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ruanhaishen
redis
Commits
603e480f
Commit
603e480f
authored
Jan 22, 2014
by
antirez
Browse files
Cluster: clusterGenNodesDescription() refactored into two functions.
parent
1cf532dc
Changes
1
Hide whitespace changes
Inline
Side-by-side
src/cluster.c
View file @
603e480f
...
...
@@ -2510,6 +2510,82 @@ void clusterSetMaster(clusterNode *n) {
* CLUSTER command
* -------------------------------------------------------------------------- */
/* Generate a csv-alike representation of the specified cluster node.
* See clusterGenNodesDescription() top comment for more information.
*
* The function returns the string representation as an SDS string. */
sds clusterGenNodeDescription(clusterNode *node) {
int j, start;
sds ci;
/* Node coordinates */
ci = sdscatprintf(sdsempty(),"%.40s %s:%d ",
node->name,
node->ip,
node->port);
/* Flags */
if (node->flags == 0) ci = sdscat(ci,"noflags,");
if (node->flags & REDIS_NODE_MYSELF) ci = sdscat(ci,"myself,");
if (node->flags & REDIS_NODE_MASTER) ci = sdscat(ci,"master,");
if (node->flags & REDIS_NODE_SLAVE) ci = sdscat(ci,"slave,");
if (node->flags & REDIS_NODE_PFAIL) ci = sdscat(ci,"fail?,");
if (node->flags & REDIS_NODE_FAIL) ci = sdscat(ci,"fail,");
if (node->flags & REDIS_NODE_HANDSHAKE) ci =sdscat(ci,"handshake,");
if (node->flags & REDIS_NODE_NOADDR) ci = sdscat(ci,"noaddr,");
if (ci[sdslen(ci)-1] == ',') ci[sdslen(ci)-1] = ' ';
/* Slave of... or just "-" */
if (node->slaveof)
ci = sdscatprintf(ci,"%.40s ",node->slaveof->name);
else
ci = sdscatprintf(ci,"- ");
/* Latency from the POV of this node, link status */
ci = sdscatprintf(ci,"%lld %lld %llu %s",
(long long) node->ping_sent,
(long long) node->pong_received,
(unsigned long long) node->configEpoch,
(node->link || node->flags & REDIS_NODE_MYSELF) ?
"connected" : "disconnected");
/* Slots served by this instance */
start = -1;
for (j = 0; j < REDIS_CLUSTER_SLOTS; j++) {
int bit;
if ((bit = clusterNodeGetSlotBit(node,j)) != 0) {
if (start == -1) start = j;
}
if (start != -1 && (!bit || j == REDIS_CLUSTER_SLOTS-1)) {
if (j == REDIS_CLUSTER_SLOTS-1) j++;
if (start == j-1) {
ci = sdscatprintf(ci," %d",start);
} else {
ci = sdscatprintf(ci," %d-%d",start,j-1);
}
start = -1;
}
}
/* Just for MYSELF node we also dump info about slots that
* we are migrating to other instances or importing from other
* instances. */
if (node->flags & REDIS_NODE_MYSELF) {
for (j = 0; j < REDIS_CLUSTER_SLOTS; j++) {
if (server.cluster->migrating_slots_to[j]) {
ci = sdscatprintf(ci," [%d->-%.40s]",j,
server.cluster->migrating_slots_to[j]->name);
} else if (server.cluster->importing_slots_from[j]) {
ci = sdscatprintf(ci," [%d-<-%.40s]",j,
server.cluster->importing_slots_from[j]->name);
}
}
}
return ci;
}
/* Generate a csv-alike representation of the nodes we are aware of,
* including the "myself" node, and return an SDS string containing the
* representation (it is up to the caller to free it).
...
...
