README
¶
This directory contains all the Go code for Vitess.
Most of the packages at the top level are general-purpose and are suitable for use outside Vitess. Packages that are specific to Vitess are in the vt subdirectory. Binaries are in the cmd subdirectory.
Please see GoDoc for a listing of the packages and their purposes.
vt/proto contains the compiled protos for go, one per each directory. When importing these protos (for instance XXX.proto), we rename them on import to XXXpb. For instance:
import (
topodatapb "github.com/youtube/vitess/go/vt/proto/topodata"
)
Directories
¶
| Path | Synopsis |
|---|---|
|
Package acl contains functions to enforce access control lists.
|
Package acl contains functions to enforce access control lists. |
|
Package cache implements a LRU cache.
|
Package cache implements a LRU cache. |
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Package cgzip wraps the C library for gzip.
|
Package cgzip wraps the C library for gzip. |
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cmd
|
|
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mysqlctl
mysqlctl initializes and controls mysqld with Vitess-specific configuration.
|
mysqlctl initializes and controls mysqld with Vitess-specific configuration. |
|
mysqlctld
mysqlctld is a daemon that starts or initializes mysqld and provides an RPC interface for vttablet to stop and start mysqld from a different container without having to restart the container running mysqlctld.
|
mysqlctld is a daemon that starts or initializes mysqld and provides an RPC interface for vttablet to stop and start mysqld from a different container without having to restart the container running mysqlctld. |
|
vtcombo
vtcombo: a single binary that contains: - a ZK topology server based on an in-memory map.
|
vtcombo: a single binary that contains: - a ZK topology server based on an in-memory map. |
|
vtgateclienttest
Package main is the implementation of vtgateclienttest.
|
Package main is the implementation of vtgateclienttest. |
|
vtgateclienttest/services
Package services exposes all the services for the vtgateclienttest binary.
|
Package services exposes all the services for the vtgateclienttest binary. |
|
vtworker
vtworker is the main program to run a worker job.
|
vtworker is the main program to run a worker job. |
|
zkctl
zkctl initializes and controls ZooKeeper with Vitess-specific configuration.
|
zkctl initializes and controls ZooKeeper with Vitess-specific configuration. |
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zkctld
zkctld is a daemon that starts or initializes ZooKeeper with Vitess-specific configuration.
|
zkctld is a daemon that starts or initializes ZooKeeper with Vitess-specific configuration. |
|
Package event provides a reflect-based framework for low-frequency global dispatching of events, which are values of any arbitrary type, to a set of listener functions, which are usually registered by plugin packages during init().
|
Package event provides a reflect-based framework for low-frequency global dispatching of events, which are values of any arbitrary type, to a set of listener functions, which are usually registered by plugin packages during init(). |
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syslogger
Package syslogger uses the event package to listen for any event that implements the Syslogger interface.
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Package syslogger uses the event package to listen for any event that implements the Syslogger interface. |
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Package ewma implements exponentially weighted moving averages(EWMA).
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Package ewma implements exponentially weighted moving averages(EWMA). |
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Package exit provides an alternative to os.Exit(int).
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Package exit provides an alternative to os.Exit(int). |
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Package fileutil contains utility functions related to files and paths.
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Package fileutil contains utility functions related to files and paths. |
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Package flagutil contains flags that parse string lists and string maps.
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Package flagutil contains flags that parse string lists and string maps. |
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Package hack gives you some efficient functionality at the cost of breaking some Go rules.
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Package hack gives you some efficient functionality at the cost of breaking some Go rules. |
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Package history implements a circular buffer with adjacent-item deduplication.
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Package history implements a circular buffer with adjacent-item deduplication. |
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Package ioutil2 provides extra functionality along similar lines to io/ioutil.
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Package ioutil2 provides extra functionality along similar lines to io/ioutil. |
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Package memcache is a client for memcached.
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Package memcache is a client for memcached. |
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Package mysql wraps the C client library for MySQL.
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Package mysql wraps the C client library for MySQL. |
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Package mysqlconn is a library to support MySQL binary protocol, both client and server sides.
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Package mysqlconn is a library to support MySQL binary protocol, both client and server sides. |
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fakesqldb
Package fakesqldb provides a MySQL server for tests.
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Package fakesqldb provides a MySQL server for tests. |
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replication
Package replication contains data structure definitions for MySQL replication related features.
