Issues fixed in MarkLogic Server 9.0-10.2

Old journal archive directories not purged by scheduled backups.

Alternate journal archive directories are not automatically purged of old subdirectories in scheduled backups.

Segmentation fault in QueryPathVector::setTimeLimit

Linux cached pages more aggressively freed after reads

On Linux, to assist kernel memory management, MarkLogic now makes additional kernel calls advising of file pages it likely doesn't need. MarkLogic now advises it specifically doesn't need large data file pages immediately after it completes random-access reads of them. The intent is for the kernel to use this advice to more efficiently free memory from the page cache.

Failing forests back causes a prolonged database outage

Failing forests back can lead to a database outage on the order of minutes.

More stable cluster heartbeat

Now using more concurrency when broadcasting heartbeats to other hosts. This make heartbeats more reliably delivered from healthy hosts to healthy hosts in the cluster. And prevents unhealthy hosts in the cluster from causing other hosts to be unhealthy. Resulting in fewer XDQP restarts.

Obsolete stands not cleared

In certain circumstances, stands no longer in use are not cleared or are only cleared after an extended periond of time.

Unable to deploy DataHub project containing empty collations

Deploying DataHub project causes a segmentation fault in the implementation of xdmp:collation-canonical-uri

Segmentation fault in xdmp::ParseNode::rethrow