[OPT-1728] I can setup a failover scenario for Optimize Created: 19/Dec/18  Updated: 18/Apr/19  Resolved: 04/Mar/19

Status: Done
Project: Camunda Optimize
Component/s: backend, documentation
Affects Version/s: None
Fix Version/s: 2.4.0

Type: Feature Request Priority: L3 - Default
Reporter: Johannes Heinemann Assignee: Unassigned
Resolution: Done Votes: 0
Labels: SUPPORT
Σ Remaining Estimate: Not Specified Remaining Estimate: Not Specified
Σ Time Spent: Not Specified Time Spent: Not Specified
Σ Original Estimate: Not Specified Original Estimate: Not Specified

Issue Links:
Depedendency
depends on OPT-1918 Implement a distributed user session Done
Related
Sub-Tasks:
Key
Summary
Type
Status
Assignee
OPT-1917 Disable import by engine in config Sub-task Done  
OPT-1919 Add Optimize Clustering test pipeline Sub-task Done  
OPT-1955 Clustering section in Technical Guide Sub-task Done  

 Description   

Feature description:

  • given:
    • I have several Optimize instances running with the same version which use the same Elasticsearch instance
    • Optimize instance A is used to import the data and offers the user interface to create, edit and delete entities (e.g. reports or dashboards)
    • Optimize instance B is configured to only offer the user interface and the import is disabled.
  • when:
    • Optimize instance A is failing or shutdown (e.g. due to maintenance work)
  • then:
    • I can still use B to create, edit, update or delete entities in Optimize
    • The reports are all based on the current state of the data without new data being imported to Optimize
  • such that:
    • The user has the possibility to always ensure a version of Optimize up and running, so in case one instance fails, the other one can take over.

AT:

  • optimize can be run clustered with two or more instances
  • the cluster setup specifics are documented (dedicated guide + new config params)

Hint:

  • Make sure that there are no conflicts during the index creation while running multiple instances in parallel
  • When the import is disabled the status api should return that Optimize is currently not importing
  • It should be documented how the clustering works, what are the use-cases and limitation of it

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