. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Semi-Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >/vitess.git (fetch) origin git@github.com:/vitess.git (push) To help you keep your fork in sync with the main repo, add an upstream remote: $ git remote add upstream git@github.com:vitessio/vitess git@github.com:vitessio/vitess.git (fetch) upstream git@github.com:vitessio/vitess.git (push) Now to sync your local master branch, do this: $ git checkout master (master) $ git pull upstream master Note:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Semi-Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >/vitess.git (fetch) origin git@github.com:/vitess.git (push) To help you keep your fork in sync with the main repo, add an upstream remote: $ git remote add upstream git@github.com:vitessio/vitess git@github.com:vitessio/vitess.git (fetch) upstream git@github.com:vitessio/vitess.git (push) Now to sync your local main branch, do this: $ git checkout main (main) $ git pull upstream main Note: In the

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Semi-Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >/vitess.git (fetch) origin git@github.com:/vitess.git (push) To help you keep your fork in sync with the main repo, add an upstream remote: $ git remote add upstream git@github.com:vitessio/vitess git@github.com:vitessio/vitess.git (fetch) upstream git@github.com:vitessio/vitess.git (push) Now to sync your local master branch, do this: $ git checkout master (master) $ git pull upstream master Note:

>/vitess.git (fetch) origin git@github.com:/vitess.git (push) To help you keep your fork in sync with the main repo, add an upstream remote: $ git remote add upstream git@github.com:vitessio/vitess git@github.com:vitessio/vitess.git (fetch) upstream git@github.com:vitessio/vitess.git (push) Now to sync your local main branch, do this: $ git checkout main (main) $ git pull upstream main Note: In the TabletServer will make the vitess architecture more flexible. There are many places in the code where we instantiate a QueryService. All those places can now explore the benefit of instantiating a TabletServer or

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Semi-Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >/vitess.git (fetch) origin git@github.com:/vitess.git (push) To help you keep your fork in sync with the main repo, add an upstream remote: $ git remote add upstream git@github.com:vitessio/vitess git@github.com:vitessio/vitess.git (fetch) upstream git@github.com:vitessio/vitess.git (push) Now to sync your local master branch, do this: $ git checkout master (master) $ git pull upstream master Note:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Semi-Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >/vitess.git (fetch) origin git@github.com:/vitess.git (push) To help you keep your fork in sync with the main repo, add an upstream remote: $ git remote add upstream git@github.com:vitessio/vitess git@github.com:vitessio/vitess.git (fetch) upstream git@github.com:vitessio/vitess.git (push) Now to sync your local master branch, do this: $ git checkout master (master) $ git pull upstream master Note:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Semi-Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >/vitess.git (fetch) origin git@github.com:/vitess.git (push) To help you keep your fork in sync with the main repo, add an upstream remote: 37 $ git remote add upstream git@github.com:vitessio/vitess git@github.com:vitessio/vitess.git (fetch) upstream git@github.com:vitessio/vitess.git (push) Now to sync your local master branch, do this: $ git checkout master (master) $ git pull upstream master Note:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Semi-Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >/vitess.git (fetch) origin git@github.com:/vitess.git (push) To help you keep your fork in sync with the main repo, add an upstream remote: $ git remote add upstream git@github.com:vitessio/vitess git@github.com:vitessio/vitess.git (fetch) upstream git@github.com:vitessio/vitess.git (push) Now to sync your local master branch, do this: $ git checkout master (master) $ git pull upstream master Note:

GetKeyspacesRequest{}) c.topoReadPool.Release() if err != nil { return nil, err } var ( m sync.Mutex wg sync.WaitGroup rec concurrency.AllErrorRecorder keyspaces = make([]*vtadminpb.Keyspace, len(resp HTTP handlers for profiling _ "net/http/pprof" "net/url" "os" "os/signal" "runtime/debug" "strings" "sync" "syscall" "time" Vitess is working on fixing this. It has been partially fixed in https://github

orderBy, insert, delete, update. • cross-shard index • cross-shard joins • distribute transaction • sync replication • part of second index Vitess 参考资料 • https://code.google.com/p/vitess/ • https://github