SR-D49537 · Issue 521112
Embedded Pega Chat error resolved
Resolved in Pega Version 8.2.6
A cross-origin frame error was shown when the Pega Chat Window was embedded in a non-Pega page. Investigation traced the issue to code that was accessing the top/parent window, and which failed when used in a mashup scenario. This has been resolved with a try/catch block to wrap the code and handle scenarios where the
SR-D49782 · Issue 518048
Extension point added for ClearInteraction to support custom interactions
Resolved in Pega Version 8.2.6
In order to support clearing a custom interaction page after clicking the "Reset" button on preview console, an extension point has been added to pyClearInteraction.
SR-D57865 · Issue 520963
Added property check for outbound templated email reply
Resolved in Pega Version 8.2.6
When a template was used for the first time for outbound correspondence, email was generated correctly. If the same template was used as the content for reply, the generated email skipped all styles. This was traced to a missing property check, and has been resolved.
SR-D63638 · Issue 544016
Performance improvements for opening cases with embedded images
Resolved in Pega Version 8.2.6
Opening cases containing email interactions was taking an excessive amount of time. This was traced to the use of embedded images, icons, etc, in the message body and signature, and was caused by the pyGetAttachmentsbyCID activity running multiple times due to discussion threads that were duplicated over and over. In some cases, more than 360 calls to the database were seen. This has been resolved by shifting some case opening processes to executing when the listener thread gets the mail, and storing the results in a .pynote property, and a URL will be used to get images instead of embedding them directly to the HTML. If preferred, this can be reverted to the previous behavior by changing the when rule (pyUseCachedHtmlForDisplay) to false.
SR-D42451 · Issue 518067
ExecuteRDB call updated to use NativeSQL for blob
Resolved in Pega Version 8.2.6
After creating a test activity to clear data set records that used the DataSet-Execute method and passed the data set name and truncate operation, only 51 records were deleted in a single run when the data set had more than 51 records. Investigation showed that for blob tables, the database truncate operation was using executeRDB with an empty results page, i.e. it didn't specify pyMaxRecords, which on some databases might have limited the number affected records. To resolve this, the executeRDB call in the database truncate operation has been modified to use NativeSQL for blob tables.
SR-D45608 · Issue 519901
Correct service instance name passed for data flow in DSMStatus
Resolved in Pega Version 8.2.6
When using the Connect-HTTP service "DSMStatus" to provide the node and status information as seen on the various tabs of the Designer Studio > Decisioning > Infrastructure > Services landing page, using DataFlow as the service parameter for the HTTP service method resulted in an empty response when the expectation was to get the information regarding the cluster details of Dataflow node type. This was traced to the service instance name not being parsed correctly when used for Data Flow services, and has been resolved by ensuring the correct service instance name is passed for this use.
SR-D54218 · Issue 518600
Deadlock in static Initialization of IntList resolved
Resolved in Pega Version 8.2.6
JVM Deadlock was seen related to the static Initialization of a subclass field in class com.pega.decision.strategy.ssa.runtime.collections.api.IntList . Thread dumps showed threads in RUNNABLE State that were parked to wait for class initialization, and this was traced to a missed sonar alert which failed in multi-threading. To resolve this, the system handling has been updated to prevent potential deadlock.
SR-D57822 · Issue 524199
Internal Cassandra memory leak fixed
Resolved in Pega Version 8.2.6
A memory leak was found on internal Cassandra that caused temporary log files to fill up the heap. This has been resolved by updating the system to ignore non-log files and properly increment the index.
SR-D60268 · Issue 521461
Performance and thread-handling improvements for SSA
Resolved in Pega Version 8.2.6
The SecureRandom class was used internally by SSAExecutionContext indirectly via UUID generation. Because this exhibited performance issues on some Linux environments, UUID has been replaced with static AtomicLong. In addition, a memory leak was observed when the strategy (SSA) execution resulted in an exception, and the strategy template has been modified to gracefully shutdown the VM under all circumstances. Thread-safety measures have also been tuned to be more fine-grained to reduce the potential thread contention that was seen while borrowing the SSAInterpreter object from SSAInterpreterPool.
SR-D66397 · Issue 530332
ADM out-of-sync corrected for multi-datacenter Cassandra cluster
Resolved in Pega Version 8.2.6
After setting up the multi-datacenter configuration for a Cassandra cluster that consisted of six nodes in datacenter 1 and three nodes in datacenter 2, failover testing revealed a mismatch in the number of ADM models stored in each datacenter. The mismatch was observed mostly in the number of records present in the "adm_scoringmodel" and "adm_response_commit_log_date_tiered" tables. When Cassandra nodes are down, the other nodes in the cluster will store hints (records to be written) for the down nodes. When these nodes come back online the hints are replayed to those nodes and the data is written. Hints are written for 3 hours, so if a node come back up within 3 hours data is recovered and repairs are not required. The gc_grace_seconds for the above tables that were getting out of sync across the two datacenters was set to zero seconds. The "gc_grace_seconds" attribute is not just used as the time for removal of tombstones, it's also used to set the TTL for records written to the system.hints table. That meant that when the hints were written for the ADM tables for the nodes that were down, they were immediately expired since it was set to 0 and not played back when the terminated nodes restarted and joined the cluster. This has been resolved with this fix for all customers new to this release. Existing customers already on v7.3 or higher will need to complete the local change detailed below:Connect to the Cassandra cluster using cqlsh in the Pega Cassandra distribution and then run ALTER TABLE adm_commitlog.adm_response_commit_log_date_tiered WITH gc_grace_seconds = 86400; to change the relevant setting from zero to the equivalent of one day - the same length of time that the data in the table lives for. This will mean that any hints written can still be used to replay data to another node while the data itself is alive. It does also mean, however, that, given a constant load, a day's worth of expired ADM event data in the table will always be present on the disk, as the tombstones can now not be cleaned up for a day.