automationPackage automation contains code to execute high-level cluster operations (e.g.
binlog/binlogplayerPackage binlogplayer contains the code that plays a vreplication stream on a client database.
binlog/eventtokenPackage eventtoken includes utility methods for event token handling.
binlog/grpcbinlogstreamerPackage grpcbinlogstreamer contains the gRPC implementation of the binlog streamer server component.
calleridPackage callerid stores/retrives CallerIDs (immediate CallerID and effective CallerID) to/from the Context
callinfoPackage callinfo stores custom values into the Context (related to the RPC source)
dbconfigsPackage dbconfigs provides the registration for command line options to collect db connection parameters.
dbconnpoolPackage dbconnpool exposes a single DBConnection object with wrapped access to a single DB connection, and a ConnectionPool object to pool these DBConnections.
discoveryPackage discovery provides a way to discover all tablets e.g.
dtidsPackage dtids contains dtid convenience functions.
eventsPackage events defines common structures used for events dispatched from various other package.
grpcclientPackage grpcclient contains utility methods for gRPC client implementations to use.
logzPackage logz provides an infrastructure to expose a list of entries as a sortable table on a webpage.
mysqlctl/backupstoragePackage backupstorage contains the interface and file system implementation of the backup system.
mysqlctl/cephbackupstoragePackage cephbackupstorage implements the BackupStorage interface for Ceph Cloud Storage.
mysqlctl/filebackupstoragePackage filebackupstorage implements the BackupStorage interface for a local filesystem (which can be an NFS mount).
mysqlctl/gcsbackupstoragePackage gcsbackupstorage implements the BackupStorage interface for Google Cloud Storage.
mysqlctl/grpcmysqlctlclientPackage grpcmysqlctlclient contains the gRPC1 version of the mysqlctl client protocol.
mysqlctl/grpcmysqlctlserverPackage grpcmysqlctlserver contains the gRPC implementation of the server side of the remote execution of mysqlctl commands.
mysqlctl/mysqlctlclientPackage mysqlctlclient contains the generic client side of the remote mysqlctl protocol.
mysqlctl/s3backupstoragePackage s3backupstorage implements the BackupStorage interface for AWS S3.
mysqlctl/tmutilsPackage tmutils contains helper methods to deal with the tabletmanagerdata proto3 structures.
mysqlproxyPackage mysqlproxy is a basic module that proxies a mysql server session to appropriate calls in a queryservice back end, with optional query normalization.
servenvPackage servenv contains functionality that is common for all Vitess server programs.
sqlannotationPackage sqlannotation provides functions for annotating DML statements with keyspace-id comments and parsing them.
srvtopoPackage srvtopo contains a set of helper methods and classes to use the topology service in a serving environment.
statusPackage status defines a few useful functions for our binaries, mainly to link the status page with a vtctld instance.
throttlerPackage throttler provides a client-side, local throttler which is used to throttle (and actively pace) writes during the resharding process.
throttler/grpcthrottlerclientPackage grpcthrottlerclient contains the gRPC version of the throttler client protocol.
throttler/grpcthrottlerserverPackage grpcthrottlerserver contains the gRPC implementation of the server side of the throttler service.
throttler/throttlerclientPackage throttlerclient defines the generic RPC client interface for the throttler service.
throttler/throttlerclienttestPackage throttlerclienttest contains the testsuite against which each RPC implementation of the throttlerclient interface must be tested.
topoPackage topo is the module responsible for interacting with the topology service.
topo/consultopoPackage consultopo implements topo.Server with consul as the backend.
topo/etcd2topoPackage etcd2topo implements topo.Server with etcd as the backend.
topo/eventsPackage events defines the structures used for events relating directly to individual topology elements, like keyspaces, shards, and tablets.
topo/helpersPackage helpers contains a few utility classes to handle topo.Server objects, and transitions from one topo implementation to another.
topo/memorytopoPackage memorytopo contains an implementation of the topo.Factory / topo.Conn interfaces based on an in-memory tree of data.
topo/testPackage test contains utilities to test topo.Conn implementations.
topotoolsPackage topotools contains high level functions based on vt/topo and vt/actionnode.
topotools/eventsPackage events defines the structures used for events dispatched from the wrangler package.
topo/topoprotoPackage topoproto contains utility functions to deal with the proto3 structures defined in proto/topodata.
topo/topotestsPackage topotests contains all the unit tests for the topo.Server code that is based on topo.Conn.
vitessdriverPackage vitessdriver contains the Vitess Go SQL driver.
vtaclcheckPackage vtaclcheck analyzes a set of sql statements and returns the corresponding vtgate and vttablet query plans that will be executed on the given statements
vtctlPackage vtctl contains the implementation of all the Vitess management commands.
