subject:"BinaryObject"

Re: Question on BinaryObject

2023-01-17 Thread Pavel Tupitsyn

Hello, yes, your understanding is correct.

On Tue, Jan 17, 2023 at 6:46 PM Peter  wrote:

> Hello,
>
> Do I understand correctly, that each BinaryObject that is returned by
> IgniteCache.get() and  IgniteCache.getAll() method calls on a local node
> contains an internal on-heap byte array, and object unmarshalling occurs
> from that array, and not from off-heap memory?
>

Question on BinaryObject

2023-01-17 Thread Peter

 Hello,

Do I understand correctly, that each BinaryObject that is returned by
IgniteCache.get() and  IgniteCache.getAll() method calls on a local node
contains an internal on-heap byte array, and object unmarshalling occurs
from that array, and not from off-heap memory?

Re:Re: BinaryObject Data Can Not Mapping To SQL-Data

2022-04-20 Thread y

Hi Vladimir
Yes, my first name is Tianyue... In fact, I work for an ERP company. ERP you
know , "there are strict latency requirements for data processing and for the
data-loading phase" in your words. I has deployed Ignite in a small, simple
production environment. Now I need to deploy another one on a more complex
environment which has xx TB data. For some business reasons, the previous code
is no more appropriate. The current plan is ’Computetask + Binaryserializer‘,
but this is also some problems and I will describe it in the future. Besides, I
have tried to customize CacheStore, failed: (
To be honest, since I have only graduated from University for three years and
my technical level is so limited, exploring ignite often frustrates me. （Damn
it, why is it wrong again ! why?

Tianyue Hu，
2022/4/20

PS：Zhenya sounds really really like a Chinese name，maybe a Russian Chinese,
just kidding .

在 2022-04-20 12:50:42，vtcher...@gmail.com 写道：

Hi Tianyue,

IMHO fully compilable project is usefull for newbie, while short code snippets
are not. You can start a single server cluster and debug code in your IDE,
check some suggestions about how it works. Couple of years ago I found such a
compilable project describing microservices written by @DenisMagda, it helped a
lot. So I hope my post will be usefull.

Vladimir
PS
I know out there in China last name is written first, while here in Russia it
is written last, so the names are Vladimir or Zhenya. Hope I am correct and
your name is Tianyue

5:12, 20 апреля 2022 г., y :

Hi Stanilovsky,

I don't know how to describe my problem to you, but I'm sure there is not an
error and the data was successfully inserted but not mapped to SQL-data.
Vladimir give me a link
https://www.gridgain.com/resources/blog/how-fast-load-large-datasets-apache-ignite-using-key-value-api.
I decided to take a look at this link first.

Anyway, thanks for your advise and hope can help you in the future.

Tianyue Hu,
2022/4/20

在 2022-04-19 14:50:51，"Zhenya Stanilovsky" 写道：

hi !
BinaryObjectBuilder oldBuilder =
igniteClient.binary().builder(«com.inspur...PubPartitionKeys_1_7»);

do you call:

oldBuilder.build(); // after ?

If so — what this mean ? «data is not mapped to sql» is it error in log or
client side or smth ?

thanks !

Hi,

I have had the same experience without sql, using KV API only. My cluster
consists of several data nodes and self-written jar application that starts the
client node. When started, client node executes mapreduce tasks for data load
and processing.

The workaround is as follows:
1. create POJO on the client node;
2. convert it to the binary object;
3. on the data node, get binary object over the network and get its builder
(obj.toBuilder());
4. set some fields, build and put in the cache.

The builder on the step 3 seems to be the same as the one on the cluent node.

Hope that helps,
Vladimir

13:06, 18 апреля 2022 г., y :
Hi ,
When using binary to insert data, I need to get an exist
BinaryObject/BinaryObjectBuilder from the database, similar to the code below.
442062c6$3$1803c222cba$Coremail$hty1994712$163.com

If I create a BinaryObjectBuilder directly, inserting binary data does not map
to table data. The following code will not throw error, but the data is not
mapped to sql. If there is no data in my table at first, how can I insert data?
3ecbd8f9$4$1803c222cba$Coremail$hty1994712$163.com

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