Difference between revisions of "Zimbra Releases/8.8.11/nginx hotfix"

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=Proxy/Nginx Hotfix=
 
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Latest revision as of 19:59, 5 March 2019

Proxy/Nginx Hotfix

This hotfix resolves critical Proxy/nginx bug where Proxy does not failover correctly in certain conditions. Please check Issue Description section for more information. Also check Hotfix Installation section for Hotfix Installation instructions.

Issue Description

Proxy: Fixed issue where Proxies do not failover to the next mailbox server if the server is hung
This issue is affecting Zimbra servers having zimbra-nginx version 1.7.1-1zimbra8.7b9. In multiple node environment, proxy workers are getting stuck in a loop due to failure to connect to the lookup handler of hung mailbox. This causes proxy to hang and it will not fallback to next working mailbox server. After upgrading to zimbra-nginx version 1.7.1-1zimbra8.7b11 this issue will be resolved.

Hotfix Installation

Before Installing the Hotfix

Before installing the Hotfix, consider the following:

  • A full backup should be performed before Hotfix is applied. There is no automated roll-back.
  • Important Note for ZCS Setup with Local ZCS repository: Customers who have setup local ZCS repository should first update the local repository by following instructions in wiki

Install the Hotfix

Note: The Hotfix package should be installed only on proxy nodes running in your environment.

Please refer below steps for Hotfix installation on Redhat and Ubuntu platforms:

Redhat

Install/Upgrade zimbra-nginx on Proxy node for FOSS and NETWORK

  • As root. Type below command
yum clean metadata
yum check-update 
yum install zimbra-nginx
  • Restart proxy as zimbra user
su - zimbra
zmproxyctl restart

Ubuntu

Install/Upgrade zimbra-nginx on Proxy node for FOSS and NETWORK

  • As root. Type below command
apt-get update
apt-get install zimbra-nginx
  • Restart proxy as zimbra user
su - zimbra
zmproxyctl restart
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