Firstly, please run the java snippet, then run the python snippet
I got this output:
/home/ivandasch/.virtualenvs/pyignite-py38/bin/python
/home/ivandasch/.config/JetBrains/PyCharm2022.2/scratches/scratch.py
ValueType(name='test', version=1)
чт, 22 дек. 2022 г. в 10:40, Ivan Daschinsky <ivanda...@gmail.com>:
> Just tried on (ignite 2.13.0 server, ignite-client on master, pyignite on
> 0.6.0)
>
> Java code:
>
> import org.apache.ignite.Ignition;
> import org.apache.ignite.binary.BinaryObject;
> import org.apache.ignite.client.ClientCache;
> import org.apache.ignite.client.IgniteClient;
> import org.apache.ignite.configuration.ClientConfiguration;
>
> class Scratch {
> public static void main(String[] args) {
> try (IgniteClient client = Ignition.startClient(new
> ClientConfiguration()
> .setAddresses("127.0.0.1:10800", "127.0.0.1:10801", "
> 127.0.0.1:10802"))) {
>
> ClientCache<Object, Object> cache =
> client.getOrCreateCache("test").withKeepBinary();
>
> BinaryObject key =
> client.binary().builder("KeyType").setField("id", 10,
> Integer.class).build();
> BinaryObject val =
> client.binary().builder("ValueType").setField("name", "test",
> String.class).build();
>
> cache.put(key, val);
> }
> }
> }
>
> Python code:
>
> from pyignite import Client
> from pyignite import GenericObjectMeta
> from pyignite.datatypes import IntObject, String
>
> class Key(
> metaclass=GenericObjectMeta,
> type_name="KeyType",
> schema={
> 'id': IntObject,
> },
> version=1,
> ):
> pass
>
> class Value(
> metaclass=GenericObjectMeta,
> type_name="ValueType",
> schema={
> 'name': String,
> },
> version=1,
> ):
> pass
>
> client = Client()
> client.connect([('127.0.0.1', 10800 + i) for i in range(0, 3)])
> cache = client.get_or_create_cache("test")
>
> print(cache.get(Key(id=10)))
>
> Everything works as expected.
>
> I guess that you used the version of ignite-core (thin-client) older than
> 2.14.0.
> In that version, compactFooter equals to false, but on server side and
> pyignite it is by default enabled.
>
> But pyignite has an ability to detect this param after fetching the data.
> That is the reason why you code started working after fetching few data by
> a scan query.
>
> чт, 22 дек. 2022 г. в 09:13, Ivan Daschinsky <ivanda...@gmail.com>:
>
>> Couls you please specify the exact versions of pyignite and ignite-core
>> (java thin client)?
>>
>> ср, 21 дек. 2022 г., 18:36 Айсина Роза Мунеровна <
>> roza.ays...@sbermarket.ru>:
>>
>>> Hola again!
>>>
>>> I accidently discovered some strange behaviour when trying to get value
>>> by key in Python.
>>>
>>> I do this in part 3:
>>>
>>> cache = ignite_client.get_cache("PUBLIC_ProductFeatures")
>>> key = IoSbmtProductFeaturesKey(product_sku=15052004)
>>> cursor = cache.scan(partitions=1)
>>>
>>> # Uncomment to see error
>>> # value = cache.get(key)
>>>
>>> true_key, true_value = next(cursor) # THIS LINE IS CRUCIAL!!!11
>>> print("true_key: ", true_key)
>>> print("true_value:", true_value)
>>>
>>> value = cache.get(key)
>>>
>>>
>>> So if data from cursor is read first then everything works as expected.
>>> If there is no cursor or reading data from it happens AFTER
>>> cache.get(key) - everything fails and key is not found.
>>>
>>> Is it ok?
>>> Maybe there is some dynamic binding of classes?
>>> Looks really weird.
>>>
>>> Help please!
>>>
>>> On 20 Dec 2022, at 1:35 PM, Айсина Роза Мунеровна <
>>> roza.ays...@sbermarket.ru> wrote:
>>>
>>> Hola!
