SR-116508 · Issue 170253
Large flow handling improved for IE8
Resolved in Pega Version 7.1.7
When opening a large flow in IE8 which includes multiple sub flows, a long-running script warning is displayed. This is caused by too many calls being executed at once on IE8, and has been remedied by turning on the asyncProcessing parameter for IE8.
SR-116818 · Issue 167121
Corrected swim lane routing with shapes
Resolved in Pega Version 7.1.7
While using swim lanes, adding shapes into the flow caused unexpected and random behavior of the process modeler including failure to return control to the user after saving. This error was related to routing handling when swim lanes are present, and has been corrected.
SR-117228 · Issue 168249
Resolved issues with Flow shapes distributed across Swim Lanes
Resolved in Pega Version 7.1.7
Pool size is maintained as both pixels and inches, but auto conversion was failing if the pool dimension was very large. This created an error where saving a flow rule could cause the pool to drastically shrink (for example, 20 inches becoming 20 pixels). In order to maintain the proper dimensions, a check has been added for pool and swimlane to ensure the proper inch/pixel conversions.
INC-141579 · Issue 591852
Enhancement added for node heartbeat recovery process
Resolved in Pega Version 8.3.5
Nodes were not showing up in the admin portal even though they were up and running and could be seen in the pr_sys_statusnodes table. The exception "An exception was encountered while invoking the cluster membership listener callback" was seen. All nodes became visible again after multiple restarts. The root cause was traced back to a temporary database connectivity problem. The database itself was fine according to database monitoring reports, but a network problem, a slow database query, or another issue prevented Pega from establishing a connection for more than a minute. An enhancement has been made to resolve this: if a node becomes unhealthy due to the service registry missing due to a failed heartbeat, the heartbeat will try to recover after 60 seconds and keep trying every 30 seconds until it succeeds.
INC-142674 · Issue 594496
Enhancement added for node heartbeat recovery process
Resolved in Pega Version 8.3.5
Nodes were not showing up in the admin portal even though they were up and running and could be seen in the pr_sys_statusnodes table. The exception "An exception was encountered while invoking the cluster membership listener callback" was seen. All nodes became visible again after multiple restarts. The root cause was traced back to a temporary database connectivity problem. The database itself was fine according to database monitoring reports, but a network problem, a slow database query, or another issue prevented Pega from establishing a connection for more than a minute. An enhancement has been made to resolve this: if a node becomes unhealthy due to the service registry missing due to a failed heartbeat, the heartbeat will try to recover after 60 seconds and keep trying every 30 seconds until it succeeds.
INC-137255 · Issue 584910
Resolved Cassandra query read/write latency
Resolved in Pega Version 8.3.5
Read/write latency was seen when certain Cassandra queries were triggered by the system. This was traced to an unusual case where a flush was not done for an exceptionally long time period, and has been resolved.
INC-129910 · Issue 582545
Improved performance for Queries on VBD keyspace
Resolved in Pega Version 8.5.2
Unrestrained VBD queries were causing poor performance for very large Cassandra clusters. This was traced to queries which were not restrained with a WHERE clause, and has eben resolved by updating two identified Cassandra queries that do not contain WHERE clauses to operate within token ranges rather than across the entire Cassandra cluster.
INC-136634 · Issue 591678
Thread contention resolved for InteractionHistoryQuery
Resolved in Pega Version 8.5.2
High thread contention was observed while running Inbound load tests. This was traced to pzLoadInteractionHistory invoking a generated strategy to retrieve ihFields from InteractionHistoryQuery using the getUsedInteractionHistoryFields() method: because this method is synchronized, it caused a bottleneck. To resolve this, the synchronized methods have been replaced with the appropriate data structures.
INC-138501 · Issue 592287
Added VBD support for CSRF token setting
Resolved in Pega Version 8.5.2
Attempting to open any VBD reports in the marketing portal for a simulation test caused the user to be logged out. Investigation showed that this happened when CSRF token check was enabled in System > Settings > Cross-Site Request Forgery, and was caused by the planner not passing the CSRF tokens in its Ajax calls. To resolve this, handling for the CSRF tokens has been added to the necessary Ajax calls.
INC-139574 · Issue 606141
Exception handling added for dataflow rule assembly
Resolved in Pega Version 8.5.2
A Blue Screen error was coming up in the Customer Service Web Chat Application after an agent accepted the incoming chat request and sent messages in the chatbox in the Interaction portal. This has been resolved by adding handling for exceptions that occur when inlining templates during dataflow rule assembly, when inlining templates, we weren't handling exceptions properly.