eventual consistency guarantees), execute long-running data analysis tools, or perform administrative tasks (backup, restore, diff, etc.). An unsharded keyspace has effectively one shard. Vitess names the could potentially run for many days, and may be restarted if failed. This job performs the following tasks: • Dirty copy data from commerce’s customer and corder tables to customer’s tables. • Stop replication could potentially run for many days, and can be restarted if failed. This job performs the following tasks: • Dirty copy data from customer/0 into the two new shards. But rows are split based on their target

eventual consistency guarantees), execute long-running data analysis tools, or perform administrative tasks (backup, restore, diff, etc.). An unsharded keyspace has effectively one shard. Vitess names the write operations, while replicas handle read-only traffic, batch processing operations, and other tasks. Each MySQL instance within the shard should have the same data, excepting some replication lag. expected to break down their tasks into small sub-tasks. For example, instead of deleting 1,000,000 rows, an application should only delete 50 at a time. Between these sub-tasks, the application should check

substantial thoroughness was achieved and considerable efforts have gone into this test. The completed tasks are listed next. Note that a given realm yielded no results unless otherwise indicated with a specific of findings, the second approach was added as means to maximize the test coverage. As for specific tasks taken on to enrich this Phase, these can be found listed and discussed in the ensuing list. • Despite testers investigated the software system during a budgeted period of 18 days in February 2019. All tasks were completed in accordance with the specified testing methodology, namely pure code auditing in

eventual consistency guarantees), execute long-running data analysis tools, or perform administrative tasks (backup, restore, diff, etc.). An unsharded keyspace has effectively one shard. Vitess names the new proposal. The work will be published as part of the Vitess license. The following high level tasks will need to be performed. • Rename rdsFlavor->filePosFlavor: This rename will more accurately represent write operations, while replicas handle read-only traffic, batch processing operations, and other tasks. Each MySQL instance within the shard should have the same data, excepting some replication lag.

eventual consistency guarantees), execute long-running data analysis tools, or perform administrative tasks (backup, restore, diff, etc.). An unsharded keyspace has effectively one shard. Vitess names the write operations, while replicas handle read-only traffic, batch processing operations, and other tasks. Each MySQL instance within the shard should have the same data, excepting some replication lag. affect either the Shard record, or multiple tablets within a Shard (like reparenting), so multiple tasks cannot concurrently alter the data. VSchema data The VSchema data contains sharding and routing information

eventual consistency guarantees), execute long-running data analysis tools, or perform administrative tasks (backup, restore, diff, etc.). An unsharded keyspace has effectively one shard. Vitess names the handles write operations, while slaves handle read-only traffic, batch processing operations, and other tasks. Each MySQL instance within the shard should have the same data, excepting some replication lag. affect either the Shard record, or multiple tablets within a Shard (like reparenting), so multiple tasks cannot concurrently alter the data. VSchema data The VSchema data contains sharding and routing information

eventual consistency guarantees), execute long-running data analysis queries, or perform administrative tasks (backup, restore, diff, etc.). An unsharded keyspace is a keyspace with only a single shard. Vitess new proposal. The work will be published as part of the Vitess license. The following high level tasks will need to be performed. • Rename rdsFlavor->filePosFlavor: This rename will more accurately represent write operations, while replicas handle read-only traffic, batch processing operations, and other tasks. Each MySQL instance within the shard should have the same data, excepting some replication lag.

eventual consistency guarantees), execute long-running data analysis queries, or perform administrative tasks (backup, restore, diff, etc.). An unsharded keyspace is a keyspace with only a single shard. Vitess new proposal. The work will be published as part of the Vitess license. The following high level tasks will need to be performed. • Rename rdsFlavor->filePosFlavor: This rename will more accurately represent write operations, while replicas handle read-only traffic, batch processing operations, and other tasks. Each MySQL instance within the shard should have the same data, excepting some replication lag.

eventual consistency guarantees), execute long-running data analysis queries, or perform administrative tasks (backup, restore, diff, etc.). 28 An unsharded keyspace is a keyspace with only a single shard. new proposal. The work will be published as part of the Vitess license. The following high level tasks will need to be performed. • Rename rdsFlavor->filePosFlavor: This rename will more accurately represent using vtctlclient ExecuteFetchAsDba Also used implic- itly for various internal Vitess maintenance tasks (e.g. schema reloads, etc.) app_conn_pool • Max size controlled by: -app_pool_size (default 40)