Hey guys, I have a very specific use case where raspberry pis are connected
in a ring topology and I have a docker service running apache ignite. Now I
want them to be running the same distributed database but I don't know what
multicast adress to use in the config.xml file.
For now each rpi has a
Hi,
We are trying to use Apache Ignite via the Redis layer (
https://apacheignite.readme.io/docs/redis ). While trying to store a string
from a ruby redis client and retrieving back, we notice some inconsistency
in the data. We believe that this has something to do with how Apache Ignite
handles e
Hello!
I think you can union a select over a temporary table of one row.
such as
select * from table (id bigint = ?, ...)
However, maybe you should just re-write your upsert with select and then
insert/update.
You're not gaining any more guarantees by using MERGE, as far as I know.
Regards,
--
Hello!
What do you mean by 'full new node'?
Do you know steps to reproduce this behavior?
Regards,
--
Ilya Kasnacheev
ср, 22 апр. 2020 г. в 19:37, 张立鑫 :
> Hello,
> Thanks for your proposal, but i get this error for every full new node. I
> can't do the next things.
>
> Regards
>
> Ilya Kasna
Hello!
My recommendation is to use REST API instead of redis/memcached.
Regards,
--
Ilya Kasnacheev
пт, 24 апр. 2020 г. в 12:08, scriptnull :
> Hi,
>
> We are trying to use Apache Ignite via the Redis layer (
> https://apacheignite.readme.io/docs/redis ). While trying to store a
> string
> fr
Full new node is not have work directory.
I don't know reproduce this behavior, but i used `ContinuousQuery`
`SqlQuery` `Sql update` and `put value` frequently on service at the same
time.
B+Tree is updated frequently?
Ilya Kasnacheev 于2020年4月24日周五 下午7:57写道:
> Hello!
>
> What do you mean by 'ful
Hello!
I think you need to figure out how to reproduce it if we are to fix it.
I have found one ticket somewhat similar to your issue:
https://issues.apache.org/jira/browse/IGNITE-10501
Regards,
--
Ilya Kasnacheev
пт, 24 апр. 2020 г. в 15:12, 张立鑫 :
> Full new node is not have work directory.
Hello!
Have you tried supplying different group name in CollectionsConfiguration
when creating a Queue?
Regards,
--
Ilya Kasnacheev
ср, 22 апр. 2020 г. в 11:09, Sebastian Sindelar <
sebastian.sinde...@nexus-ips.de>:
> Hallo.
>
> Our application uses ignite to share data between different serv
Hello!
I've not heard of issues such as this one. It would help if you have a
reproducer (one which creates a lot of load and detects cases like these).
Regards,
--
Ilya Kasnacheev
вт, 21 апр. 2020 г. в 14:39, neerajarora100 :
>
> I have a table in which during the performance runs, there are
Hello!
You can probably set clientReconnectDisabled to 'true' to generate this
event on client.
Regards,
--
Ilya Kasnacheev
вт, 21 апр. 2020 г. в 13:35, VeenaMithare :
> Thanks Monal,
>
> What is the best way to generate a EVT_NODE_SEGMENTED event on the client
> side for testing the event ha
Hello!
I remember this question on Stack Overflow, and the situation was, your
callback was binding IgniteCache within its context.
It is recommended to make your CQ callbacks inner static classes (not
lambdas or anonymous inner classes).
Regards,
--
Ilya Kasnacheev
чт, 16 апр. 2020 г. в 13:2
Hi,
Server nodes should be able to communicate with each other directly, for
example, for rebalancing purpose or sending current partition distribution.
So, if they're able to directly communicate with each other, you can either
configure all their static Ips(not necessary for Multicast Ip finder)
Hello!
I came across this solution:
select dateadd('s', 1587750989, '1970-01-01 00:00:00 UTC');
https://stackoverflow.com/questions/31804762/how-to-convert-timestamp-to-seconds-in-h2
Regards,
--
Ilya Kasnacheev
пт, 17 апр. 2020 г. в 10:06, dbutkovic :
> Hi,
> is there a function with which ti
Hello!
I guess that EPOCH() returns
--
Ilya Kasnacheev
пт, 17 апр. 2020 г. в 12:07, dbutkovic :
> Hi,
> Ignite function EXTRACT (EPOCH from CURRENT_TIMESTAMP(3)) return seconds in
> future!!!
>
>
> Current date and time on UNIX host, I am in Zagreb/Croatia CEST GMT+2
>
> [root@incumbossdev01
Hello again!
I guess that EPOCH is calculated relative to current time zone, not UTC.
This means you will have to adjust it:
~/Downloads/apache-ignite-2.8.0-bin% date
Пт апр 24 18:16:55 MSK 2020
~/Downloads/apache-ignite-2.8.0-bin% bin/sqlline.sh
sqlline version 1.3.0
sqlline> !connect jdbc:ignite
Hello!
You can do cache.clear() or you can drop and create table (or cache).
I'm not sure what will be faster. It depends, since the latter will cause a
Partition Map Exchange, while former will be executed entirely in
background.
Regards,
--
Ilya Kasnacheev
вт, 21 апр. 2020 г. в 05:39, 18624
Hello!
If there are any images, we never got to see these. Can you link them on
some external resource?
Thanks,
--
Ilya Kasnacheev
пн, 20 апр. 2020 г. в 18:25, Jueverhard :
> I have a Apache Ignite database running which I want to interact with using
> Python thin client (pyignite). I've alre
Hello!
Caused by: java.io.InvalidClassException:
javax.cache.configuration.MutableConfiguration; local class
incompatible: stream classdesc serialVersionUID = 201405, local class
serialVersionUID = 201306200821
I think this is caused by different versions of jcache dependency on
your nodes. One
Hello!
I have added comment to this ticket describing why does it happen and how
to fix it.
In Ignite, when you get key from your value binary object, it's actually a
wrapper pointing at some position in its parent (value) binary object. When
you try to put it to cache, indexing cannot process it
Hi Illya,
I did end up just doing select then insert/update in the end to work around
this.
I didn't try selecting over a temp. table though.
There are no additional guarantees as far as I know either but there used
to be a performance impact.
We're migrating functionality from using cache.put/pu
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