>>> I can’t get data by key in Python in caches created in Java with binary
>>> objects.
>>>
>>> 1. Cache was created though DDL in SQL API:
>>>
>>> CREATE TABLE IF NOT EXISTS PUBLIC.ProductFeatures
>>> (
>>> product_sku INT PRIMARY KEY,
>>> total_cnt_orders_with_sku INT
>>> )
>>> WITH "CACHE_NAME=PUBLIC_ProductFeatures,
>>> KEY_TYPE=io.sbmt.ProductFeaturesKey,
>>> VALUE_TYPE=io.sbmt.ProductFeaturesValue,
>>> AFFINITY_KEY=product_sku,
>>> TEMPLATE=PARTITIONED,
>>> BACKUPS=1”
>>>
>>> 2. Java apps uploads data to this cache through Key-Value API with
>>> binary object underneath:
>>>
>>> ClientCache<BinaryObject, BinaryObject> igniteCache = igniteClient
>>> .cache(config.getCacheName())
>>> .withKeepBinary();
>>>
>>> final BinaryObjectBuilder keyBuilder =
>>> igniteClient.binary().builder(config.getKeyType());
>>> final BinaryObjectBuilder valueBuilder =
>>> igniteClient.binary().builder(config.getValueType());
>>>
>>> keyBuilder.setField(column.name, id);
>>> valueBuilder.setField(column.name, id);
>>>
>>> final BinaryObject key = keyBuilder.build();
>>> final BinaryObject value = valueBuilder.build();
>>>
>>> igniteCache.put(key, value);
>>>
>>>
>>> 3. In Python client I create Complex Object class and try to get data
>>> from this cache:
>>>
>>> class IoSbmtProductFeaturesKey(
>>> metaclass=GenericObjectMeta,
>>> schema={
>>> 'product_sku': IntObject
>>> },
>>> type_name='io.sbmt.ProductFeaturesKey'
>>> ):
>>> pass
>>>
>>>
>>> ignite_client.register_binary_type(IoSbmtProductFeaturesKey)
>>>
>>> key = IoSbmtProductFeaturesKey(product_sku=15052004)
>>> cache = ignite_client.get_cache("PUBLIC_ProductFeatures")
>>> value = cache.get(key)
>>>
>>> cursor = cache.scan(partitions=1) # to check that key really exists
>>> true_key, true_value = next(cursor)
>>>
>>>
>>> What I see:
>>>
>>> >>> *true_key*
>>> IoSbmtProductFeaturesKey(product_sku=15052004, version=1)
>>> >>> *key*
>>> IoSbmtProductFeaturesKey(product_sku=15052004, version=1)
>>> >>> *true_key == key*
>>> True
>>> >>> *cache.get(true_key)*
>>> IoSbmtProductFeaturesValue(total_cnt_orders_with_sku=12, version=1)
>>> >>> *cache.get(true_key) == true_value*
>>> True
>>> >>> *cache.get(key)*
>>> >>> *type(cache.get(key))*
>>> <class 'NoneType'>
>>>
>>> So I can’t create Python analogue of Java binary class that is stored as
>>> key in the cache.
>>> I tried also to change case in schema of python class, check all this on
>>> cache with composite key, to not specify *type_id* - nothing helps :(
>>>
>>> Please help.
>>>
>>> *--*
>>>
>>> *Роза Айсина*
>>> Старший разработчик ПО
>>> *СберМаркет* | Доставка из любимых магазинов
>>>
>>>
>>> Email: roza.ays...@sbermarket.ru
>>> Mob:
>>> Web: sbermarket.ru
>>> App: iOS
>>> <https://apps.apple.com/ru/app/%D1%81%D0%B1%D0%B5%D1%80%D0%BC%D0%B0%D1%80%D0%BA%D0%B5%D1%82-%D0%B4%D0%BE%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B0-%D0%BF%D1%80%D0%BE%D0%B4%D1%83%D0%BA%D1%82%D0%BE%D0%B2/id1166642457>
>>> и Android
>>> <https://play.google.com/store/apps/details?id=ru.instamart&hl=en&gl=ru>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> *УВЕДОМЛЕНИЕ О КОНФИДЕНЦИАЛЬНОСТИ:* это электронное сообщение и любые
>>> документы, приложенные к нему, содержат конфиденциальную информацию.
