I have been testing and setting up CDCR replication between Solrcloud instances.
We are currently using Solr 6.2 We have a lot of collections and a number of environments for testing and deployment. It seemed that using properties in the cdcrRequestHandler would help a lot. Since we have a naming convention and collection names should be the same between clouds I tried using property names for the source and target collection, and for the target Zookeeper. We also use the Config-API to create and change the request handler. {"responseHeader": {"status": 0,"QTime": 2},"overlay": {"znodeVersion": 17," requestHandler": {"/cdcr": {"name": "/cdcr","class": " solr.CdcrRequestHandler","replica": {"zkHost": "${targetZk}","source": "${solr.core.collection}","target": "${solr.core.collection}"},"replicator ": {"threadPoolSize": 2,"schedule": 500,"batchSize": 128}," updateLogSynchronizer": {"schedule": 60000}}},"userProps": {"targetZk": " stldeepx06.sial.com:2181/solr"}}} I cannot get this to work unless I remove all the property definitions and use the real names: This works: {"responseHeader": {"status": 0,"QTime": 2},"overlay": {"znodeVersion": 17," requestHandler": {"/cdcr": {"name": "/cdcr","class": " solr.CdcrRequestHandler","replica": {"zkHost": " stldeepx06.sial.com:2181/solr","source": "sial-catalog-product","target": " sial-catalog-product"},"replicator": {"threadPoolSize": 2,"schedule": 500," batchSize": 128},"updateLogSynchronizer": {"schedule": 60000}}}}} replication fails when any of the parameters are properties. Even though the documentation has an example that uses properties. https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=62687462#CrossDataCenterReplication(CDCR)-InitialStartup This seems like a defect, at least a problem with the docs, but I would expect properties to work, or is it just that it doesn't work with the Config-API? Thanks, Web -- This message and any attachment are confidential and may be privileged or otherwise protected from disclosure. If you are not the intended recipient, you must not copy this message or attachment or disclose the contents to any other person. If you have received this transmission in error, please notify the sender immediately and delete the message and any attachment from your system. Merck KGaA, Darmstadt, Germany and any of its subsidiaries do not accept liability for any omissions or errors in this message which may arise as a result of E-Mail-transmission or for damages resulting from any unauthorized changes of the content of this message and any attachment thereto. Merck KGaA, Darmstadt, Germany and any of its subsidiaries do not guarantee that this message is free of viruses and does not accept liability for any damages caused by any virus transmitted therewith. Click http://www.merckgroup.com/disclaimer to access the German, French, Spanish and Portuguese versions of this disclaimer.