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Home > Success Center > Database Performance Analyzer (DPA) > DPA 11.0.387 Release Notes

DPA 11.0.387 Release Notes

Created by Anthony.Rinaldi, last modified by Melanie Boyd on Jun 12, 2017

Views: 107 Votes: 0 Revisions: 24

Updated May 1, 2017

These release notes describe the new features, improvements, and fixed issues in this release. They also provide information about upgrades and describe workarounds for known issues.

New features and improvements

Expanded database support

DPA 11.0 supports using the following database types as the permanent storage location for performance data captured by DPA from the monitored database instances. You can also monitor these databases:

  • Azure SQL
  • Amazon RDS for Aurora

Availability Group status

A new Availability Group (AG) Status tab shows AG summary and grouping information, including replica and database health, for SQL Server 2012 and later. You can register the AG Listener or instance, and see the status of all AGs in the instance.

Oracle adaptive plans

DPA 11.0 supports Oracle adaptive plans with notes, and marks steps that are no longer in use because they adapted.  Stay informed as to how the Oracle optimizer is adjusting the execution plans for query optimization. DPA still captures actual execution plans to track the choices the optimizer is making.

Usability

DPA 11.0 better adapts to different screen resolutions, and improves filtering on the home page.

New customer installation

For information about installing DPA, see the DPA 11.0 Administrator Guide.

Before you upgrade

If you are upgrading from a previous version, be aware of the following considerations:

  • Back up your current DPA deployment and repository database.
  • Java version: DPA 11.0 requires JRE 1.8. If you configured DPA to use an external JRE, DPA verifies it is version 1.8 or later. If the verification fails, DPA attempts to use the JRE included with the installation.

How to upgrade

If you are upgrading from a previous version, use the following resources to plan and implement your upgrade:

  • Use the DPA Upgrade Guide to help you plan and execute your upgrade.
  • When you are ready, download the upgrade package from the SolarWinds Customer Portal.
  • Upgrade your production server. If you are upgrading from DPA 9.0 or earlier, retrieve your license activation keys from the Customer Portal to complete the upgrade.

Fixed issues

DPA 11.0 fixes the following issues:

Case number Description
1091237 DPA resource utilization is no longer high during Stats Poll for Amazon RDS for Oracle databases.
929798 The secure attribute was added to the DPA userName cookie.
929798 Cross-site request forgery protection was added.
922107 DPA no longer considers email addresses with special characters as invalid.
- Changing the encryption scheme in DPA Password Encryption Settings no longer affects certain features in the DPA Integration Module.

1098934

1040584

An issue with incorrect date and time information is fixed.
1054883 The message body of a Deadlock Detail email is transmitted correctly.
1054943 Tomcat is upgraded to 8.0.36 to solve a FileUpload issue.
1048389 Text in tuning advice emails is no longer truncated.
1047631 Plan advice no longer shows only 10 plans for all previous days.
1041183 The queries for count, blocking, and locking no longer cause the Current page to hang.
1035158 The error message displayed when you unregister a monitored database that is not running has been improved. 
1031174 Options to hide the domain name, DPA version, and repository name from the login screen are now available
1022154 Input scrubbing for the Domain Name and custom Port fields was added to the AD/LDAP Configuration wizard.
1004881 A Tomcat option to prevent clickjacking was added.
876043 The text poll for SQL Server is no longer truncated to 8000 characters.
1125981 An issue with MySQL Live plans on MariaDB is fixed.

DPA 11.0.385 fixes the following issues:

Case number Description

1144429

Azure SQL databases that use a secured connection can be registered for monitoring with DPA.

When you register an Azure SQL database, you must include the suffix when you enter the database name (for example, mydb.database.secure.windows.net or mydb.database.windows.net). 

1140510
1112395
1136021
1149329

DPA works correctly when accessed through a Microsoft Internet Explorer browser with compatibility mode on. 

1141788
1143826

The Oracle plan poll job no longer fails on databases running Oracle 11.1 or earlier. 

1073989
1103885
1107496

DPA does not require large amounts of memory to summarize root blocking data for intervals that contain many blocking events. Users no longer need to increase the amount of heap memory allocated to DPA (as described in this article).

1144976

Authentication using SSO no longer performs slowly or returns an error. 

DPA 11.0.387 fixes the following issue:

Case number Description

1160414

Upgrading to the latest version of DPA no longer fails if the DPA repository uses SQL Server 2008.

Known issues

CPU utilization for a large number of CPU cores

Issue: CPU utilization does not display properly for multi-core or -socket environments. DPA uses a deprecated view which does not provide consistent data for environments using a high number of cores or sockets.

Workaround: Follow the instructions in this KB article.

SQL error on Blocking tab

Issue: The Blocking tab becomes unresponsive if there are more than 32,767 records on the Real Time Session page.

Workaround: N/A

SQL Server port required

Issue: The Update Connection Info wizard requires port information for SQL Server, even if it is instance-based.

Workaround: Enter the correct port.