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Package replication contains data structure definitions for MySQL replication related features. |
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Package netutil contains network-related utility functions.
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Package netutil contains network-related utility functions. |
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Package pools provides functionality to manage and reuse resources like connections.
|
Package pools provides functionality to manage and reuse resources like connections. |
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Package proc allows you to configure servers to be restarted with negligible downtime.
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Package proc allows you to configure servers to be restarted with negligible downtime. |
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Package ratelimiter implements rate limiting functionality.
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Package ratelimiter implements rate limiting functionality. |
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Package sqldb defines an interface for low level db connection.
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Package sqldb defines an interface for low level db connection. |
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Package sqltypes implements interfaces and types that represent SQL values.
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Package sqltypes implements interfaces and types that represent SQL values. |
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Package stats is a wrapper for expvar.
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Package stats is a wrapper for expvar. |
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influxdbbackend
Package influxdbbackend is useful for publishing metrics to an InfluxDB backend (tested on v0.88).
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Package influxdbbackend is useful for publishing metrics to an InfluxDB backend (tested on v0.88). |
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promstats
Package promstats contains adapters to publish stats variables to prometheus (http://prometheus.io)
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Package promstats contains adapters to publish stats variables to prometheus (http://prometheus.io) |
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Package streamlog provides a non-blocking message broadcaster.
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Package streamlog provides a non-blocking message broadcaster. |
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Package sync2 provides extra functionality along the same lines as sync.
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Package sync2 provides extra functionality along the same lines as sync. |
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Package tb exposes some handy traceback functionality buried in the runtime.
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Package tb exposes some handy traceback functionality buried in the runtime. |
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Package testfiles locates test files within the Vitess directory tree.
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Package testfiles locates test files within the Vitess directory tree. |
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Package timer provides various enhanced timer functions.
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Package timer provides various enhanced timer functions. |
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Package trace contains a helper interface that allows various tracing tools to be plugged in to components using this interface.
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Package trace contains a helper interface that allows various tracing tools to be plugged in to components using this interface. |
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vt
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|
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automation
Package automation contains code to execute high-level cluster operations (e.g.
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Package automation contains code to execute high-level cluster operations (e.g. |
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binlog/binlogplayer
Package binlogplayer contains the code that plays a filtered replication stream on a client database.
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Package binlogplayer contains the code that plays a filtered replication stream on a client database. |
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binlog/eventtoken
Package eventtoken includes utility methods for event token handling.
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Package eventtoken includes utility methods for event token handling. |
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binlog/grpcbinlogstreamer
Package grpcbinlogstreamer contains the gRPC implementation of the binlog streamer server component.
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Package grpcbinlogstreamer contains the gRPC implementation of the binlog streamer server component. |
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callerid
Package callerid stores/retrives CallerIDs (immediate CallerID and effective CallerID) to/from the Context
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Package callerid stores/retrives CallerIDs (immediate CallerID and effective CallerID) to/from the Context |
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callinfo
Package callinfo stores custom values into the Context (related to the RPC source)
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Package callinfo stores custom values into the Context (related to the RPC source) |
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dbconfigs
Package dbconfigs is reusable by vt tools to load the db configs file.
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Package dbconfigs is reusable by vt tools to load the db configs file. |
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dbconnpool
Package dbconnpool exposes a single DBConnection object with wrapped access to a single DB connection, and a ConnectionPool object to pool these DBConnections.
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Package dbconnpool exposes a single DBConnection object with wrapped access to a single DB connection, and a ConnectionPool object to pool these DBConnections. |
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discovery
Package discovery provides a way to discover all tablets e.g.
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Package discovery provides a way to discover all tablets e.g. |
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dtids
Package dtids contains dtid convenience functions.
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Package dtids contains dtid convenience functions. |
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estimator
Package estimator implements future value estimation by EWMA algorithm.
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Package estimator implements future value estimation by EWMA algorithm. |
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etcdtopo
Package etcdtopo implements topo.Server with etcd as the backend.
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Package etcdtopo implements topo.Server with etcd as the backend. |
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events
Package events defines common structures used for events dispatched from various other package.
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Package events defines common structures used for events dispatched from various other package. |
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logz
Package logz provides an infrastructure to expose a list of entries as a sortable table on a webpage.
