Background: What is a Failure?
A Failure is Temporal's representation of various types of errors that occur in the system.
There are different types of Failures, and each has a different type in the SDKs and different information in the protobuf messages (which are used to communicate with the Temporal Cluster and appear in Event History).
The Temporal Cluster and SDKs emit metrics that can be used to monitor performance and troubleshoot issues. To collect and aggregate these metrics, you can use one of the following tools:
After you enable your monitoring tool, you can relay these metrics to any monitoring and observability platform.
The current Run Id is mutable and can change during a Workflow Retry. You should not rely on storing the current Run Id, or using it for any logical choices, because a Workflow Retry changes the Run Id and can lead to non-determinism issues.
We added support for Elasticsearch v7+ (ES7) in the v1.7.0 update to the Temporal Server. Elasticsearch v7 introduces several breaking changes, including the removal of mapping types. These changes make Elasticsearch v6 incompatible with Elasticsearch v7.
This page highlights the key differences between Cadence and Temporal that you will need to account for when migrating.