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There are various reasons why you may be seeing these messages:
- The serviceThreads variable in the uptime.conf file is set to a higher value than the connectionPoolMaximum parameter. Note that the connectionPoolMaximum value should be at least 10% higher than the serviceThreads value.
- Your hardware platform is saturated and can't execute tasks quickly enough.
- The average time required to complete a task is simply too long. If you have many monitors that consistently fail or reach their timeout setting, this can substantially impact the up.time task list. uptime Support can provide further information and guidance on how to improve task execution performance and optimize the size of your task list.