getClusterPerf
Syntax
getClusterPerf([includeMaster=false])
Arguments
includeMaster indicates whether to include the controller information in the output.
Details
Returns configurations and performance measures for each node in the cluster. It can only be executed on the controller.
It returns a table with the following columns:
Field |
Description |
Unit |
|---|---|---|
host |
Host name |
|
port |
Port number |
|
site |
(LAN) site |
|
mode |
Node type or deployment mode |
|
state |
A Boolean value indicating whether the node is alive. |
|
agentSite |
Agent information of the current node. |
|
maxConnections |
The maximum number of connections (from GUI, API, other nodes, etc.) to the local node. |
|
maxMemSize |
The maximum memory allocated to DolphinDB. |
GB |
workerNum |
The size of worker pool for regular interactive jobs. The default value is the number of CPU cores |
|
executorNum |
The number of local executors. The default value is the number of CPU cores - 1 |
|
connectionNum |
The number of connections to a local node. Note that the return value for the agent is a random number. |
|
name |
Node alias |
|
memoryUsed |
Memory used by the node |
Bytes |
memoryAlloc |
Total memory allocated to DolphinDB on the node. |
Bytes |
cpuUsage |
CPU usage |
|
avgLoad |
Average CPU load |
|
maxRunningQueryTime |
The maximum elapsed time of the queries that are currently running. |
ns |
runningJobs |
The number of running jobs |
|
queuedJobs |
The number of jobs in queue |
|
runningTasks |
The number of running tasks |
|
queuedTasks |
The number of tasks in queue |
|
jobLoad |
CPU load of a job |
|
diskCapacity |
Disk capacity |
Bytes |
diskFreeSpace |
Available disk space |
Bytes |
diskFreeSpaceRatio |
Available space ratio |
|
diskWriteRate |
The rate at which data are written to disk. |
Bytes/sec |
diskReadRate |
The rate at which data are read from disk. |
Bytes/sec |
lastMinuteWriteVolume |
The data written to disk in the last minute. |
Bytes |
lastMinuteReadVolume |
The data read from disk in the last minute. |
Bytes |
networkSendRate |
The rate at which data are sent. |
Bytes/sec |
networkRecvRate |
The rate at which data are received. |
Bytes/sec |
lastMinuteNetworkSend |
Data sent in the last minute |
Byte |
lastMinuteNetworkRecv |
Data received in the last minute |
Byte |
publicName |
Returns publicName for a controller configured with publicName; |
|
lastMsgLatency |
Latency of the last received message |
ns |
cumMsgLatency |
Cumulative latency of the messages |
ns |
isLeader |
Whether it is the leader of a raft group. It only returns for a raft group of controllers. Note that it will return NULL for a raft group with crashed node. |
The following measures are displayed only when the configuration parameter perfMonitoring is set to 1.
Field |
Description |
Unit |
|---|---|---|
medLast10QueryTime |
The median execution time of the previous 10 finished queries. |
ns |
maxLast10QueryTime |
The maximum execution time of the previous 10 finished queries. |
ns |
medLast100QueryTime |
The median execution time of the previous 100 finished queries. |
ns |
maxLast100QueryTime |
The maximum execution time of the previous 100 finished queries. |
ns |
Examples
$ rpc(getControllerAlias(), getClusterPerf)
host |
port |
site |
