Load Balancer Reports

Example 19-1 shows the output of the dscontrol manager report command. The first table lists the servers being load balanced and their status. The second table lists the servers by port, weight, number of active and new connections, and load values.

The last table shows the advisors that were started, the port, and the timeout value attributed to it.

--------------------------------------------------------------------
|       SERVER                      |    IP ADDRESS   |   STATUS   |
--------------------------------------------------------------------
|           srvb504.torolab.ibm.com |    9.26.127.157 |     ACTIVE |
|         m106958f.itso.ral.ibm.com |     9.42.171.83 |     ACTIVE |
|           srvb501.torolab.ibm.com |    9.26.126.120 |     ACTIVE |
--------------------------------------------------------------------
-----------------------------
|   MANAGER REPORT LEGEND   |
-----------------------------
| ACTV | Active Connections |
| NEWC | New Connections    |
| SYS  | System Metric      |
| NOW  | Current Weight     |
| NEW  | New Weight         |
| WT   | Weight             |
| CONN | Connections        |
-----------------------------
-------------------------------------------------------------------
| nat1.torolab.ibm.com                                            |
| 9.26.52.154        | WEIGHT |  ACTV  |  NEWC  |  PORT  |   SYS  |
|     PORT:    80    |NOW  NEW|   49%  |   50%  |    1%  |    0%  |
-------------------------------------------------------------------
| srvb504.torolab.ibm.com                                         |
|                    | 10  10 |      0 |      0 |    109 |      0 |
| m106958f.itso.ral.ibm.com                                       |
|                    |  9  9  |      0 |      0 |    211 |      0 |
| srvb501.torolab.ibm.com                                         |
|                    | 10  10 |      0 |      0 |     13 |      0 |
-------------------------------------------------------------------
-------------------------------------------------------------------
| nat1.torolab.ibm.com                                            |
|     9.26.52.154    | WEIGHT |  ACTV  |  NEWC  |  PORT  |   SYS  |
|     PORT:   443    |NOW  NEW|   49%  |   50%  |    1%  |    0%  |
-------------------------------------------------------------------
| srvb504.torolab.ibm.com                                         |
|                    |  4  4  |      4 |      6 |     56 |      0 |
| m106958f.itso.ral.ibm.com                                       |
|                    | 13  13 |      2 |      2 |    241 |      0 |
| srvb501.torolab.ibm.com                                         |
|                    | 11  11 |      3 |      0 |     76 |      0 |
-------------------------------------------------------------------
---------------------------------------------------
|    ADVISOR    |    CLUSTER:PORT     |  TIMEOUT  |
---------------------------------------------------
|          http |                  80 | unlimited |
|           ssl |                 443 | unlimited |
---------------------------------------------------

You can check whether packets are being forwarded to the cluster by issuing the dscontrol executor report command, which produces a report of the packet traffic on the Executor component of Dispatcher, as shown in Example 19-2.

Executor Report:
----------------
Version level ................................. 06.00.02.58 - 20070126-105431 [wsbld47]
Total packets received since starting ......... 714,873
Packets sent to nonforwarding address ......... 464,998
Packets processed locally on this machine ..... 0
Packets sent to collocated server ............. 0
Packets forwarded to any cluster .............. 91,223
Packets not addressed to active cluster/port .. 74
KBytes transferred per second ................. 62
Connections per second ........................ 2
Packets discarded - headers too short ......... 0
Packets discarded - no port or servers ........ 0
Packets discarded - network adapter failure ... 0
Packets with forwarding errors................. 0