replication

问题 I am trying to set up replication between SQL Server 2008 and MYSQL. I have installed a MySQL ODBC 5.1 driver on the MySQL server. Initially I was trying to just set up a linked server between the two databases which is working fine. However now I am trying to set up replication in SSMS. I have created a simple publication but I am having problems setting up the subscriber. The only heterogeneous datasources it seems I can set up under Oracle and IBM. I do however think that I should be able

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . I am trying to develop a network safe decentralized replication based distributed system. I am looking for a java library with

问题 I need a multi master database to let users talk from different continents. Each user will write his data to his local master database and it will replicate data to other master databases in other counties/continents. The problem is that I can't store all copies of all users data in all data centers. I need something like a database/solution which will let me to set a replication level. I need to have ability read any data from any nodes but store data on several nodes (on 3 nodes but not on

问题 I am tasked with building an application whose database backend needs to be replicated in both directions over an unknown number of clients who are usually offline. Before I explain in detail, my question is whether MySQL replication is feasible for this project or if I should look into other technologies. Here's the general use case: User installs software on personal laptop. User loads data from the master database server onto her laptop. User disconnects from the network and proceeds to

问题 First of all thanks for reading. I need to replicate a subset of data that is based on a join filter; filter based on a join with an other table (Microsoft:"Using join filters, you can extend a row filter from one published table to another."). This is the setting: SQL Server 2012; replication sources on a subscription of a transaction replication replication needs to be one direction sync (from publisher to subscriber); only one subscriber/subscription; small dataset with not many

问题 I have a set of Pods running commands that can take up to a couple seconds. There is a process that keeps track of open request & which Pod the request is running on. I'd like the use that information when scaling down pods - either by specifying which pods to try to leave up, or specifying which pods to shut down. Is it possible to specify this type of information when changing the # of replicas, e.g. I want X replicas, try not to kill my long running tasks on pods A, B, C? 回答1: i've been

问题 I have 12 databases totaling roughly 1.0TB, each on a different physical server running SQL 2005 Enterprise - all with the same exact schema. I need to offload this data into a separate single database so that we can use for other purposes (reporting, web services, ect) with a maximum of 1 hour latency. It should also be noted that these servers are all in the same rack, connected by gigabit connections and that the inserts to the databases are minimal (Avg. 2500 records/hour). The current

问题 I've got multiple identical databases (distributed on several servers) and need to gather them to one single point to do data mining, etc. The idea is to take Table1 , Table2 , ..., TableN from each database and merge them and put the result into one single big database. To be able to write queries, and to know from which database each row came from we will add a single column DatabaseID to target table, describing where the row came from. Editing the source tables is not an option, it

问题 When using mongodb in a replica set configuration (1 arbiter, 1 primary, 2 slaves); how do I set a preference that read be performed against the secondaries and leave the primary only for writes? I'm using MongoDb 2.0.4 with Morphia. I see that there is a slaveOk() method, but I'm not sure how that works. Morphia http://code.google.com/p/morphia/ Details My Mongo is set with the following options: mongo.slaveOk(); mongo.setWriteConcern(WriteConcern.SAFE); I am attempting to use the following

问题 I have a big Lotus Notes company database containing sensitive data and I want to prevent normal users to replicate this database locally. Explanation of the main problems : sensitive data on laptop server deleted documents reappear if the purge interval is more frequent than local replications server deleted documents reappear if users modify them locally These solutions are NOT working in my context : uncheck the "replicate or copy documents" in the ACL for users. If done, users cannot copy