Stats Poll on SQL Server

Issue: Stats Poll on SQL Server does not work correctly when counts disappear and reappear from master.sys.dm_exec_query_stats.

Workaround: N/A

Dropped tables in a MySQL repository

Issue: If your repository database is MySQL, DPA drops the CON_ALERT_HISTORY and CON_ALERT_HISTORY_RESULT tables during the upgrade due to column resizing.

Workaround: Follow the instructions in this article to back up your repository before upgrading, and restore your alert history after upgrading.

Grouping of Oracle pluggable databases

Issue: Oracle pluggable databases (PDB) from two container databases (CDB) on two computers that were created by cloning the database are placed into a single group. DPA uses the group name from the host name of one of the CDBs, and ignores the other.

Workaround: Manually override the automatic PDB grouping.

Offline deactivation not available

Issue: When your DPA server can connect to the SolarWinds licensing server, that status is cached for 60 minutes. If the connection is lost during that time, offline deactivation is not available.

Workaround: Restart DPA.

MySQL users requiring SSL

Issue: You cannot create a MySQL repository database, or register a MySQL database instance for monitoring, with a user that requires SSL for MySQL 5.6.24 and earlier.

Workaround: Upgrade to MySQL 5.6.25 or later.

Deadlock polling for SQL Server 2012 RTM

Issue: When polling deadlocks from SQL Server 2012 RTM, DPA may fail to collect deadlock information if it is configured to use the Event File target for deadlock polling. By default, this issue only occurs when monitoring Amazon RDS for SQL Server instance (2012 RTM only). This can also occur on a regular SQL Server instance (2012 RTM) if the Event File target is used instead of the default Ring Buffer target. 

Workaround: Upgrade to the latest service release of SQL Server.

Manually registered instance of Amazon RDS for SQL Server

Issue: If you manually registered an Amazon for SQL Server instance for monitoring before that database type was added to the Register Instance Wizard, the deadlock poll may not run properly because it will fail to create the Extended Events Session.

Workaround: Update the DEADLOCK_POLL_SQL_SERVER_SESSION_NAME advanced option value from dpa_deadlock_capture to system_health for the affected instances.

Orion integration fails in Turkish environment 

Issue: In a Turkish environment where the hostname contains an uppercase "i", DPA integration to Orion fails.

Workaround: Change the Orion hostname to lowercase in the Websites table.

VM CPU Ready Time in DPA is computed differently than in VMware

Issue: In DPA, VM CPU Ready Time is computed as the average of Ready Time of all CPU cores. In VMware, Ready Time is computed as the addition of Ready Time of all CPU cores.

Workaround: N/A

Historical data not displayed

Issue: If data is collected sporadically and there are over 30 distinct days of CONSW data that span more than 95 days, the charting engine will switch to use weekly data to generate trend charts instead of detail data. This only applies for Oracle repository databases in regions where the beginning of the week is Monday.

Workaround: Lower the value of the CLEAN_DAYS_OF_DETAIL advanced option.

Cannot add an Active Directory group if the group name includes a plus sign (+)

Issue: If you add an Active Directory or LDAP group whose name includes a plus sign (for example, "+Developers"), an error similar to the following is displayed: 

Unable to get the Repository users: javax.naming.InvalidNameException: Invalid name: CN=+developers,CN=Users,DC=ignite,DC=local

Workaround: Follow the instructions in this article to update the group name in the conusergroup table. Add a backslash (\) in front of the + character to escape it.  

Cannot register a database if it requires SSL and the network uses NTLMv2 

Issue: If a database requires SSL and the network uses NTLMv2, database registration fails with the following message: 

Database connection failed: A connection to the database could not be established: Invalid user and/or password

Workaround:

  1. On the Enter Monitored Database Instance Connection Information step of the Register Instance wizard, click Advanced Connection Properties. 
  2. In the JDBC URL Properties box, enter:
    useNTLMv2=true;ssl=request
  3. Click OK and complete the wizard.

Frequent polling interval causes database summarization to fail with an error

Issue: If you are monitoring an instance that supports blocking and the polling interval is very frequent, summarization fails with the following error, and DPA cannot display trend data:

TrendSummarizerManager - Summarize database failed due to [/ by zero]
java.lang.ArithmeticException: / by zero

This issue occurs if the QUICK_POLL_INTERVAL is set to any of the following values:

  • 5 polls per second
  • 3 polls per second
  • 2 polls per second

Workaround: Set the QUICK_POLL_INTERVAL value to a less frequent interval.

  1. Click Options.
  2. On the Administration tab, click Advanced Options.
  3. On the DP Instance Options tab, select the database instance that is experiencing the issue.
  4. Click the QUICK_POLL_INTERVAL option. 
  5. Choose a less frequent polling interval (1 poll per second, 30 polls per minute, etc.). 

End of support

For information about supported versions of SolarWinds products, see this article.

SolarWinds' policy is to support the current and two previous versions of DPA. SolarWinds does not support DPA 10.0 and earlier.

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Last modified
09:31, 12 Jun 2017

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