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Package logz provides an infrastructure to expose a list of entries as a sortable table on a webpage. |
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mysqlctl/backupstorage
Package backupstorage contains the interface and file system implementation of the backup system.
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Package backupstorage contains the interface and file system implementation of the backup system. |
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mysqlctl/cephbackupstorage
Package cephbackupstorage implements the BackupStorage interface for Ceph Cloud Storage.
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Package cephbackupstorage implements the BackupStorage interface for Ceph Cloud Storage. |
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mysqlctl/filebackupstorage
Package filebackupstorage implements the BackupStorage interface for a local filesystem (which can be an NFS mount).
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Package filebackupstorage implements the BackupStorage interface for a local filesystem (which can be an NFS mount). |
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mysqlctl/gcsbackupstorage
Package gcsbackupstorage implements the BackupStorage interface for Google Cloud Storage.
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Package gcsbackupstorage implements the BackupStorage interface for Google Cloud Storage. |
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mysqlctl/grpcmysqlctlclient
Package grpcmysqlctlclient contains the gRPC1 version of the mysqlctl client protocol.
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Package grpcmysqlctlclient contains the gRPC1 version of the mysqlctl client protocol. |
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mysqlctl/grpcmysqlctlserver
Package grpcmysqlctlserver contains the gRPC implementation of the server side of the remote execution of mysqlctl commands.
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Package grpcmysqlctlserver contains the gRPC implementation of the server side of the remote execution of mysqlctl commands. |
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mysqlctl/mysqlctlclient
Package mysqlctlclient contains the generic client side of the remote mysqlctl protocol.
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Package mysqlctlclient contains the generic client side of the remote mysqlctl protocol. |
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mysqlctl/s3backupstorage
Package s3backupstorage implements the BackupStorage interface for AWS S3.
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Package s3backupstorage implements the BackupStorage interface for AWS S3. |
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mysqlctl/tmutils
Package tmutils contains helper methods to deal with the tabletmanagerdata proto3 structures.
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Package tmutils contains helper methods to deal with the tabletmanagerdata proto3 structures. |
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proto/automation
Package automation is a generated protocol buffer package.
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Package automation is a generated protocol buffer package. |
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proto/automationservice
Package automationservice is a generated protocol buffer package.
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Package automationservice is a generated protocol buffer package. |
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proto/binlogdata
Package binlogdata is a generated protocol buffer package.
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Package binlogdata is a generated protocol buffer package. |
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proto/binlogservice
Package binlogservice is a generated protocol buffer package.
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Package binlogservice is a generated protocol buffer package. |
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proto/logutil
Package logutil is a generated protocol buffer package.
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Package logutil is a generated protocol buffer package. |
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proto/mysqlctl
Package mysqlctl is a generated protocol buffer package.
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Package mysqlctl is a generated protocol buffer package. |
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proto/query
Package query is a generated protocol buffer package.
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Package query is a generated protocol buffer package. |
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proto/queryservice
Package queryservice is a generated protocol buffer package.
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Package queryservice is a generated protocol buffer package. |
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proto/replicationdata
Package replicationdata is a generated protocol buffer package.
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Package replicationdata is a generated protocol buffer package. |
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proto/tableacl
Package tableacl is a generated protocol buffer package.
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Package tableacl is a generated protocol buffer package. |
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proto/tabletmanagerdata
Package tabletmanagerdata is a generated protocol buffer package.
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Package tabletmanagerdata is a generated protocol buffer package. |
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proto/tabletmanagerservice
Package tabletmanagerservice is a generated protocol buffer package.
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Package tabletmanagerservice is a generated protocol buffer package. |
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proto/throttlerdata
Package throttlerdata is a generated protocol buffer package.
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Package throttlerdata is a generated protocol buffer package. |
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proto/throttlerservice
Package throttlerservice is a generated protocol buffer package.
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Package throttlerservice is a generated protocol buffer package. |
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proto/topodata
Package topodata is a generated protocol buffer package.
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Package topodata is a generated protocol buffer package. |
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proto/vschema
Package vschema is a generated protocol buffer package.
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Package vschema is a generated protocol buffer package. |
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proto/vtctldata
Package vtctldata is a generated protocol buffer package.
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Package vtctldata is a generated protocol buffer package. |
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proto/vtctlservice
Package vtctlservice is a generated protocol buffer package.
