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From Gaurav Bajaj <gauravhba...@gmail.com>
Subject Re: Write behind and eventual consistency
Date Thu, 04 May 2017 05:11:39 GMT
Any updates on the two use cases mentioned above?
On Apr 27, 2017 10:53 AM, "Gaurav Bajaj" <gauravhbajaj@gmail.com> wrote:

> Hi Val,
>
> Our use case :
>
> 1. Read records from file
> 2. Do computations on each record
> 3. Put them in the cache and persistence using write behind.
> 4. When all the records from file are processed, updated in Cache and also
> persisted to DB, we want to
>  trigger some other process which will do next set of operations on these
> records from cache.
> 5. We want to trigger this next process and mark original file as
> processed, only when we are sure data is persisted, so that in case of Node
> failure we need not process that file again.
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> On Thu, Apr 27, 2017 at 10:26 AM, steve.hostettler <
> steve.hostettler@gmail.com> wrote:
>
>> Hi Val,
>>
>> the use case is the following
>>
>> 1) Load data into the database from an external system
>> 2) Once ready load it into the grid
>> 3) Process something that does massive write behinds
>> 4) Take a snapshot of the results (or) Do a backup of the tables   <<---
>> At
>> this point I need the eventual consistency to ...eventually be
>>
>> At step 4 I cannot afford to have some update still in progress. This is
>> even more important since because of write behind I cannot maintain
>> referential integrity (since the insert/update are done in a random order)
>>
>>
>>
>> --
>> View this message in context: http://apache-ignite-users.705
>> 18.x6.nabble.com/Write-behind-and-eventual-consistency-tp12242p12287.html
>> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
>>
>
>

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