mode |
state |
agentSite |
maxConnections |
maxMemSize |
workerNum |
executorNum |
connectionNum |
name |
memoryUsed |
memoryAlloc |
cpuUsage |
avgLoad |
medLast10QueryTime |
maxLast10QueryTime |
medLast100QueryTime |
maxLast100QueryTime |
maxRunningQueryTime |
runningJobs |
queuedJobs |
runningTasks |
queuedTasks |
jobLoad |
diskCapacity |
diskFreeSpace |
diskFreeSpaceRatio |
diskWriteRate |
diskReadRate |
lastMinuteWriteVolume |
lastMinuteReadVolume |
networkSendRate |
networkRecvRate |
lastMinuteNetworkSend |
lastMinuteNetworkRecv |
publicName |
lastMsgLatency |
cumMsgLatency |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
192.168.1.48 |
8,894 |
192.168.1.48:8894:datanode3 |
0 |
1 |
192.168.1.48:8891:agent1 |
192 |
16 |
16 |
15 |
4 |
datanode3 |
9,073,704 |
12,648,448 |
1.0309 |
0.0103 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1,000,068,870,144 |
941,631,864,832 |
0.9416 |
0 |
0 |
1,058 0 |
0 |
0 |
0 |
0 |
0 |
127.0.0.1 |
0 |
0 |
192.168.1.48 |
8,895 |
192.168.1.48:8895:datanode4 |
0 |
1 |
192.168.1.48:8891:agent1 |
192 |
16 |
16 |
15 |
4 |
datanode4 |
8,862,912 |
9,502,720 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1,000,068,870,144 |
941,631,864,832 |
0.9416 |
0 |
0 |
1,058 0 |
0 |
0 |
0 |
0 |
0 |
127.0.0.1 |
0 |
0 |
192.168.1.48 |
8,891 |
192.168.1.48:8891:agent1 |
1 |
1 |
192.168.1.48:8891:agent1 |
32 |
12 |
4 |
15 |
0 |
agent1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
192.168.1.48 |
8,892 |
192.168.1.48:8892:datanode1 |
0 |
1 |
192.168.1.48:8891:agent1 |
192 |
16 |
16 |
15 |
4 |
datanode1 |
8,976,200 |
10,551,296 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1,000,068,870,144 |
941,631,864,832 |
0.9416 |
0 |
0 |
1,058 0 |
0 |
0 |
0 |
0 |
0 |
127.0.0.1 |
0 |
0 |
192.168.1.48 |
8,893 |
192.168.1.48:8893:datanode2 |
0 |
1 |
192.168.1.48:8891:agent1 |
192 |
16 |
16 |
15 |
5 |
datanode2 |
9,290,232 |
11,599,872 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1,000,068,870,144 |
941,631,864,832 |
0.9416 |
0 |
0 |
1,058 0 |
0 |
0 |
0 |
0 |
0 |
127.0.0.1 |
0 |
0 |
$ rpc(getControllerAlias(), getClusterPerf).keys()
["host","port","site","mode","state","agentSite","maxConnections","maxMemSize","workerNum","executorNum","connectionNum","name","memoryUsed","memoryAlloc","cpuUsage","avgLoad","medLast10QueryTime","maxLast10QueryTime","medLast100QueryTime","maxLast100QueryTime","maxRunningQueryTime","runningJobs","queuedJobs","runningTasks","queuedTasks","jobLoad","diskCapacity","diskFreeSpace","diskFreeSpaceRatio","diskWriteRate","diskReadRate","lastMinuteWriteVolume","lastMinuteReadVolume","networkSendRate","networkRecvRate","lastMinuteNetworkSend","lastMinuteNetworkRecv","publicName","lastMsgLatency","cumMsgLatency"]
For a high-availability cluster:
$ rpc(getControllerAlias(true), getClusterPerf)
host |
port |
site |
mode |
state |
agentSite |
maxConnections |
maxMemSize |
workerNum |
executorNum |
connectionNum |
name |
memoryUsed |
memoryAlloc |
cpuUsage |
avgLoad |
medLast10QueryTime |
maxLast10QueryTime |
medLast100QueryTime |
maxLast100QueryTime |
maxRunningQueryTime |
runningJobs |
queuedJobs |
runningTasks |
queuedTasks |
jobLoad |
diskCapacity |
diskFreeSpace |
diskFreeSpaceRatio |
diskWriteRate |
diskReadRate |
lastMinuteWriteVolume |
lastMinuteReadVolume |
