
.
myInfo
,
stor
.
clusterName
)
if
err
!=
nil
{
return
err
}
...
...
go/neo/x_connection.go
View file @
5c24c361
...
...
@@ -6,6 +6,8 @@ import (
"reflect"
"../zodb"
"lab.nexedi.com/kirr/go123/xerr"
)
// RecvAndDecode receives packet from conn and decodes it
...
...
@@ -124,8 +126,7 @@ func Expect(conn *Conn, msg Pkt) (err error) {
// ------------------------------------------
// XXX vvv place = ok ?
// XXX place=?
// errEncode translates an error into Error packet
// XXX more text describing relation with zodb errors
...
...
@@ -156,3 +157,42 @@ func ErrDecode(e *Error) error {
return
e
}
// ------------------------------------------
// XXX place=?
// IdentifyWith identifies local node with remote peer
// it also verifies peer's node type to what caller expects
func
IdentifyWith
(
expectPeerType
NodeType
,
link
*
NodeLink
,
myInfo
NodeInfo
,
clusterName
string
)
(
accept
*
AcceptIdentification
,
err
error
)
{
defer
xerr
.
Contextf
(
&
err
,
"%s: request identification"
,
link
)
conn
,
err
:=
link
.
NewConn
()
if
err
!=
nil
{
return
nil
,
err
}
defer
func
()
{
err2
:=
conn
.
Close
()
if
err
==
nil
&&
err2
!=
nil
{
err
=
err2
}
}()
accept
=
&
AcceptIdentification
{}
err
=
Ask
(
conn
,
&
RequestIdentification
{
NodeType
:
myInfo
.
NodeType
,
NodeUUID
:
myInfo
.
NodeUUID
,
Address
:
myInfo
.
Address
,
ClusterName
:
clusterName
,
IdTimestamp
:
myInfo
.
IdTimestamp
,
// XXX ok?
},
accept
)
if
err
!=
nil
{
return
nil
,
err
// XXX err ctx ?
}
if
accept
.
NodeType
!=
expectPeerType
{
return
nil
,
fmt
.
Errorf
(
"accepted, but peer is not %v (identifies as %v)"
,
expectPeerType
,
accept
.
NodeType
)
}
return
accept
,
nil
}
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