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VMware vCenter Server 5.5 Update 3k Release Notes

vCenter Server 5.5 Update 3k | 13 SEP 2018 | Build 9911218

vCenter Server 5.5 Update 3k Installation Package | 13 SEP 2018 | Build 9911217

vCenter Server Appliance 5.5 Update 3k | 13 SEP 2018 | Build 9911210

Check for additions and updates to these release notes.

What's in the Release Notes

The release notes cover the following topics:

What's New

vCenter Server 5.5 Update 3k addresses issues that have been documented in the Resolved Issues section.

The update from vCenter Server 5.5 Update 3f and later affects only vCenter Server and VMware vCenter Inventory Service and you must upgrade only vCenter Server and vCenter Inventory Service components.

Earlier Releases of vCenter Server 5.5

Features and known issues of vCenter Server are described in the release notes for each release. Release notes for earlier releases of vCenter Server 5.5 are:

For compatibility, installation and upgrades, product support notices, and features see the VMware vCenter Server 5.5 Update 3 Release Notes.

Resolved Issues

The resolved issues are grouped as follows.

vCenter Server Issues
  • vCenter Server intermittently stops responding when EventManager API queries overlap with daily event cleanup jobs

    If you query for events by using either a web-based application or a script that calls the EventManager API managed object, the vpxd process might intermittently stop responding. This happens when the daily event cleanup jobs overlap with the API query for events. For instance, if Microsoft SQL server calls a daily cleanup job, while an EventManager API query is running. You might see log entries similar to:

    In the vpxd.log:
    ...ERROR to get value at pos: 3, ctype: -8 for SQL.. “SELECT EVENT...
    ...Unrecoverable VmRootError. Generating minidump...

    In the MS SQL Server log:
    Error:7886 Severity 20, State 1. *A read operation on a large object failed while sending data to the client. A common cause for this is if the application is running in READ UNCOMMITTED isolation level. This connection will be terminated*

    If you already face the issue, you can configure the event cleanup jobs and the event query jobs so they do not overlap.

    This issue is resolved in this release. 

Miscellaneous Issues
  • A VMware Enhanced vMotion Compatibility (EVC) cluster might not show new CPU IDs if you add a host in maintenance mode

    If you create an empty EVC cluster and add a host in maintenance mode, you might not see some new CPU IDs, such as Indirect Branch Restricted Speculation (IBRS), Single Thread Indirect Branch Predictors (STIBP) and Speculative Store Bypass Disable (SSBD), exposed by that EVC cluster.

    This issue is resolved in this release.

  • The vpxd service might intermittently stop responding due to a rare race condition

    The vpxd service might intermittently stop responding due to a rare race condition, filling the disk with dumps.

    This issue is resolved in this release.

  • An EVC cluster might show new CPU IDs such as IBPB even if you revert an ESXi host to an older version

    If you revert an ESXi host to an older version of ESXi, an EVC cluster might expose new CPU IDs, such as IBRS, STIBP and SSBD, even though the host does not have any of the features.

    This issue is resolved in this release. However, a host that does not meet the requirements of an EVC cluster does not automatically reconnect and you must remove it from the cluster.

Auto Deploy Issues
  • An ESXi host might fail to boot by using VMware vSphere Auto Deploy due to changed decryption keys after a Windows upgrade on a vCenter Server system

    After an OS upgrade of vCenter Server for Windows, decryption keys might change and cause a run-time error in Auto Deploy when it is used to network-boot ESXi host. The error might repeat.

    This issue is resolved in this release.

  • Performance of host profiles tasks might slow down due to extensive caching

    After consecutive restarts of the vSphere Auto Deploy service or edits of host profiles, performance of host profile tasks, such as download from a vCenter Server system, might slow down due to extensive caching.

    This issue is resolved in this release.

Known Issues from Earlier Releases

To view a list of previous known issues, click here.