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Package vtctlservice is a generated protocol buffer package. |
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proto/vtgate
Package vtgate is a generated protocol buffer package.
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Package vtgate is a generated protocol buffer package. |
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proto/vtgateservice
Package vtgateservice is a generated protocol buffer package.
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Package vtgateservice is a generated protocol buffer package. |
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proto/vtrpc
Package vtrpc is a generated protocol buffer package.
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Package vtrpc is a generated protocol buffer package. |
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proto/vttest
Package vttest is a generated protocol buffer package.
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Package vttest is a generated protocol buffer package. |
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proto/vtworkerdata
Package vtworkerdata is a generated protocol buffer package.
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Package vtworkerdata is a generated protocol buffer package. |
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proto/vtworkerservice
Package vtworkerservice is a generated protocol buffer package.
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Package vtworkerservice is a generated protocol buffer package. |
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proto/workflow
Package workflow is a generated protocol buffer package.
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Package workflow is a generated protocol buffer package. |
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servenv
Package servenv contains functionality that is common for all Vitess server programs.
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Package servenv contains functionality that is common for all Vitess server programs. |
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sqlannotation
Package sqlannotation provides functions for annotating DML statements with keyspace-id comments and parsing them.
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Package sqlannotation provides functions for annotating DML statements with keyspace-id comments and parsing them. |
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status
Package status defines a few useful functions for our binaries, mainly to link the status page with a vtctld instance.
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Package status defines a few useful functions for our binaries, mainly to link the status page with a vtctld instance. |
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throttler
Package throttler provides a client-side, local throttler which is used to throttle (and actively pace) writes during the resharding process.
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Package throttler provides a client-side, local throttler which is used to throttle (and actively pace) writes during the resharding process. |
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throttler/grpcthrottlerclient
Package grpcthrottlerclient contains the gRPC version of the throttler client protocol.
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Package grpcthrottlerclient contains the gRPC version of the throttler client protocol. |
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throttler/grpcthrottlerserver
Package grpcthrottlerserver contains the gRPC implementation of the server side of the throttler service.
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Package grpcthrottlerserver contains the gRPC implementation of the server side of the throttler service. |
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throttler/throttlerclient
Package throttlerclient defines the generic RPC client interface for the throttler service.
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Package throttlerclient defines the generic RPC client interface for the throttler service. |
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throttler/throttlerclienttest
Package throttlerclienttest contains the testsuite against which each RPC implementation of the throttlerclient interface must be tested.
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Package throttlerclienttest contains the testsuite against which each RPC implementation of the throttlerclient interface must be tested. |
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tlstest
Package tlstest contains utility methods to create test certificates.
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Package tlstest contains utility methods to create test certificates. |
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topo/consultopo
Package consultopo implements topo.Server with consul as the backend.
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Package consultopo implements topo.Server with consul as the backend. |
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topo/etcd2topo
Package etcd2topo implements topo.Server with etcd as the backend.
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Package etcd2topo implements topo.Server with etcd as the backend. |
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topo/events
Package events defines the structures used for events relating directly to individual topology elements, like keyspaces, shards, and tablets.
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Package events defines the structures used for events relating directly to individual topology elements, like keyspaces, shards, and tablets. |
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topo/helpers
Package helpers contains a few utility classes to handle topo.Server objects, and transitions from one topo implementation to another.
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Package helpers contains a few utility classes to handle topo.Server objects, and transitions from one topo implementation to another. |
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topo/memorytopo
Package memorytopo contains an implementation of the topo.Backend API based on an in-process memory map.
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Package memorytopo contains an implementation of the topo.Backend API based on an in-process memory map. |
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topo/test
Package test contains utilities to test topo.Impl implementations.
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Package test contains utilities to test topo.Impl implementations. |
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topo/test/faketopo
Package faketopo contains utitlities for tests that have to interact with a Vitess topology.
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Package faketopo contains utitlities for tests that have to interact with a Vitess topology. |
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topo/topoproto
Package topoproto contains utility functions to deal with the proto3 structures defined in proto/topodata.
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Package topoproto contains utility functions to deal with the proto3 structures defined in proto/topodata. |
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topo/topotests
Package topotests contains all the unit tests for the topo.Server code that is based on topo.Backend.
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Package topotests contains all the unit tests for the topo.Server code that is based on topo.Backend. |
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topotools
Package topotools contains high level functions based on vt/topo and vt/actionnode.
