• Bug
  • Status: Closed
  • 2 Major
  • Resolution: Cannot Reproduce
  • DSO:L1
  • SylvainG
  • Reporter: eg.trab
  • March 19, 2009
  • 0
  • Watchers: 2
  • July 27, 2012
  • April 01, 2009

Attachments

Description

L1 <-> ssh tunnel <-> L2’s

using attached config.

setup:

  1. L2S2 & L2S3 are on machineA
  2. L1 is on machineB
  3. ssh tunnel created by executing on machineA: ssh -v -o “KeepAlive=yes” -Llocalhost:7101:localhost:7101 -Llocalhost:7102:localhost:7102 -Llocalhost:7103:localhost:7103 -Rlocalhost:7201:localhost:7201 -Rlocalhost:7202:localhost:7202 -Rlocalhost:7203:localhost:7203 -Rlocalhost:7301:localhost:7301 -Rlocalhost:7302:localhost:7302 -Rlocalhost:7303:localhost:7303 [email protected]

steps to replicate issue:

  1. L2S2 - active
  2. L2S3 - passive
  3. start L1, can connect to active; kill L1
  4. force L2 failover
  5. L2S3 - active
  6. L2S2 - passive
  7. start L1, can Not connect to active (do not kill L1). message repeated: “WARN - Timeout connecting to server: localhost:7202. Timeout of 10000 milliseconds occurred”
  8. force L2 failover
  9. L2S2 - active
  10. L2S3 - passive
  11. now L1 (from 7.) can connect
  12. force L2 failover
  13. L2S3 - active
  14. L2S2 - passive
  15. L1 still connected (jmx thisNodeDisconnect & thisNodeConnect received)

issue: behavior should be the same as when ssh tunnels aren’t used; searching for all the L2’s not only the first one secified in the config file.

for normal behavior, modify config file, replacing “localhost” with appropriate values

environment:

  1. using 2.7.3
  2. machineA - solaris 10 on sparc
  3. machineB - windows xp sp3

Comments

Terracotta User 2009-04-01

Hi there,

I think that there is a problem with the ssh tunnel configuration. -Llocalhost:7101:localhost:7101 for example is forwarding the port 7101 on machineA to port 7101 on machineA.

I ran a couple of tests with ssh tunneling and I was not able to reproduce the problem: everything including failover is working as expected. Here is my configuration:

  • server sales02: first L2 (dso port: 9510)
  • server sales03: second L2 (dso port: 9511)
  • server sales04: L1

On sales04, I created the ssh tunnel using the following command: ssh -f -N -L9510:sales02:9510 sales02 && ssh -f -N -L9511:sales03:9511 sales03

The trick is that the tc-config.xml for the L2 and L1 are differents. I have attached the 2 tc-config.xml I am using:

  • tc-config-server.xml is for the L2s
  • tc-config.xml for the L1

Differences between tc-config.xml and tc-config-server.xml: tc-config-server.xml:

[...] tc-config.xml: [...] Hope this helps, Cheers, Sylvain </div> {:.comment-heading} ### **Terracotta User** 2009-04-01

Unable to reproduce