Abstract: Aspects of the subject matter described herein relate to client-side caching. In aspects, when a client receives a request for data that is located on a remote server, the client first checks a local cache to see if the data is stored in the local cache. If the data is not stored in the local cache, the client may check a peer cache to see if the data is stored in the peer cache. If the data is not stored in the peer cache, the client obtains the data from the remote server, caches it locally, and publishes to the peer cache that the client has a copy of the data.

Abstract: Aspects of the subject matter described herein relate to synchronizing for directory actions performed while offline. In aspects, file system objects that reside on a remote data store are made available for offline use. While offline, a client receives an indication that a directory is to be deleted or renamed. In response, the client modifies its local copy of the directory and its descendants if any and stores one or more tombstones that include information that the client can use when synchronizing the changes made to the directory when the client is reconnected to the remote data store. When the client reconnects to the remote data store, the client synchronizes changes made while offline with the remote data store. Resolution conflict mechanisms may be used during this synchronization.