Referência do cbt

Cbt é uma ferramenta para fazer interações básicas com o Cloud Bigtable.

Utilização:

cbt [options] command [arguments]

Os comandos são:

count                     Count rows in a table
createinstance            Create an instance with an initial cluster
createcluster             Create a cluster in the configured instance
createfamily              Create a column family
createtable               Create a table
updatecluster             Update a cluster in the configured instance
deleteinstance            Delete an instance
deletecluster             Delete a cluster from the configured instance
deletecolumn              Delete all cells in a column
deletefamily              Delete a column family
deleterow                 Delete a row
deletetable               Delete a table
doc                       Print godoc-suitable documentation for cbt
help                      Print help text
listinstances             List instances in a project
listclusters              List clusters in an instance
lookup                    Read from a single row
ls                        List tables and column families
mddoc                     Print documentation for cbt in Markdown format
read                      Read rows
set                       Set value of a cell
setgcpolicy               Set the GC policy for a column family
waitforreplication        Block until all the completed writes have been replicated to all the clusters
version                   Print the current cbt version
createappprofile          Creates app profile for an instance
getappprofile             Reads app profile for an instance
listappprofile            Lists app profile for an instance
updateappprofile          Updates app profile for an instance
deleteappprofile          Deletes app profile for an instance

Use "cbt help " para mais informações sobre um comando.

As opções são:

-project string
    project ID, if unset uses gcloud configured project
-instance string
    Cloud Bigtable instance
-creds string
    if set, use application credentials in this file

No momento, os recursos alfa não estão disponíveis para a maioria dos clientes do Cloud Bigtable. Os recursos podem ser alterados de maneiras incompatíveis com versões anteriores e não são recomendados para uso em produção. Eles não estão sujeitos a SLA ou política de suspensão de uso.

Por conveniência, os valores das sinalizações -project, -instance, -creds, -admin-endpoint e -data-endpoint são especificados em ~/.cbtrc neste formato:

project = my-project-123
instance = my-instance
creds = path-to-account-key.json
admin-endpoint = hostname:port
data-endpoint = hostname:port

Todos os valores são opcionais e serão substituídos por sinalizações.

Contar linhas em uma tabela

cbt count <table>

Criar uma instância com um cluster inicial

cbt createinstance <instance-id> <display-name> <cluster-id> <zone> <num-nodes> <storage type>
  instance-id                   Permanent, unique id for the instance
  display-name              Description of the instance
  cluster-id                        Permanent, unique id for the cluster in the instance
  zone                              The zone in which to create the cluster
  num-nodes                 The number of nodes to create
  storage-type                  SSD or HDD

Criar um cluster na instância configurada

cbt createcluster <cluster-id> <zone> <num-nodes> <storage type>
  cluster-id        Permanent, unique id for the cluster in the instance
  zone                The zone in which to create the cluster
  num-nodes   The number of nodes to create
  storage-type  SSD or HDD

Criar um grupo de colunas

cbt createfamily <table> <family>

Criar uma tabela

cbt createtable <table> [families=family[:(maxage=<d> | maxversions=<n>)],...] [splits=split,...]
  families: Column families and their associated GC policies. See "setgcpolicy".
                     Example: families=family1:maxage=1w,family2:maxversions=1
  splits:   Row key to be used to initially split the table

Atualizar um cluster na instância configurada

cbt updatecluster <cluster-id> [num-nodes=num-nodes]
  cluster-id        Permanent, unique id for the cluster in the instance
  num-nodes     The number of nodes to update to

Excluir uma instância

cbt deleteinstance <instance>

Excluir um cluster da instância configurada

cbt deletecluster <cluster>

Excluir todas as células em uma coluna

cbt deletecolumn <table> <row> <family> <column> [app-profile=<app profile id>]
  app-profile=<app profile id>      The app profile id to use for the request

Excluir um grupo de colunas

cbt deletefamily <table> <family>

Excluir uma linha

cbt deleterow <table> <row> [app-profile=<app profile id>]
  app-profile=<app profile id>      The app profile id to use for the request

Excluir uma tabela

cbt deletetable <table>
cbt doc
cbt help [command]

Listar instâncias em um projeto

cbt listinstances

Listar clusters em uma instância

cbt listclusters

Ler a partir de uma única linha

cbt lookup <table> <row> [columns=[family]:[qualifier],...] [cells-per-column=<n>] [app-profile=<app profile id>]
  columns=[family]:[qualifier],...  Read only these columns, comma-separated
  cells-per-column=<n>          Read only this many cells per column
  app-profile=<app profile id>      The app profile id to use for the request

Listar tabelas e grupos de colunas

cbt ls          List tables
cbt ls <table>      List column families in <table>
cbt mddoc

Ler linhas

cbt read <table> [start=<row>] [end=<row>] [prefix=<prefix>] [regex=<regex>] [columns=[family]:[qualifier],...] [count=<n>] [cells-per-column=<n>] [app-profile=<app profile id>]
  start=<row>               Start reading at this row
  end=<row>             Stop reading before this row
  prefix=<prefix>           Read rows with this prefix
  regex=<regex>             Read rows with keys matching this regex
  columns=[family]:[qualifier],...  Read only these columns, comma-separated
  count=<n>             Read only this many rows
  cells-per-column=<n>          Read only this many cells per column
  app-profile=<app profile id>      The app profile id to use for the request

Definir valor de uma célula

cbt set <table> <row> [app-profile=<app profile id>] family:column=val[@ts] ...
  app-profile=<app profile id>      The app profile id to use for the request
  family:column=val[@ts] may be repeated to set multiple cells.

  ts is an optional integer timestamp.
  If it cannot be parsed, the `@ts` part will be
  interpreted as part of the value.

Definir a política GC para um grupo de colunas

cbt setgcpolicy <table> <family> ( maxage=<d> | maxversions=<n> | never)

  maxage=<d>        Maximum timestamp age to preserve (e.g. "1h", "4d")
  maxversions=<n>   Maximum number of versions to preserve

Bloquear até que todas as gravações concluídas tenham sido replicadas para todos os clusters

cbt waitforreplication <table>

  table The name of the table to create
cbt version

Cria um perfil de aplicativo de uma instância

cbt createappprofile <instance-id> <profile-id> <description> <etag> <routing-policy>
[cluster-id=<cluster-id>] [allow-transactional-writes=<allow-transactional-writes>]
set multi_cluster_routing_use_any or single_cluster_routing as possible values for routing policy
provide cluster-id=clusterID and allow-transactional-writes=true or false in case of single_cluster_routing

Lê o perfil de aplicativo de uma instância

cbt getappprofile <instance-id> <profile-id>

Lista o perfil de aplicativo de uma instância

cbt listappprofile <instance-id>

Atualiza o perfil de aplicativo de uma instância

cbt updateappprofile  <instance-id> <profile-id> <description> <routing-policy>[cluster-id=<cluster-id>] [allow-transactional-writes=<allow-transactional-writes>]
set multi_cluster_routing_use_any or single_cluster_routing as possible values for routing policy
provide cluster-id=clusterID and allow-transactional-writes=true or false in case of single_cluster_routing

Exclui o perfil de aplicativo de uma instância

cbt deleteappprofile <instance-id> <profile-id>
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Documentação do Cloud Bigtable