Improved Behavior when OWL Stats Enabledīackground: In order to produce performant query execution plans, AnzoGraph gathers basic statistics about data that is loaded, such as the number of triples per graph and number of distinct subjects and predicates. This section describes the improvements and issues that were fixed in AnzoGraph Version 4.3.4. In Version 4.3.6, the inference process filters out triples that are created with a literal value in the subject position so that all triples are valid and can be inserted into the database. In previous versions, if RDFS+ Inferencing was run on a data set that included some invalid string values that should have been URIs, an inference rule could produce a triple with a string value in the subject position, and the new triple could not be inserted into the graph. Ensure Inferencing Does Not Create Triples with Literal Subjects The communications framework now sends a message between nodes every hour to keep cluster connections alive if the cluster is not in use. In Version 4.3.6, a mechanism was added to keep TCP/IP connections active when a cluster is idle. In previous versions, if an AnzoGraph cluster was left idle for a significant period of time, one or more of the compute nodes could drop their connections to each other and cause the cluster to go offline.
![avg update failed not enough memory avg update failed not enough memory](http://blog.mlinar.biz/wp-content/uploads/2012/02/1_thumb2.jpg)
Keep-Alive Mechanism for Cluster Communications This section describes the improvements and issues that were fixed in AnzoGraph Version 4.3.5 and 4.3.6. Version 4.3.7 resolves the issue to ensure that only one thread creates the crashdump. In previous versions, there was a circumstance where a crashdump could be corrupted when multiple threads tried to create the diagnostic files at the same time. This section describes the improvements and issues that were fixed in AnzoGraph Version 4.3.7.
![avg update failed not enough memory avg update failed not enough memory](https://www.techyv.com/sites/default/filesx/users/Techyv-Images/Not-enough-quota-AVG-PC-TuneUp-Program-Deactivator.jpeg)
Version 4.3.8 resolves the issue by ensuring that AnzoGraph does not try to release the same resource more than once. The double-free of resources resulted in a crash.
#AVG UPDATE FAILED NOT ENOUGH MEMORY FREE#
When AnzoGraph canceled a query because there was insufficient memory available, there was a circumstance where AnzoGraph could try to free the same memory resource twice.
![avg update failed not enough memory avg update failed not enough memory](https://www.security.org/wp-content/uploads/2020/12/AVG_Webcam-Vulnerable.jpg)
Version 4.3.8 resolves the issue so that status checks do not fail when AnzoGraph is low on resources.
#AVG UPDATE FAILED NOT ENOUGH MEMORY OFFLINE#
That made AnzoGraph appear offline to Anzo. The issue occurred because Anzo was periodically checking AnzoGraph's status, and in a low-memory situation, AnzoGraph's system manager could fail to authenticate. Occasionally, Anzo and AnzoGraph could disconnect when AnzoGraph memory usage was high. Anzo Disconnected from AnzoGraph when Memory Usage High This section describes the improvements and issues that were fixed in AnzoGraph Version 4.3.8.
![avg update failed not enough memory avg update failed not enough memory](https://www.partitionwizard.com/images/uploads/articles/2021/09/star-citizen-installer-error/star-citizen-installer-error-2.png)
Stability Improvements for Low Memory Conditions This section describes the improvements and issues that were fixed in AnzoGraph Version 4.3.9. The release notes for each version describe the product changes from the previous version. To view the release notes for an AnzoGraph 4.x version, select the version from the list below.