The store type aggregatingStore implemented by the class de.acosix.alfresco.simplecontentstores.repo.store.combination.AggregatingContentStore is for the most part identical to the default Alfresco class org.alfresco.repo.content.replication.AggregatingContentStore. It allows for content to be written to one primary content store, but read from multiple stores. This can be used e.g. in scenarios where a previous content store partition / disk has grow full and a new partition / disk is added later one to take over write load, while existing content can still be accessed from the old partition / disk.
This type of store provides the following small enhancements over the default Alfresco store implementation:
- content deletion also processes content in secondary stores (configurable)
- removal of unnecessary code (read-only locking during retrieval of content reader)
- check of content URL support also checks secondary stores, avoiding situations were client code may opt to not call getReader for an existing content only because isContentUrlSupported incorrectly yielded false
This type of store can only be used as a facade to two or more stores.
This store can be selected by using the store type aggregatingStore.
| name | type | description | default | optional |
|---|---|---|---|---|
| primaryStore | ref | the (physical) store that content is both written to and read from | no | |
| secondaryStores | list(ref) | the (physical) stores that content is read from | no | |
| deleteContentFromSecondaryStores | boolean | true/false to mark if content deletion should attempt to delete from secondary stores as well as the primary store |
true |
yes |
simpleContentStores.enabled=true
simpleContentStores.customStores=nas1FileStore,nas2FileStore,myAggregatingStore
simpleContentStores.rootStore=myAggregatingStore
simpleContentStores.customStore.myAggregatingStore.type=aggregatingStore
simpleContentStores.customStore.myAggregatingStore.ref.primaryStore=fileContentStore
simpleContentStores.customStore.myAggregatingStore.list.ref.secondaryStores=nas1FileStore,nas2FileStore
simpleContentstores.customStore.myAggregatingStore.deleteContentFromSecondaryStores=false
simpleContentStores.customStore.nas1FileStore.type=standardFileStore
simpleContentStores.customStore.nas1FileStore.value.rootAbsolutePath=/mnt/nas1/alfresco/alf_data/contentstore
simpleContentStores.customStore.nas1FileStore.value.readOnly=true
simpleContentStores.customStore.nas2FileStore.type=standardFileStore
simpleContentStores.customStore.nas2FileStore.value.rootAbsolutePath=/mnt/nas2/alfresco/alf_data/contentstore