#Release Notes for Zenoss Core Version 2.5.1

A newly redesigned Event Console offers inline event filtering and improved usability. A new "Event Details" pane helps streamline troubleshooting tasks.

A new Community Site Window Portlet that provides easy access to Zenoss information resources.

The Amazon Web Services™ ZenPack, which allows you to monitor the performance and availability of Amazon Elastic Compute Cloud™ (Amazon EC2™) Web services.

More than 40 new ZenPacks (contributed by the community since Version 2.4)

Linux®

Mac OS® X v10.5 Leopard®, Mac OS® X v10.6 Snow Leopard®

Windows® (requires VMware^TM Player and the Zenoss Virtual Appliance)

Firefox 3.x or Internet Explorer 7

Adobe® Flash® Player (for network map functionality)

Windows Server (2000, 2003, 2008), Windows XP, and Windows Vista®

Linux or other UNIX® server

VMware ESX Infrastructure

Tomcat^TM and other Java®/JMX servers

Any SNMP- or SSH-enabled device

In Firefox, the event console may not correctly display all events. (Defect 5852)

To work around this issue, follow these steps:

In Windows 2000, logical disk performance counters are disabled by default. After Zenoss models file systems for Windows 2000, it does not gather performance data until you modify the server to enable those performance counters.

To enable the performance counters, use the diskperf command on the server. For more information, read the Microsoft Knowledge Base article titled "Using Diskperf on Windows 2000" at http://support.microsoft.com/kb/253251. (Int Defect 1223)

LDAP SSL does not perform correctly on CentOS 4 installations or the Zenoss appliance. (Int Defect 1763)

For AIX, CPU utilization output is not correctly reported. (Int Defect 1777)

Error messages from one user can appear in multiple sessions. (Defect 3992)

When installing from source on FreeBSD, fonts do not appear correctly in performance graphs. (Defect 5006)

To correct this issue, you must install Liberation fonts with the following command:

ln -s /usr/local/lib/X11/fonts/Liberation /usr/share/fonts/X11/

After installing the Amazon Web Services ZenPack, you must restart the zenhub daemon. (Defect 5630)

When monitoring the status of Windows Services using WMI (zenwin daemon), the number in the 'Count' column of the Event Console does not increment each time zenwin polls a Windows host for events associated with monitored Windows services being down. (Defect 5677)

You cannot close events from a custom event view. (Defect 5696)

Heartbeat failure events (used to notify the Zenoss administrator that a collector daemon is not functioning properly) may not be created. (Defect 5714)

Until a patch is issued to resolve this issue, Zenoss recommends that you add the "Zenoss Issues" portlet to your dashboard to identify collector problems.

When installing on OSX Server 10.6, if the /Library/LaunchDaemons directory does not exist before installation or upgrade, you must create it. (Defect 5788)

Use the following commands:

sudo mkdir -p /LibraryLaunchDaemons
sudo chmod 755 /Library/LaunchDaemons
sudo chown root:wheel /Library/LaunchDaemons

If you use the WMI Data Source ZenPack (http://community.zenoss.org/docs/DOC-3392), then you must upgrade to Version 1.5 before upgrading to Version 2.5.1 of Zenoss. (Otherwise, the Zenoss upgrade will not complete successfully.) Earlier versions of this ZenPack are not compatible with Zenoss 2.5x. (Defect 5794)

Zenoss now requires that you enter your current password for confirmation when modifying user preferences (including your own), and when modifying user commands. This feature does not perform correctly when using an external authentication source, such as LDAP. (Defect 5826)

To work around this issue, set up user preferences and user commands by using a local account (such as the built-in admin account). Alternatively, you can patch this defect by running these commands (as the zenoss user) on your Zenoss server:

zenpatch 15788
zopectl restart

If using a Windows Domain user account:

wmic -U "DOMAIN\USER%PASSWORD" //HOST "SELECT name FROM Win32_Service"

If using a local Windows user account:

wmic -U ".\USER%PASSWORD" //HOST "SELECT name FROM Win32_Service"