Hi,
DataPageEvictionMode is deprecated now, right? What should I do to evict my
off heap entries? Also, can I limit off heap memory usage?
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Do I need to configure something else for off heap eviction?
I have on heap enabled and set eviction policy(LRU). Max size of 1MB also
provided. I have 1.5million data, so obviously it some entries loaded in the
start should be evicted. Still when I try to get those entries, I get
performance
Hi,
Thank you for your information.
It's very helpful.
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Hello,
It seems that the root cause of the issue is wrong values of 'KEY_TYPE' and
'VALUE_TYPE' parameters.
In your case, there is no need to specify 'KEY_TYPE' at all, and
'VALUE_TYPE' should Person.class.getName() I think.
Please try the following:
String createTableSQL = "CREATE TABLE
Can I add fields without restarting the cluster? My requirement is to do
rolling upgrade.
From: Вячеслав Коптилин [mailto:slava.kopti...@gmail.com]
Sent: 2018年6月18日 17:35
To: user@ignite.apache.org
Subject: Re: SQL cannot find data of new class definition
Hello,
> I use BinaryObject in the
Hello,
> I use BinaryObject in the first place because the document says
BinaryObject “enables you to add and remove fields from objects of the same
type”
Yes, you can dynamically add fields to BinaryObject using
BinaryObjecyBuilder, but fields that you want to query have to be specified
on node
No, you can't make Cassandra transactional by glueing it with Ignite. If
you'd like to have transactions, then a strongly consistent store has to be
used instead (like RDBMS or Ignite persistence).
May I ask why don't you want to go for Ignite persistence?
--
Denis
On Mon, Jun 18, 2018 at 2:09
Hi,
Check out this code samples that suggest best practices on sticking
together SQL + k/v if the structure is defined by CREATE TABLE.
https://github.com/dmagda/ignite_world_demo
--
Denis
On Mon, Jun 18, 2018 at 11:50 AM Cong Guo wrote:
> Hi,
>
>
>
> I need to use both SQL and non-SQL APIs
Hi,
I need to use both SQL and non-SQL APIs (key-value) on a single cache. I follow
the document in:
https://apacheignite-sql.readme.io/docs/create-table
I use "CREATE TABLE" to create the table and its underlying cache. I can use
both SQL "INSERT" and put to add data to the cache. However,
Thanks Dmitry
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> I guess durable memory is pure RAM based and native persistence is
combination of both RAM and disk.
Durable memory is a memory architecture that allows processing and storing
data both in memory and on disk. In other words, Ignite native persistence
is a feature(add-on) provided by Durable
Hi,
You configured external public EC interface address (34.241...), but it
should be internal: 172...
Thanks!
-Dmitry
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Possibly, it is already fixed.
Please, try to upgrade to the latest version.
On Fri, Jun 8, 2018 at 5:25 PM HEWA WIDANA GAMAGE, SUBASH <
subash.hewawidanagam...@fmr.com> wrote:
> Hi Andrey,
>
> Thank you very much for the prompt response.
>
>
>
> We have only one node in a JVM.
>
>
>
>
>
> This
Hi Dkarachentsev,
Thanks for your comments. I have closed the ticket but the ticket is still
accessible with the URL. It would be helpful if we could delete the JIRA so
that the ticket is not accessible over internet.
Kindly let us know the team to contact to deleting the ticket.
Thanks!!!
There is no default expiry policy, and no default eviction policy for the
on-heap caches (just in case: expiry and eviction are not the same thing, see
https://apacheignite.readme.io/docs/evictions and
https://apacheignite.readme.io/docs/expiry-policies).
I see that most of the threads in the
Thanks, every thing other than native vs durable is now clear for me.
I guess durable memory is pure RAM based and native persistence is
combination of both RAM and disk.
How to manipulate durable memory? Can I configure it?
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Hi,
> 1. I have set setOnheapCacheEnabled(true) for every cache.
> This means they will go into java heap right?
As of AI 2.x Java heap is no longer treated as a data storage
and might be used as an extra caching layer for entries you have in the
off-heap.
> 2. I don't clearly understand the
Hi,
Does anyone have experience using both Cache and SQL interfaces at the same
time? How do you solve the possible upgrade? Is my problem a bug for
BinaryObject? Should I debug the ignite source code?
From: Cong Guo
Sent: 2018年6月15日 10:12
To: 'user@ignite.apache.org'
Subject: RE: SQL cannot
Hello,
To unsubscribe from the user mailing list send a letter to
user-unsubscr...@ignite.apache.org with a word "Unsubscribe" without quotes
as a subject.
If you have a mailing client, follow an unsubscribe link here:
https://ignite.apache.org/community/resources.html#mail-lists
Thanks,
S.
Hi,
1. I have set setOnheapCacheEnabled(true) for every cache. This means they
will go into java heap right?
2. Is it possible for me to take control of this durable memory? What should
essentially be kept there? How to do that? I don't clearly understand the
difference between durable memory
Hi,
AFAIK, you cannot download plugin separately, it's commercial product. You
can use it for free from here [1] or purchase a payed version for internal
use.
[1] http://console.gridgain.com/
Thanks!
-Dmitry
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The plugin is shipped as a part of the GridGain Enterprise and Ultimate
editions (which is basically Apache Ignite + GridGain plugins).
The download links are here: https://www.gridgain.com/resources/download.
The description of the GridGain WebConsole is here:
Hello,
As of Apache Ignite 2.x, all data are stored into off-heap memory [1].
On-heap memory is used only for temporary operations, buffers etc.
> Also, I have my own cache store implementations. I hope this is only used
> for read through and
> write through from and to database and not for
Hello,
The docs says:
https://apacheignite-tools.readme.io/docs/ignite-web-console
The web console also features cluster monitoring functionality
(available separately as GridGain plugin) that shows various cache and
node metrics as well as CPU and heap usage.
I googled and failed to find
Hi,
Not sure if it's possible to remove the ticket. Just close it with won't fix
status, it would be enough.
Thanks!
-Dmitry
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Additionally if a lock is held by another thread lock.tryLock() appears to
block.
Demonstrated by the following code. See header comment for a full description.
The error at line 85 should not be printed.
Found on Ignite 2.5.0. Reproducible on Windows and RHL.
Note : The test is technically
Hello Team,
This is not regarding Ignite issue. Am in a situation to delete a ticket
created in https://issues.apache.org/jira/projects/IGNITE/issues. As I do
not have Admin rights am not able to delete the ticket.
Could you please let me know whom should I contact for deletion of Ignite
Tickets
Hi,
I have multiple on heap caches attached to a data region of maximum 1GB size
durable memory. I have 512MB heap memory specified also.
Is it possible for me to set the size of this cache to take maximum of 100MB
and store the remaining in durable memory? Otherwise, won't it be using the
--
Regards,
*Harsh Mishra** | Solution Architect*
Quovantis Technologies
Mobile: +91-9958311308
Skype ID: harshmishra1984
www.quovantis.com
cool. Does it maintain transactions ?
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Hi,
Probably the best choice would be Cassandra as Ignite has out of the box
integration with it [1].
[1]
https://apacheignite-mix.readme.io/v2.5/docs/ignite-with-apache-cassandra
Thanks!
-Dmitry
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which is best choice of distributed persistence for Ignite if we dont want to
use native persistence ?
Riak ? Cassandra ? Dynamo DB ?
Has anyone tried this ? what was the experience ?
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