StorageCrawler consumes high CPU eventually causing EV Server to become unresponsive, in the EV SMTP archiving environment.

book

Article ID: 100064449

calendar_today

Updated On:

Description

Error Message

No specific error messages are logged on the EV Server. StorageCrawler consumes high CPU and eventually causes EV Server to become unresponsive. In some cases, the server needs to be hard rebooted to recover from this issue.

Cause

The issue seems to be encountered while extracting index metadata from the saveset asynchronously, potentially when there is a large indexable item.

Resolution

To resolve this, the call to extract meta-data for SMTP items has been synchronized. The synchronization behavior will be controllable via the registry key below.

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\KVS\Enterprise Vault\Storage

Name: SynchronizeIndexMetaDataOp 

Type: DWORD

Values:
1 - Synchronize index metadata extract operation.
0 - Asynchronously process index metadata (Default behavior)


The above registry key needs to be implemented to specify the index metadata extract operation behavior.

Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.

Veritas Technologies LLC currently plans to address this issue by way of a patch or hotfix to the current version of the software. Please note that Veritas Technologies LLC reserves the right to remove any fix from the targeted release if it does not pass quality assurance tests.  Veritas’ plans are subject to change and any action taken by you based on the above information or your reliance upon the above information is made at your own risk.


This issue is fixed in the 14.5.2 and later release(s), available in the Download Center at www.veritas.com/support:

Enterprise Vault 14.5.2 - Maintenance Release

Issue/Introduction

StorageCrawler consumes high CPU eventually causing EV Server to become unresponsive, in the EV SMTP archiving environment.

Additional Information

JIRA: CFT-5277 JIRA: CFT-6202 JIRA: CFT-6203