Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Zookeeper, mail # dev - question about getChildren and queue recipe


Copy link to this message
-
Re: question about getChildren and queue recipe
Flavio Junqueira 2012-09-05, 11:24
Hi Alex, I believe we currently use a set to hold the children of a znode. Are you proposing to use a different data structure?

-Flavio

On Sep 5, 2012, at 1:34 AM, Alexander Shraer wrote:

> Thanks Flavio. But what about just storing the list of children on the
> server in the order of their creation ? Wouldn't this be consistent
> with the sequential id and also cheap ? or am I missing something
>
> Thanks,
> Alex
>
> On Tue, Sep 4, 2012 at 3:11 PM, Flavio Junqueira <[EMAIL PROTECTED]> wrote:
>>
>> On Sep 4, 2012, at 3:10 AM, Alexander Shraer wrote:
>>
>>> Hi,
>>>
>>> I have 2 questions:
>>> - why was it decided not to guarantee any order on the list returned from
>>> getChildren, given that many use-cases require looking on the child with
>>> the smallest id ?
>>> Why not just keep this list in a sorted form on the server ?
>>
>>
>> There is some discussion about this here:
>>
>> https://issues.apache.org/jira/browse/ZOOKEEPER-44
>>
>> -Flavio
>>