helpers

package
v0.0.0-...-d271c08 Latest Latest
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 Go to latest Published: Oct 21, 2014 License: BSD-3-Clause Imports: 6 Imported by: 0

Documentation

Overview

helpers package contains a few utility classes to handle topo.Server objects, and transitions from one topo implementation to another.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CopyKeyspaces 

func CopyKeyspaces(fromTS, toTS topo.Server)

CopyKeyspaces will create the keyspaces in the destination topo

func CopyShardReplications 

func CopyShardReplications(fromTS, toTS topo.Server)

CopyShardReplications will create the ShardReplication objects in the destination topo

func CopyShards 

func CopyShards(fromTS, toTS topo.Server, deleteKeyspaceShards bool)

CopyShards will create the shards in the destination topo

func CopyTablets 

func CopyTablets(fromTS, toTS topo.Server)

CopyTablets will create the tablets in the destination topo

Types

type Tee 

type Tee struct {
	// contains filtered or unexported fields
}

Tee is an implementation of topo.Server that uses a primary underlying topo.Server for all changes, but also duplicates the changes to a secondary topo.Server. It also locks both topo servers when needed. It is meant to be used during transitions from one topo.Server to another.

- primary: we read everything from it, and write to it - secondary: we write to it as well, but we usually don't fail. - we lock primary/secondary if reverseLockOrder is False, or secondary/primary if reverseLockOrder is True.

func NewTee 

func NewTee(primary, secondary topo.Server, reverseLockOrder bool) *Tee

func (*Tee) Close 

func (tee *Tee) Close()

func (*Tee) CreateKeyspace 

func (tee *Tee) CreateKeyspace(keyspace string, value *topo.Keyspace) error

func (*Tee) CreateShard 

func (tee *Tee) CreateShard(keyspace, shard string, value *topo.Shard) error

func (*Tee) CreateTablet 

func (tee *Tee) CreateTablet(tablet *topo.Tablet) error

func (*Tee) CreateTabletPidNode 

func (tee *Tee) CreateTabletPidNode(tabletAlias topo.TabletAlias, contents string, done chan struct{}) error

func (*Tee) DeleteEndPoints 

func (tee *Tee) DeleteEndPoints(cell, keyspace, shard string, tabletType topo.TabletType) error

func (*Tee) DeleteKeyspaceShards 

func (tee *Tee) DeleteKeyspaceShards(keyspace string) error

func (*Tee) DeleteShard 

func (tee *Tee) DeleteShard(keyspace, shard string) error

func (*Tee) DeleteShardReplication 

func (tee *Tee) DeleteShardReplication(cell, keyspace, shard string) error

func (*Tee) DeleteSrvShard 

func (tee *Tee) DeleteSrvShard(cell, keyspace, shard string) error

func (*Tee) DeleteTablet 

func (tee *Tee) DeleteTablet(alias topo.TabletAlias) error

func (*Tee) GetEndPoints 

func (tee *Tee) GetEndPoints(cell, keyspace, shard string, tabletType topo.TabletType) (*topo.EndPoints, error)

func (*Tee) GetKeyspace 

func (tee *Tee) GetKeyspace(keyspace string) (*topo.KeyspaceInfo, error)

func (*Tee) GetKeyspaces 

func (tee *Tee) GetKeyspaces() ([]string, error)

func (*Tee) GetKnownCells 

func (tee *Tee) GetKnownCells() ([]string, error)

func (*Tee) GetShard 

func (tee *Tee) GetShard(keyspace, shard string) (*topo.ShardInfo, error)

func (*Tee) GetShardNames 

func (tee *Tee) GetShardNames(keyspace string) ([]string, error)

func (*Tee) GetShardReplication 

func (tee *Tee) GetShardReplication(cell, keyspace, shard string) (*topo.ShardReplicationInfo, error)

func (*Tee) GetSrvKeyspace 

func (tee *Tee) GetSrvKeyspace(cell, keyspace string) (*topo.SrvKeyspace, error)

