still got Redis::Future result after exit pipeline block, why?(using redis-ruby)

[Sandy]

Is the pipeline async, namely will redis-rb execute following codes without finishing pipeline first?

[Pieter Noordhuis]

You didn't include a code snippet.

Redis::Future objects will get their value after the pipeline block completes.

For instance:
```
redis.pipelined do
@value = redis.get "key"
# The pipeline has not yet been executed, so futures are not yet
populated with their values
end

# The pipeline has now been executed, and futures have their values
@value.get # => "some value"
```

Cheers,
Pieter

On Thu, Jul 12, 2012 at 8:16 PM, Sandy <sandy....@gmail.com> wrote:
> Is the pipeline async, namely will redis-rb execute following codes without
> finishing pipeline first?
>

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[Sandy]

Here is a code screenshot. The basic idea is to compute pagerank for each page. The original page rank and page outlinks are stored in redis. 

I try to get all rank and links for each page using a pipeline, but got Redis::Future(No method error)when accessing links.length

在 2012年7月13日星期五UTC+8上午11时26分41秒，Pieter Noordhuis写道：

You didn't include a code snippet.

Redis::Future objects will get their value after the pipeline block completes.

For instance:
```
redis.pipelined do
  @value = redis.get "key"
  # The pipeline has not yet been executed, so futures are not yet
populated with their values
end

# The pipeline has now been executed, and futures have their values
@value.get # => "some value"
```

Cheers,
Pieter

On Thu, Jul 12, 2012 at 8:16 PM, Sandy <sandy....@gmail.com> wrote:
> Is the pipeline async, namely will redis-rb execute following codes without
> finishing pipeline first?
>
> --
> You received this message because you are subscribed to the Google Groups
> "Redis DB" group.
> To view this discussion on the web visit
> https://groups.google.com/d/msg/redis-db/-/g2s0XpgroYgJ.
> To post to this group, send email to redi...@googlegroups.com.
> To unsubscribe from this group, send email to

> redis-db+unsubscribe@googlegroups.com.

[Pieter Noordhuis]

You have to call #get on the future to get its value. It doesn't transparently proxy it.

In the future please use something like http://gist.github.com/ for code samples.

Cheers,

Pieter

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[Sandy]

Thanks for your advice.

As for the problem, I tried "links = linkshsh[page].get" but got:

  undefined method `get' for <Redis::Future [:hget, "15502875","currank"]>:Redis::Future

Did I got something wrong?

在 2012年7月13日星期五UTC+8下午11时55分20秒，Pieter Noordhuis写道：

[Pieter Noordhuis]

Sorry, it's #value.

https://github.com/redis/redis-rb/blob/171c6e180974cb7c8879df9b5923a66776fa6a71/lib/redis/pipeline.rb#L98

Cheers,

Pieter

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[Sandy]

Thanks so much for your help.

在 2012年7月14日星期六UTC+8上午12时53分08秒，Pieter Noordhuis写道：

[Bhanu Gandikota]

Can someone please let me know if we have debian package available for Redis 2.6.0-rc1?

Thanks in advance!

Bhanu G

--
Bhanu M. Gandikota 

Rubicon DBA Team 

Cell: (415) 420-7740