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https://issues.apache.org/jira/browse/SAMZA-90?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13841876#comment-13841876
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Chris Riccomini commented on SAMZA-90:
--------------------------------------

{code}  
  override def toString() = "TaskInstance for topic %s and partition %s." 
format (task.getClass.getName , partition)
{code}

I think "topic" should be "class" here.

{code}
  def toDetailedString() = "TaskInstance is windowable task %s with last window 
time of %d and last commit at %d.\nThis task is Closeable %s with envelope size 
of %d" format (isWindowableTask, lastWindowMs, lastCommitMs, isClosableTask, 
collector.envelopes.size) 
{code}

I kind of prefer a more succinct style. Something like:

{noformat}
TaskInstance [windowable=%s, window_time=%s, commit_time=%s, closable=%s, 
collector_size=%s]
{noformat}

What do you guys think?

Also, prefer %s to %d, because Scala throws exceptions if a string is 
accidentally put into a %d.

> Provide meaningful toString for task instances
> ----------------------------------------------
>
>                 Key: SAMZA-90
>                 URL: https://issues.apache.org/jira/browse/SAMZA-90
>             Project: Samza
>          Issue Type: Improvement
>          Components: container
>    Affects Versions: 0.6.0
>            Reporter: Jakob Homan
>            Assignee: Rekha Joshi
>              Labels: newbie
>             Fix For: 0.7.0
>
>         Attachments: SAMZA-90.0.patch, SAMZA-90.1.patch
>
>
> Right now if one logs from within a StreamTask, the toString looks a little 
> something like this:
> {noformat}
> 2013-11-25 23:34:33 AssembleCallGraph [INFO] In window: 
> com.linkedin.samsa.jobs.AssembleCallGraph@5782b9b5{noformat}
> This is less than useful when a container is responsible for more than one 
> task instance.  
> When creating the task instance we should override toString with the topics 
> and partition it is reponsible for, to make it easier to grok during logging.



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