vtctldPackage vtctld contains all the code to expose a vtctld server based on the provided topo.Server.
vtctl/fakevtctlclientPackage fakevtctlclient contains a fake for the vtctlclient interface.
vtctl/grpcvtctlclientPackage grpcvtctlclient contains the gRPC version of the vtctl client protocol
vtctl/grpcvtctlserverPackage grpcvtctlserver contains the gRPC implementation of the server side of the remote execution of vtctl commands.
vtctl/vtctlclientPackage vtctlclient contains the generic client side of the remote vtctl protocol.
vtctl/vtctlclienttestPackage vtctlclienttest contains the testsuite against which each RPC implementation of the vtctlclient interface must be tested.
vterrorsPackage vterrors provides helpers for propagating internal errors through the Vitess system (including across RPC boundaries) in a structured way.
vtgatePackage vtgate provides query routing rpc services for vttablets.
vtgate/bufferPackage buffer provides a buffer for MASTER traffic during failovers.
vtgate/fakerpcvtgateconnPackage fakerpcvtgateconn provides a fake implementation of vtgateconn.Impl that doesn't do any RPC, but uses a local map to return results.
vtgate/gatewayPackage gateway contains the routing layer of vtgate.
vtgate/gatewaytestPackage gatewaytest contains a test suite to run against a Gateway object.
vtgate/grpcvtgateconnPackage grpcvtgateconn provides gRPC connectivity for VTGate.
vtgate/grpcvtgateservicePackage grpcvtgateservice provides the gRPC glue for vtgate
vtgate/planbuilderPackage planbuilder allows you to build execution plans that describe how to fulfill a query that may span multiple keyspaces or shards.
vtgate/vtgateconntestPackage vtgateconntest provides the test methods to make sure a vtgateconn/vtgateservice pair over RPC works correctly.
vtgate/vtgateservicePackage vtgateservice provides to interface definition for the vtgate service
vtgate/vtgateservice/vtgateservice_testingPackage vtgateservice_testing is a generated GoMock package.
vtqueryserverPackage vtqueryserver is a standalone version of the tablet server that only implements the queryservice interface without any of the topology, replication management, or other features of the full vttablet.
vttablet/customrule/filecustomrulePackage filecustomrule implements static custom rule from a config file
vttablet/customrule/topocustomrulePackage topocustomrule implements a topo service backed listener for query rules.
vttablet/fileloggerPackage filelogger implements an optional plugin that logs all queries to syslog.
vttablet/heartbeatPackage heartbeat contains a writer and reader of heartbeats for a master-slave cluster.
vttablet/queryservicePackage queryservice contains the interface for the service definition of the Query Service.
vttablet/sandboxconnPackage sandboxconn provides a fake QueryService implementation for tests.
vttablet/tabletconntestPackage tabletconntest provides the test methods to make sure a tabletconn/queryservice pair over RPC works correctly.
vttablet/tabletmanagerPackage tabletmanager exports the ActionAgent object.
vttablet/tabletmanager/eventsPackage events contains event structs used by the tabletmanager package.
vttablet/tabletservermockPackage tabletservermock provides mock interfaces for tabletserver.
vttablet/tabletserver/schema/schematestPackage schematest provides support for testing packages that depend on schema
vttablet/tabletserver/splitqueryPackage splitquery contains the logic needed for implementing the tabletserver's SplitQuery RPC.
vttablet/tabletserver/splitquery/splitquery_testingPackage splitquery_testing is a generated GoMock package.
vttablet/tabletserver/txserializerPackage txserializer provides the vttablet hot row protection.
vttestPackage vttest contains helpers to set up Vitess for testing.
vttimePackage vttime contains the definitions and implementations for the Vitess time library.
workerPackage worker contains the framework, utility methods and core functions for long running actions.
worker/fakevtworkerclientPackage fakevtworkerclient contains a fake for the vtworkerclient interface.
worker/grpcvtworkerclientPackage grpcvtworkerclient contains the gRPC version of the vtworker client protocol.
worker/grpcvtworkerserverPackage grpcvtworkerserver contains the gRPC implementation of the server side of the remote execution of vtworker commands.
worker/vtworkerclientPackage vtworkerclient contains the generic client side of the remote vtworker protocol.
worker/vtworkerclienttestPackage vtworkerclienttest contains the testsuite against which each RPC implementation of the vtworkerclient interface must be tested.
workflow/topovalidatorPackage topovalidator contains a workflow that validates the topology data.
wranglerPackage wrangler contains the Wrangler object to manage complex topology actions.

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