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тАО09-07-2006 08:41 PM
тАО09-07-2006 08:41 PM
MySQL Toolkit does not failover to the backup node when the fibre cable link lost
Description of problem:
MySQL package does not fail over to standby node when primary node share
storage fail
Version or Release number of selected component (if n/a, use `uname -a`):
RHEL4 U2 , SG/LX 11.6x , MySQL 5.0.17c pro cert
How reproducible:
Steps to Reproduce:
1.Setup SG/LX
2.Install MySQL toolkit ,MySQL DB
3.Pull out fiber channel cable from primary node
Actual results:
MySQL package does not fail over to standby node
Expected results:
MySQL package fails over to standby node automatically and the database
continues to function
I have also config disk monitor but does not work .
The attachment is the SG config file .
Dose there anybody help me ?
Thanks !
MySQL package does not fail over to standby node when primary node share
storage fail
Version or Release number of selected component (if n/a, use `uname -a`):
RHEL4 U2 , SG/LX 11.6x , MySQL 5.0.17c pro cert
How reproducible:
Steps to Reproduce:
1.Setup SG/LX
2.Install MySQL toolkit ,MySQL DB
3.Pull out fiber channel cable from primary node
Actual results:
MySQL package does not fail over to standby node
Expected results:
MySQL package fails over to standby node automatically and the database
continues to function
I have also config disk monitor but does not work .
The attachment is the SG config file .
Dose there anybody help me ?
Thanks !
3 REPLIES 3
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тАО09-08-2006 12:55 AM
тАО09-08-2006 12:55 AM
Re: MySQL Toolkit does not failover to the backup node when the fibre cable link lost
Howdy,
Do you have 2 Fibre adapters in each server?
Does the storage not continue to work on the other adapter if one is disconnected rather than failover to the other node?
Switching adapters will be less disruptive to your application than a failover to another node.
Can you post the log file for the package?
Hope this helps
Ian
Do you have 2 Fibre adapters in each server?
Does the storage not continue to work on the other adapter if one is disconnected rather than failover to the other node?
Switching adapters will be less disruptive to your application than a failover to another node.
Can you post the log file for the package?
Hope this helps
Ian
Hope that helps - please click "Thumbs up" for Kudos if it does
## ---------------------------------------------------------------------------##
Which is the only cheese that is made backwards?
Edam!
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## ---------------------------------------------------------------------------##
Which is the only cheese that is made backwards?
Edam!
Tweets: @2techie4me
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тАО09-08-2006 02:21 AM
тАО09-08-2006 02:21 AM
Re: MySQL Toolkit does not failover to the backup node when the fibre cable link lost
Few things. Do you have packages configured to failover? Check package control log. Also check syslog.
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тАО09-10-2006 07:42 AM
тАО09-10-2006 07:42 AM
Re: MySQL Toolkit does not failover to the backup node when the fibre cable link lost
A few things.
First, Ian is correct. You need two FC connections to have a supportable configuration for SGLX.
Second, if you want to deal with loss of multiple FC connections you should use the disk monitor.
Third, we have recently found that LVM2 will not deactivate a VG if it has lost connection to storage. I know this is the case with U3 and I beleive it is true for U2 as well. In that case you need to set "SERVICE_FAIL_FAST_ENABLED=YES" to force a system reset if both FC connections are lost.
First, Ian is correct. You need two FC connections to have a supportable configuration for SGLX.
Second, if you want to deal with loss of multiple FC connections you should use the disk monitor.
Third, we have recently found that LVM2 will not deactivate a VG if it has lost connection to storage. I know this is the case with U3 and I beleive it is true for U2 as well. In that case you need to set "SERVICE_FAIL_FAST_ENABLED=YES" to force a system reset if both FC connections are lost.
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