@@ -2523,82 +2599,18 @@ void clusterSetMaster(clusterNode *n) {
* of the CLUSTER NODES function, and as format for the cluster
* configuration file (nodes.conf) for a given node. */
sds clusterGenNodesDescription(int filter) {
sds
ci
=
sdsempty
();
sds ci = sdsempty()
, ni
;
dictIterator *di;
dictEntry *de;
int
j
,
start
;
di = dictGetSafeIterator(server.cluster->nodes);
while((de = dictNext(di)) != NULL) {
clusterNode *node = dictGetVal(de);
if (node->flags & filter) continue;
/* Node coordinates */
ci
=
sdscatprintf
(
ci
,
"%.40s %s:%d "
,
node
->
name
,
node
->
ip
,
node
->
port
);
/* Flags */
if
(
node
->
flags
==
0
)
ci
=
sdscat
(
ci
,
"noflags,"
);
if
(
node
->
flags
&
REDIS_NODE_MYSELF
)
ci
=
sdscat
(
ci
,
"myself,"
);
if
(
node
->
flags
&
REDIS_NODE_MASTER
)
ci
=
sdscat
(
ci
,
"master,"
);
if
(
node
->
flags
&
REDIS_NODE_SLAVE
)
ci
=
sdscat
(
ci
,
"slave,"
);
if
(
node
->
flags
&
REDIS_NODE_PFAIL
)
ci
=
sdscat
(
ci
,
"fail?,"
);
if
(
node
->
flags
&
REDIS_NODE_FAIL
)
ci
=
sdscat
(
ci
,
"fail,"
);
if
(
node
->
flags
&
REDIS_NODE_HANDSHAKE
)
ci
=
sdscat
(
ci
,
"handshake,"
);
if
(
node
->
flags
&
REDIS_NODE_NOADDR
)
ci
=
sdscat
(
ci
,
"noaddr,"
);
if
(
ci
[
sdslen
(
ci
)
-
1
]
==
','
)
ci
[
sdslen
(
ci
)
-
1
]
=
' '
;
/* Slave of... or just "-" */
if
(
node
->
slaveof
)
ci
=
sdscatprintf
(
ci
,
"%.40s "
,
node
->
slaveof
->
name
);
else
ci
=
sdscatprintf
(
ci
,
"- "
);
/* Latency from the POV of this node, link status */
ci
=
sdscatprintf
(
ci
,
"%lld %lld %llu %s"
,
(
long
long
)
node
->
ping_sent
,
(
long
long
)
node
->
pong_received
,
(
unsigned
long
long
)
node
->
configEpoch
,
(
node
->
link
||
node
->
flags
&
REDIS_NODE_MYSELF
)
?
"connected"
:
"disconnected"
);
/* Slots served by this instance */
start
=
-
1
;
for
(
j
=
0
;
j
<
REDIS_CLUSTER_SLOTS
;
j
++
)
{
int
bit
;
if
((
bit
=
clusterNodeGetSlotBit
(
node
,
j
))
!=
0
)
{
if
(
start
==
-
1
)
start
=
j
;
}
if
(
start
!=
-
1
&&
(
!
bit
||
j
==
REDIS_CLUSTER_SLOTS
-
1
))
{
if
(
j
==
REDIS_CLUSTER_SLOTS
-
1
)
j
++
;
if
(
start
==
j
-
1
)
{
ci
=
sdscatprintf
(
ci
,
" %d"
,
start
);
}
else
{
ci
=
sdscatprintf
(
ci
,
" %d-%d"
,
start
,
j
-
1
);
}
start
=
-
1
;
}
}
/* Just for MYSELF node we also dump info about slots that
* we are migrating to other instances or importing from other
* instances. */
if
(
node
->
flags
&
REDIS_NODE_MYSELF
)
{
for
(
j
=
0
;
j
<
REDIS_CLUSTER_SLOTS
;
j
++
)
{
if
(
server
.
cluster
->
migrating_slots_to
[
j
])
{
ci
=
sdscatprintf
(
ci
,
" [%d->-%.40s]"
,
j
,
server
.
cluster
->
migrating_slots_to
[
j
]
->
name
);
}
else
if
(
server
.
cluster
->
importing_slots_from
[
j
])
{
ci
=
sdscatprintf
(
ci
,
" [%d-<-%.40s]"
,
j
,
server
.
cluster
->
importing_slots_from
[
j
]
->
name
);
}
}
}
ni = clusterGenNodeDescription(node);
ci = sdscatsds(ci,ni);
sdsfree(ni);
ci = sdscatlen(ci,"\n",1);
}
dictReleaseIterator(di);
...
...
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