This symmetric key must already exist in the database and must be open. This asymmetric key must already exist in the database. Because of this, keys that are created with a strong encryption algorithm, such as AES, are themselves secured by a weaker algorithm.
It is never possible for a key to be entirely without encryption. For this reason, the best practice is to add the new form of encryption before removing the old form of encryption. The RC4 algorithm is only supported for backward compatibility. The report server uses the public keys available to it to update the symmetric key for each server in the deployment. You can only recreate the symmetric key when the report server is in a working state.
Recreating the encryption keys and re-encrypting content disrupts server operations. You must take the server offline while re-encryption is underway. There should be no requests made to the report server during re-encryption. You can use the Reporting Services Configuration tool or the rskeymgmt utility to reset the symmetric key and encrypted data.
This step temporarily stops authentication requests from being sent to the report server without completely shutting down the server. You must have minimal service so that you can recreate the keys. If you are recreating encryption keys for a report server scale-out deployment, disable this property on all instances in the deployment. Start the Reporting Services Configuration tool, and then connect to the report server instance you want to configure.
Restart the Report Server Windows service. If you are recreating encryption keys for a scale-out deployment, restart the service on all instances. Do this for all instances if you are working with a scale out deployment. Use the instructions in the previous procedure to stop Web service operations. I solved my own problem. I needed to grant data reader rights to that database for the user. In there I go to User Mapping. J The documentation provides an answer through kind of a back-door.
As you mentioned, for shards: For write optimization, choose a shard-key that has high cardinality. For query isolation, choose a shard-key that allows the mongos instance to route the query to as few shards as possible.
It goes into a few more details, which are relevant to what you're looking for. When attempting query isolation, always include the full shard-key in queries as it allows mongos to provide optimization.
If you don't, it will query all shards. If your preferred shard-key is not sufficiently cardinal, adding another field that does have sufficient cardinality to create a compound key will allow more efficient write-spreading. The easiest gain here is to include the shard-key in all queries, even if you don't need the data in the query. This allows you to get the benefits of optimization without having to rewrite your query system to include cluster metadata.
You certainly can write a query-optimizer that uses cluster metadata. It is very possible to get the number of chunks in a specific collection and even get the chunk boundaries. You'll have to track the state of chunks in your collection since they will update from time to time, but it would allow you to write queries that only hit one shard at a time. However, that's a lot of work and the gains you get may not be worth the extra engineering effort.
Only you can tell if that's an optimization that's worth it to pursue. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. This article helps you resolve the problem that occurs when you reset Report Server service account. When you work with a computer that is running Microsoft SQL Server, you may receive the following error message in the Report Server service trace log:.
An internal error occurred on the report server. See the error log for more details. Additionally, you may receive the following error message in the Report Server service trace log:.
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