Abstract: The method of connection establishment method in data transmission between micro-services in cloud ensures reducing connection complexity between client instances and server instances, increasing the number of connections which helps increase data transmission performance. Besides, the method helps ensure load balancing when server instances change or in time of failure. The proposed method includes the following steps: step 1: data preparation; Step 2: build connection data table; Step 3: select the appropriate connection when receiving a request to send data from the client; step 4: periodically queries the independent service management, updating the current state of the server instances.

Abstract: Serving a search result is disclosed. A security fingerprint of a security configuration is generated. The security fingerprint is concatenated with a query having a search term and a search result is returned that includes both the search term and the security fingerprint.

Abstract: Serving a search result that includes an access controlled document includes obtaining a persistent access token that permits the verification of access to an access controlled document. The access controlled document is found in an index that includes an access controlled document and the persistent access token is used to verify authorization to access the access controlled document.