Solr actuators

Readiness endpoint to be used as load balancer check.

Solr is considered ready when it is "almost" ready with tracking alfresco. and that is done in 3 steps of validation :

• TX_LAG_VALIDATION by calculating the Tx lag and verifying that it is smaller than MAX_LAG.
• CHANGE_SET_LAG_VALIDATION by calculating the ChangeSet lag and verifying that it is smaller than MAX_LAG.
• REPLICATION_VALIDATION by following the restore status provided by the replication handler.

The script is available at:

alfresco/xenit/actuators/readiness

In order to check the health of solr server, the out-of-the-box ping handler can be used.

alfresco/admin/ping

Usage

Status code is to be used for the health check: 200 if ready or 503 if not yet ready.

The output of the script offers additional information if being ready as well as information about current tracker status (when parameter info is appended to the query).

• the MAX_LAG can be set via environment variable READINESS_MAX_LAG it is set to default to 1800000 in milliseconds ( 30 minutes).

• the TX_LAG_VALIDATION can be Disabled via environment variable READINESS_TX_LAG_VALIDATION_ENABLED it is set to default to true.

• the CHANGE_SET_LAG_VALIDATION can be Disabled via environment variable READINESS_CHANGE_SET_LAG_VALIDATION_ENABLED it is set to default to true.

• the REPLICATION_VALIDATION can be Disabled via environment variable READINESS_REPLICATION_VALIDATION_ENABLED it is set to default to true.

How to run integration tests

./gradlew integrationTest