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INC-130304 · Issue 567924

Retry logic added for downloading upgraded rules

Resolved in Pega Version 8.1.9

A Rules upgrade failed while downloading applications from the maintenance server due to an SFTP server connection failure. This has been resolved by adding logic to retry if the first connection attempt fails.

INC-130695 · Issue 587659

Enhancements for upgrading in multi-tenant environment

Resolved in Pega Version 8.1.9

Some muti-tenant installations use the same applications or rule instances with the same pzInsKeys for different tenants. This can cause upgrades to time out due to the system fetching all pzInsKeys (which will have duplicates) and working with them in a default batch size of 500 each over 4 threads. This led to the same keys potentially being allocated and processed in different threads, resulting in duplicate processing and timeouts. This has been resolved by updating the select query to fetch the tentantid and pzInskeys in the MT system to avoid duplicate work in multiple threads. In addition, running Generate Declarative indexes fetches the pzinskeys and generates indexes for each record, but before generating, the existing index for the record is deleted and then inserted. Because the delete query to generate the index was not tenant aware, all of the records for the key were deleted for the tenants for that key, but the new index was created only in one tenant. This has been resolved by enhancing the DELETE query to be tenant aware, which will avoid deleting the indexes for all the tenants given an index key.

INC-132218 · Issue 573359

Resolved buffer overflow for Migration loadDatabase

Resolved in Pega Version 8.1.9

A Rules upgrade failed in the Migration step at loadDatabase stage, involving the move of all the table records from old schema to new schema. This was traced to the inability of Migration to load blob of sizes more than 100 MB, and has been resolved by updating Migration to use byte[] to read the blob content with the help of metadata that contains blob length.

INC-133202 · Issue 574701

TableRenameUtil hashing improved

Resolved in Pega Version 8.1.9

During index name generation, the algorithm that was responsible for index name uniqueness was sometimes insufficient and cerated a loop condition. This has been resolved by using a stronger hash algorithm and refactoring the code that could result in a loop.

SR-D84364 · Issue 551402

Check for circular references added to SearchInventoryImpl to prevent recursive call

Resolved in Pega Version 8.1.9

An out of memory error was traced to SearchInventoryImpl infinitely recursing over a clipboard property, where the child property referenced a parent property and resulted in an endless loop. This has been resolved with the addition of a depth check to ensure that the search does not recurse infinitely.

INC-167311 · Issue 646477

Updated upgrade handling for migrating work objects

Resolved in Pega Version 8.3.6

After upgrading from Pega 6.2 to 8.3, the work migrated work objects were missing SLAs due to missed entries in the assignment tables (PC_ASSIGN_WORKLIST/ PC_ASSIGN_WORKBASKET) . The SLA was firing, but the processing failed due to the fact the runtime could not resolve a 'AddHistoryPage' library function. In this case, multiple upgrades of the application dating back to Pega 4 resulted in the runtime context containing older ruleset versions in higher ruleset versions, hiding the underlying Pega 8 version of the rule. For releases prior to Pega 7.3, Rule-Application was stored in pr4_rule and will be migrated to pr4_rule_application during upgrades. However, since Context Upgrade is run before Optimize Newly Exposed Columns, the pyDependsOnName won't always be populated. To resolve this, the system will filter based on the value in the blob rather than the exposed column so there will be a value regardless of the upgrade-from version.

INC-172675 · Issue 649451

Configuration added for extending queue processor timeout

Resolved in Pega Version 8.3.6

Alerts for queue processor (QP) items which took more than 15 minutes to run could result in the system marking the node as 'unhealthy'. In environments with Pega Health Check enabled, this would shut down the node gracefully. It was not possible to change this default as it was hardcoded. In order to support systems that may have custom processes that run beyond 15 minutes, a a new setting has been exposed that allows configuration of the interval after which a node with long-running queue processor is marked as unhealthy and is restarted. By default this remains 900000 milliseconds / 900 seconds / 15 minutes, but it may be adjusted up to 24 hours to avoid premature node shutdown. The stale thread detection mechanism will take that setting into account and use the provided value or default to 15 minutes if the value was not provided. In addition, the threshold's units in the UI have been changed from ms to seconds.

SR-119963 · Issue 176108

Corrected record imports in multitenant environment

Resolved in Pega Version 7.1.8

In the multitenant environment, reimporting an operator record using application -> import was causing an 'IntegrityConstraintViolationException' exception. This was caused by the query not being properly tenant-qualified for the environment, and has been corrected.

SR-121277 · Issue 181001

Deployment user privileges updated for upgrades

Resolved in Pega Version 7.1.8

When attempting to upgrade some installations, the upgrade script was failing while trying to determine the current PRPC version. This was caused by the deployment user lacking the DBA privileges to read/write the tables in the rules and data schema, and has been updated.

SR-121709 · Issue 179068

New default directory setting added to DDL generation

Resolved in Pega Version 7.1.8

If the DDL for a new PRPC installation was generated without using the optional parameter for the file location, the file was created in the root directory. To avoid this, a default gen_dir setting (./schema/generated) has been added to generateDDL.sh to handle cases when the parameter has not been set.

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