View 5.1.1 connection server disconnects sessions for more than 600 users - Tunnel error: Stream closed

[Chandrakandh]

I am using evaluation license and using single connection server. I am doing benchmarks, but when the number of sessions crosses 600, view disconnects existing sessions to allow new sessions. The below error observed in view logs. I tired with ssh tunneling on/off, but same issue. The resource utilization on view connection server seems to be OK.

2013-07-09T06:09:46.173-05:00 INFO  (0B38-0D44) <DesktopControlJMS> [DesktopTracker] User ISV\Login_VSI525 connected to machine N6pz680 for desktop node6-pers-002 - session allocated at July 9, 2013 6:09:46 AM CDT,

connected after 0 mins 0 secs

2013-07-09T06:09:50.815-05:00 WARN  (095C-2FA8) <Tunnel#4971> [ca] (B174-***-D774) Tunnel error: Stream closed

2013-07-09T06:09:53.388-05:00 WARN  (095C-0C10) <Tunnel#4909> [ca] (E6D1-***-0976) Tunnel error: Stream closed

2013-07-09T06:09:58.380-05:00 WARN  (095C-25F8) <Tunnel#4723> [ca] (9D64-***-1710) Tunnel error: Stream closed

2013-07-09T06:09:59.503-05:00 WARN  (095C-30B8) <Tunnel#5021> [ca] (D464-***-8D1F) Tunnel error: Stream closed

2013-07-09T06:09:59.534-05:00 WARN  (095C-057C) <Tunnel#4742> [ca] (5918-***-353C) Tunnel error: Stream closed

2013-07-09T06:10:02.000-05:00 WARN  (095C-3060) <Tunnel#4765> [ca] (DC10-***-1BD6) Tunnel error: Stream closed

2013-07-09T06:10:03.497-05:00 WARN  (095C-22C4) <Tunnel#5095> [ca] (9E33-***-894F) Tunnel error: Stream closed

2013-07-09T06:10:03.498-05:00 WARN  (095C-2BB8) <Tunnel#4860> [ca] (B4AB-***-2057) Tunnel error: Stream closed

2013-07-09T06:10:03.621-05:00 WARN  (095C-08FC) <Tunnel#4861> [ca] (1700-***-C83A) Tunnel error: Stream closed

2013-07-09T06:10:05.884-05:00 WARN  (095C-3240) <Tunnel#4837> [ca] (4ECD-***-845B) Tunnel error: Stream closed

2013-07-09T06:10:11.135-05:00 WARN  (095C-2A54) <Tunnel#4814> [ca] (0E43-***-12D9) Tunnel error: Stream closed

2013-07-09T06:10:11.135-05:00 WARN  (095C-31DC) <Tunnel#4769> [ca] (3A4D-***-9A40) Tunnel error: Stream closed

2013-07-09T06:10:11.136-05:00 WARN  (095C-1EC8) <Tunnel#4769> [ca] (C413-***-CC64) Tunnel error: Stream closed

2013-07-09T06:10:11.137-05:00 WARN  (095C-27DC) <Tunnel#4832> [ca] (BB8C-***-8157) Tunnel error: Stream closed

2013-07-09T06:10:11.139-05:00 WARN  (095C-2478) <Tunnel#4892> [ca] (F1C4-***-2D11) Tunnel error: Stream closed

2013-07-09T06:10:11.140-05:00 WARN  (095C-23CC) <Tunnel#4973> [ca] (B6FB-***-7A6F) Tunnel error: Stream closed

2013-07-09T06:10:11.530-05:00 WARN  (095C-2DAC) <Tunnel#4951> [ca] (6CE0-***-269A) Tunnel error: Stream closed

2013-07-09T06:10:13.793-05:00 WARN  (095C-1FD0) <Tunnel#4790> [ca] (5DF7-***-0F92) Tunnel error: Stream closed

2013-07-09T06:10:14.645-05:00 WARN  (095C-0668) <Tunnel#5142> [ca] (9AE4-***-D4D0) Tunnel error: Stream closed

2013-07-09T06:10:16.065-05:00 WARN  (095C-2F8C) <Tunnel#4759> [ca] (F6E1-***-3B36) Tunnel error: Stream closed

2013-07-09T06:10:16.595-05:00 WARN  (095C-19F0) <Tunnel#5087> [ca] (CCD7-***-D1FB) Tunnel error: Stream closed

2013-07-09T06:10:18.795-05:00 WARN  (095C-31B8) <Tunnel#4735> [ca] (7A90-***-5A68) Tunnel error: Stream closed

2013-07-09T06:10:19.918-05:00 WARN  (095C-0B68) <Tunnel#4903> [ca] (2040-***-E88B) Tunnel error: Stream closed

2013-07-09T06:10:20.074-05:00 WARN  (095C-2900) <Tunnel#5022> [ca] (8015-***-70A0) Tunnel error: Stream closed

2013-07-09T06:10:21.244-05:00 WARN  (095C-1710) <Tunnel#5068> [ca] (B16C-***-A39D) Tunnel error: Stream closed

2013-07-09T06:10:21.433-05:00 ERROR (095C-2988) <Tunnel#5169> [bx] (D53A-***-10E3) No Conveyor for channel 0

2013-07-09T06:10:22.735-05:00 ERROR (095C-29D8) <Tunnel#4958> [bx] (E4E1-***-337E) No Conveyor for channel 0

[Linjo]

How much memory and cpu does your connection broker have?

For anything over 50 users you need 10GB of ram on the connection-broker and 4 vCPU:s.

If you have anything less you need to reinstall the connection broker, change the memory/vCPU and then install the connection-broker again since the java-heapsize is configured during install-time.

// Linjo

[Chandrakandh]

The config is 4vCPU, 10GB memory, 80GB Disk, Intel Xeon X5675 3.07 GHz Processor

I observed max cpu utilization of 62% and 6.6GB memory during the test.

[HKEY_LOCAL_MACHINE\SOFTWARE\VMware, Inc.\VMware VDM\plugins\wsnm

\TunnelService\Params]

-Xms128m -Xmx2048m -Xrs -XX:+UseConcMarkSweepGC

-Dsimple.http.poller=simple.http.GranularPoller

-Dsimple.http.connect.configurator=com.vmware.vdi.front.SimpleConfigurator

[mpryor]

> I am doing benchmarks, but when the number of sessions crosses 600, view disconnects existing sessions to allow new sessions.

View doesn't drop existing connections in favor of new ones unless it's the same user, it is more likely to be a network/firewall issue or something else terminating the client. "Stream closed" doesn't mean an action, it's just reporting the state. If you ignore the stream closed errors and instead look at the events, is there a pattern in terms of timing or the particular desktop connections?

[GregBister]

Hello,

I currently meet the same problem. Could you solve this incident?

Regards,

[Chandrakandh]

There is a open SR for this issue. It is observed in View 5.2 as well. Please reach out to support team.