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Package topotools contains high level functions based on vt/topo and vt/actionnode. |
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topotools/events
Package events defines the structures used for events dispatched from the wrangler package.
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Package events defines the structures used for events dispatched from the wrangler package. |
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vitessdriver
Package vitessdriver contains the Vitess Go SQL driver.
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Package vitessdriver contains the Vitess Go SQL driver. |
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vtctl/fakevtctlclient
Package fakevtctlclient contains a fake for the vtctlclient interface.
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Package fakevtctlclient contains a fake for the vtctlclient interface. |
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vtctl/grpcvtctlclient
Package grpcvtctlclient contains the gRPC version of the vtctl client protocol
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Package grpcvtctlclient contains the gRPC version of the vtctl client protocol |
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vtctl/grpcvtctlserver
Package grpcvtctlserver contains the gRPC implementation of the server side of the remote execution of vtctl commands.
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Package grpcvtctlserver contains the gRPC implementation of the server side of the remote execution of vtctl commands. |
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vtctl/vtctlclient
Package vtctlclient contains the generic client side of the remote vtctl protocol.
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Package vtctlclient contains the generic client side of the remote vtctl protocol. |
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vtctl/vtctlclienttest
Package vtctlclienttest contains the testsuite against which each RPC implementation of the vtctlclient interface must be tested.
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Package vtctlclienttest contains the testsuite against which each RPC implementation of the vtctlclient interface must be tested. |
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vtctld
Package vtctld contains all the code to expose a vtctld server based on the provided topo.Server.
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Package vtctld contains all the code to expose a vtctld server based on the provided topo.Server. |
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vterrors
Package vterrors provides helpers for propagating internal errors through the Vitess system (including across RPC boundaries) in a structured way.
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Package vterrors provides helpers for propagating internal errors through the Vitess system (including across RPC boundaries) in a structured way. |
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vtgate
Package vtgate provides query routing rpc services for vttablets.
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Package vtgate provides query routing rpc services for vttablets. |
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vtgate/buffer
Package buffer provides a buffer for MASTER traffic during failovers.
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Package buffer provides a buffer for MASTER traffic during failovers. |
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vtgate/fakerpcvtgateconn
Package fakerpcvtgateconn provides a fake implementation of vtgateconn.Impl that doesn't do any RPC, but uses a local map to return results.
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Package fakerpcvtgateconn provides a fake implementation of vtgateconn.Impl that doesn't do any RPC, but uses a local map to return results. |
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vtgate/gateway
Package gateway contains the routing layer of vtgate.
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Package gateway contains the routing layer of vtgate. |
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vtgate/gatewaytest
Package gatewaytest contains a test suite to run against a Gateway object.
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Package gatewaytest contains a test suite to run against a Gateway object. |
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vtgate/grpcvtgateconn
Package grpcvtgateconn provides gRPC connectivity for VTGate.
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Package grpcvtgateconn provides gRPC connectivity for VTGate. |
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vtgate/grpcvtgateservice
Package grpcvtgateservice provides the gRPC glue for vtgate
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Package grpcvtgateservice provides the gRPC glue for vtgate |
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vtgate/l2vtgate
Package l2vtgate provides the core functionnality of a second-layer vtgate to route queries from an original vtgate to a subset of tablets.
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Package l2vtgate provides the core functionnality of a second-layer vtgate to route queries from an original vtgate to a subset of tablets. |
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vtgate/masterbuffer
Package masterbuffer contains experimental logic to buffer master requests in VTGate.
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Package masterbuffer contains experimental logic to buffer master requests in VTGate. |
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vtgate/planbuilder
Package planbuilder allows you to build execution plans that describe how to fulfill a query that may span multiple keyspaces or shards.
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Package planbuilder allows you to build execution plans that describe how to fulfill a query that may span multiple keyspaces or shards. |
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vtgate/vtgateconntest
Package vtgateconntest provides the test methods to make sure a vtgateconn/vtgateservice pair over RPC works correctly.
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Package vtgateconntest provides the test methods to make sure a vtgateconn/vtgateservice pair over RPC works correctly. |
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vtgate/vtgateservice
Package vtgateservice provides to interface definition for the vtgate service
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Package vtgateservice provides to interface definition for the vtgate service |
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vttablet/customrule/filecustomrule
Package filecustomrule implements static custom rule from a config file
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Package filecustomrule implements static custom rule from a config file |
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vttablet/endtoend
Package endtoend is a test-only package.
