In the case of read-through cache, both Replicated and Partitioned mode are identical?

["yonggu.lee" <yo...@navercorp.com>]

I have a read-through cache backed by a hbase table. I this case, is there no
difference between Replicated and Partitioned mode? 

When I tested, although I set up a Replicated mode, the cache only had
Primary, and not Backup part (in web console, monitoring tab)





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Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: In the case of read-through cache, both Replicated and Partitioned mode are identical?

[Andrey Mashenkov <an...@gmail.com>]

Hi,

CacheStore semantic suppose you will warm-up a cache via calling
cache.loadCache().
When you use read-through and forget load cache from back store then it is
ok if no backups are updated on read operation.

Backups and replicated cache in case of read-through just add some
tolerance to node-loss and allow you to not fallback to read-through after
cache was warned-up.

If you don't care about warm-up then most likely you are ok with
read-through happens even if some other node already cached a value.

AFAIK, read-through caches values localy on backup nodes to prevent further
read from remote primary, that are expected in case of replicated cache.



On Wed, Aug 22, 2018 at 2:20 PM Prasad Bhalerao <
prasadbhalerao1983@gmail.com> wrote:

> I am just wondering would you really  need backup partitions in case of
> replicated mode? The whole data is replicated, so I think each node itself
> is kind of backup for other.
>
>
> On Wed, Aug 22, 2018, 2:41 PM yonggu.lee <yo...@navercorp.com> wrote:
>
>> I have a read-through cache backed by a hbase table. I this case, is
>> there no
>> difference between Replicated and Partitioned mode?
>>
>> When I tested, although I set up a Replicated mode, the cache only had
>> Primary, and not Backup part (in web console, monitoring tab)
>>
>>
>>
>>
>>
>> --
>> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>>
>

-- 
Best regards,
Andrey V. Mashenkov

Re: In the case of read-through cache, both Replicated and Partitioned mode are identical?

[Prasad Bhalerao <pr...@gmail.com>]

I am just wondering would you really  need backup partitions in case of
replicated mode? The whole data is replicated, so I think each node itself
is kind of backup for other.


On Wed, Aug 22, 2018, 2:41 PM yonggu.lee <yo...@navercorp.com> wrote:

> I have a read-through cache backed by a hbase table. I this case, is there
> no
> difference between Replicated and Partitioned mode?
>
> When I tested, although I set up a Replicated mode, the cache only had
> Primary, and not Backup part (in web console, monitoring tab)
>
>
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>