networkSendRate |
networkRecvRate |
lastMinuteNetworkSend |
lastMinuteNetworkRecv |
publicName |
lastMsgLatency |
cumMsgLatency |
isLeader |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
192.168.100.10 |
17,000 |
192.168.100.10:17000:master3 |
2 |
1 |
512 |
16 |
64 |
3 |
1 |
master3 |
23,449,272 |
24,133,632 |
0.7788 |
0.0037 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
4,658 |
2,736 |
102,468 |
59,193 |
78,351 |
8,012,182 |
2,378,846 |
192.198.1.10;172.17.0.1;10.244.5.0;10.244.5.1 |
0 |
0 |
false |
|
192.168.100.11 |
17,000 |
192.168.100.11:17000:master2 |
2 |
1 |
512 |
16 |
64 |
3 |
2 |
master2 |
23,527,872 |
24,133,632 |
11.5625 |
0.3219 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
4,670 |
2,785 |
116,733 |
62,402 |
56,160 |
1,366,293 |
1,398,238 |
192.198.1.11;172.17.0.1;10.244.4.0;10.244.4.1 |
0 |
0 |
false |
|
192.168.100.12 |
17,000 |
192.168.100.12:17000:master1 |
2 |
1 |
512 |
16 |
64 |
3 |
20 |
master1 |
25,002,792 |
46,538,752 |
14.0406 |
0.1136 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
4,671 |
13,546,528 |
19,964,606 |
53,206 |
56,891 |
22,543,771 |
8,226,278 |
192.198.1.12;172.17.0.1;10.244.3.0;10.244.3.1 |
0 |
0 |
true |
|
192.168.100.12 |
17,102 |
192.168.100.12:17102:server19-datanode1 |
0 |
1 |
192.168.100.12:17101:server19-agent1 |
254 |
120 |
5 |
31 |
1 |
server19-datanode1 |
23,118,960 |
24,133,632 |
13.928 |
0.1136 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
17,790,585,659,392 |
16,826,060,464,128 |
0.9458 |
0 |
4,687 |
1,289 |
23,477 |
44,197 |
55,104 |
352,258 |
6,163,159 |
192.198.1.12;172.17.0.1;10.244.3.0;10.244.3.1 |
0 |
0 |
|
192.168.100.11 |
17,102 |
192.168.100.11:17102:server18-datanode1 |
0 |
1 |
192.168.100.11:17101:server18-agent1 |
254 |
120 |
5 |
31 |
1 |
server18-datanode1 |
23,111,912 |
24,133,632 |
14.1066 |
0.3219 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
17,790,585,659,392 |
16,714,392,956,928 |
0.9395 |
0 |
4,698 |
1,989 |
23,530 |
40,896 |
50,706 |
243,008 |
250,727 |
192.198.1.11;172.17.0.1;10.244.4.0;10.244.4.1 |
0 |
0 |
|
192.168.100.11 |
17,101 |
192.168.100.11:17101:server18-agent1 |
1 |
1 |
192.168.100.11:17101:server18-agent1 |
304 |
4 |
4 |
63 |
0 |
server18-agent1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
192.198.1.11;172.17.0.1;10.244.4.0;10.244.4.1 |
0 |
0 |
|
192.168.100.10 |
17,102 |
192.168.100.10:17102:server17-datanode1 |
0 |
1 |
192.168.100.10:17101:server17-agent1 |
254 |
120 |
5 |
31 |
1 |
server17-datanode1 |
40,872,496 |
52,445,184 |
0.7788 |
0.0037 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
53,783,736,754,176 |
50,336,934,432,768 |
0.9359 |
0 |
4,699 |
13,900,218 |
18,835 |
118,935 |
109,862 |
6,170,512 |
408,018 |
192.198.1.10;172.17.0.1;10.244.5.0;10.244.5.1 |
0 |
0 |
|
192.168.100.12 |
17,101 |
192.168.100.12:17101:server19-agent1 |
1 |
1 |
192.168.100.12:17101:server19-agent1 |
304 |
4 |
4 |
63 |
0 |
server19-agent1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
192.198.1.12;172.17.0.1;10.244.3.0;10.244.3.1 |
0 |
0 |
|
192.168.100.10 |
17,101 |
192.168.100.10:17101:server17-agent1 |
1 |
1 |
192.168.100.10:17101:server17-agent1 |
304 |
4 |
4 |
63 |
0 |
server17-agent1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
192.198.1.10;172.17.0.1;10.244.5.0;10.244.5.1 |
0 |
0 |