>>> Настоящим уведомляем Вас о том, что, если это сообщение не предназначено
>>> Вам, использование, копирование, распространение информации, содержащейся в
>>> настоящем сообщении, а также осуществление любых действий на основе этой
>>> информации, строго запрещено. Если Вы получили это сообщение по ошибке,
>>> пожалуйста, сообщите об этом отправителю по электронной почте и удалите это
>>> сообщение.
>>> *CONFIDENTIALITY NOTICE:* This email and any files attached to it are
>>> confidential. If you are not the intended recipient you are notified that
>>> using, copying, distributing or taking any action in reliance on the
>>> contents of this information is strictly prohibited. If you have received
>>> this email in error please notify the sender and delete this email.
>>> *--*
>>>
>>> *Роза Айсина*
>>> Старший разработчик ПО
>>> *СберМаркет* | Доставка из любимых магазинов
>>>
>>>
>>> Email: roza.ays...@sbermarket.ru
>>> Mob:
>>> Web: sbermarket.ru
>>> App: iOS
>>> <https://apps.apple.com/ru/app/%D1%81%D0%B1%D0%B5%D1%80%D0%BC%D0%B0%D1%80%D0%BA%D0%B5%D1%82-%D0%B4%D0%BE%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B0-%D0%BF%D1%80%D0%BE%D0%B4%D1%83%D0%BA%D1%82%D0%BE%D0%B2/id1166642457>
>>> и Android
>>> <https://play.google.com/store/apps/details?id=ru.instamart&hl=en&gl=ru>
>>>
>>>
>>>
>>>
>>>
>>> *--*
>>>
>>> *Роза Айсина*
>>>
>>> Старший разработчик ПО
>>>
>>> *СберМаркет* | Доставка из любимых магазинов
>>>
>>>
>>>
>>> Email: roza.ays...@sbermarket.ru
>>>
>>> Mob:
>>>
>>> Web: sbermarket.ru
>>>
>>> App: iOS
>>> <https://apps.apple.com/ru/app/%D1%81%D0%B1%D0%B5%D1%80%D0%BC%D0%B0%D1%80%D0%BA%D0%B5%D1%82-%D0%B4%D0%BE%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B0-%D0%BF%D1%80%D0%BE%D0%B4%D1%83%D0%BA%D1%82%D0%BE%D0%B2/id1166642457>
>>> и Android
>>> <https://play.google.com/store/apps/details?id=ru.instamart&hl=en&gl=ru>
>>>
>>>
>>>
>>> *УВЕДОМЛЕНИЕ О КОНФИДЕНЦИАЛЬНОСТИ:* это электронное сообщение и любые
>>> документы, приложенные к нему, содержат конфиденциальную информацию.
>>> Настоящим уведомляем Вас о том, что, если это сообщение не предназначено
>>> Вам, использование, копирование, распространение информации, содержащейся в
>>> настоящем сообщении, а также осуществление любых действий на основе этой
>>> информации, строго запрещено. Если Вы получили это сообщение по ошибке,
>>> пожалуйста, сообщите об этом отправителю по электронной почте и удалите это
>>> сообщение.
>>> *CONFIDENTIALITY NOTICE:* This email and any files attached to it are
>>> confidential. If you are not the intended recipient you are notified that
>>> using, copying, distributing or taking any action in reliance on the
>>> contents of this information is strictly prohibited. If you have received
>>> this email in error please notify the sender and delete this email.
>>>
>>
>
> --
> Sincerely yours, Ivan Daschinskiy
>
--
Sincerely yours, Ivan Daschinskiy