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Package endtoend is a test-only package. |
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vttablet/queryservice
Package queryservice contains the interface for the service definition of the Query Service.
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Package queryservice contains the interface for the service definition of the Query Service. |
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vttablet/sandboxconn
Package sandboxconn provides a fake QueryService implementation for tests.
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Package sandboxconn provides a fake QueryService implementation for tests. |
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vttablet/sysloglogger
Package sysloglogger implements an optional plugin that logs all queries to syslog.
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Package sysloglogger implements an optional plugin that logs all queries to syslog. |
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vttablet/tabletconntest
Package tabletconntest provides the test methods to make sure a tabletconn/queryservice pair over RPC works correctly.
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Package tabletconntest provides the test methods to make sure a tabletconn/queryservice pair over RPC works correctly. |
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vttablet/tabletmanager
Package tabletmanager exports the ActionAgent object.
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Package tabletmanager exports the ActionAgent object. |
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vttablet/tabletmanager/events
Package events contains event structs used by the tabletmanager package.
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Package events contains event structs used by the tabletmanager package. |
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vttablet/tabletserver/querytypes
Package querytypes defines internal types used in the APIs to deal with queries.
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Package querytypes defines internal types used in the APIs to deal with queries. |
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vttablet/tabletserver/schema/schematest
Package schematest provides support for testing packages that depend on schema
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Package schematest provides support for testing packages that depend on schema |
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vttablet/tabletserver/splitquery
Package splitquery contains the logic needed for implementing the tabletserver's SplitQuery RPC.
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Package splitquery contains the logic needed for implementing the tabletserver's SplitQuery RPC. |
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vttablet/tabletserver/tabletenv
Package tabletenv maintains environment variables and types that are common for all packages of tabletserver.
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Package tabletenv maintains environment variables and types that are common for all packages of tabletserver. |
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vttablet/tabletserver/txserializer
Package txserializer provides the vttablet hot row protection.
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Package txserializer provides the vttablet hot row protection. |
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vttablet/tabletservermock
Package tabletservermock provides mock interfaces for tabletserver.
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Package tabletservermock provides mock interfaces for tabletserver. |
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vttest
Package vttest provides the functionality to bring up a test cluster.
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Package vttest provides the functionality to bring up a test cluster. |
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vttime
Package vttime contains the definitions and implementations for the Vitess time library.
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Package vttime contains the definitions and implementations for the Vitess time library. |
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worker
Package worker contains the framework, utility methods and core functions for long running actions.
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Package worker contains the framework, utility methods and core functions for long running actions. |
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worker/fakevtworkerclient
Package fakevtworkerclient contains a fake for the vtworkerclient interface.
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Package fakevtworkerclient contains a fake for the vtworkerclient interface. |
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worker/grpcvtworkerclient
Package grpcvtworkerclient contains the gRPC version of the vtworker client protocol.
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Package grpcvtworkerclient contains the gRPC version of the vtworker client protocol. |
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worker/grpcvtworkerserver
Package grpcvtworkerserver contains the gRPC implementation of the server side of the remote execution of vtworker commands.
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Package grpcvtworkerserver contains the gRPC implementation of the server side of the remote execution of vtworker commands. |
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worker/vtworkerclient
Package vtworkerclient contains the generic client side of the remote vtworker protocol.
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Package vtworkerclient contains the generic client side of the remote vtworker protocol. |
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worker/vtworkerclienttest
Package vtworkerclienttest contains the testsuite against which each RPC implementation of the vtworkerclient interface must be tested.
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Package vtworkerclienttest contains the testsuite against which each RPC implementation of the vtworkerclient interface must be tested. |
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workflow/topovalidator
Package topovalidator contains a workflow that validates the topology data.
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Package topovalidator contains a workflow that validates the topology data. |
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wrangler
Package wrangler contains the Wrangler object to manage complex topology actions.
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Package wrangler contains the Wrangler object to manage complex topology actions. |
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wrangler/testlib
Package testlib contains utility methods to include in unit tests to deal with topology common tasks, like fake tablets and action loops.
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Package testlib contains utility methods to include in unit tests to deal with topology common tasks, like fake tablets and action loops. |
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