func (*Tee) GetSrvKeyspaceNames 

func (tee *Tee) GetSrvKeyspaceNames(cell string) ([]string, error)

func (*Tee) GetSrvShard 

func (tee *Tee) GetSrvShard(cell, keyspace, shard string) (*topo.SrvShard, error)

func (*Tee) GetSrvTabletTypesPerShard 

func (tee *Tee) GetSrvTabletTypesPerShard(cell, keyspace, shard string) ([]topo.TabletType, error)

func (*Tee) GetSubprocessFlags 

func (tee *Tee) GetSubprocessFlags() []string

func (*Tee) GetTablet 

func (tee *Tee) GetTablet(alias topo.TabletAlias) (*topo.TabletInfo, error)

func (*Tee) GetTabletsByCell 

func (tee *Tee) GetTabletsByCell(cell string) ([]topo.TabletAlias, error)

func (*Tee) LockKeyspaceForAction 

func (tee *Tee) LockKeyspaceForAction(keyspace, contents string, timeout time.Duration, interrupted chan struct{}) (string, error)

func (*Tee) LockShardForAction 

func (tee *Tee) LockShardForAction(keyspace, shard, contents string, timeout time.Duration, interrupted chan struct{}) (string, error)

func (*Tee) LockSrvShardForAction 

func (tee *Tee) LockSrvShardForAction(cell, keyspace, shard, contents string, timeout time.Duration, interrupted chan struct{}) (string, error)

func (*Tee) UnlockKeyspaceForAction 

func (tee *Tee) UnlockKeyspaceForAction(keyspace, lockPath, results string) error

func (*Tee) UnlockShardForAction 

func (tee *Tee) UnlockShardForAction(keyspace, shard, lockPath, results string) error

func (*Tee) UnlockSrvShardForAction 

func (tee *Tee) UnlockSrvShardForAction(cell, keyspace, shard, lockPath, results string) error

func (*Tee) UpdateEndPoints 

func (tee *Tee) UpdateEndPoints(cell, keyspace, shard string, tabletType topo.TabletType, addrs *topo.EndPoints) error

func (*Tee) UpdateKeyspace 

func (tee *Tee) UpdateKeyspace(ki *topo.KeyspaceInfo, existingVersion int64) (newVersion int64, err error)

func (*Tee) UpdateShard 

func (tee *Tee) UpdateShard(si *topo.ShardInfo, existingVersion int64) (newVersion int64, err error)

func (*Tee) UpdateShardReplicationFields 

func (tee *Tee) UpdateShardReplicationFields(cell, keyspace, shard string, update func(*topo.ShardReplication) error) error

func (*Tee) UpdateSrvKeyspace 

func (tee *Tee) UpdateSrvKeyspace(cell, keyspace string, srvKeyspace *topo.SrvKeyspace) error

func (*Tee) UpdateSrvShard 

func (tee *Tee) UpdateSrvShard(cell, keyspace, shard string, srvShard *topo.SrvShard) error

func (*Tee) UpdateTablet 

func (tee *Tee) UpdateTablet(tablet *topo.TabletInfo, existingVersion int64) (newVersion int64, err error)

func (*Tee) UpdateTabletEndpoint 

func (tee *Tee) UpdateTabletEndpoint(cell, keyspace, shard string, tabletType topo.TabletType, addr *topo.EndPoint) error

func (*Tee) UpdateTabletFields 

func (tee *Tee) UpdateTabletFields(tabletAlias topo.TabletAlias, update func(*topo.Tablet) error) error

func (*Tee) ValidateShard 

func (tee *Tee) ValidateShard(keyspace, shard string) error

func (*Tee) ValidateTablet 

func (tee *Tee) ValidateTablet(alias topo.TabletAlias) error

func (*Tee) ValidateTabletPidNode 

func (tee *Tee) ValidateTabletPidNode(tabletAlias topo.TabletAlias) error

Source Files

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