Hello everyone,
I am not even sure how to phrase this so I will try to describe the
environment...
We have numerous embedded Ignite instances (server mode) that deploy into a
K8S cluster. Between those instances we have Ignite events being raised for
PUT and EXPIRED. We have at least one
Hi
REST can accommodate the following types:
https://apacheignite.readme.io/docs/rest-api#section-data-types
You can use a ConnectorMessageIntercetor to intercept all incoming/outgoing
rest requests :
https://apacheignite.readme.io/docs/rest-api#section-general-configuration
Hello Ivan, to be more specific, if I want add field
"Users.userName" - current ignite version 2.7.6 is setting the field name as
"Users.userName" and default alias name as "userName" with which makes it
non-queryable, non -indexable and issues during restart due to mismatch in
configuration .
I Will look into it and get back.
Thanks Saikat.
--
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Thank you. One more thing to add - it is able to add index dynamically only
thing is, when I restart the client it is not able join the cluster due to
incorrect alias
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hello Ravichandra,
Here are the docs for Data streamers
https://apacheignite.readme.io/docs/streaming--cep
Also, a sample implementation for data streaming using Apache Flink.
https://dzone.com/articles/data-streaming-using-apache-flink-and-apache-ignit
Please review and let us know if you
The interface does not have 2 sets of methods, so second method with "raw"
reader is extra code with special programmatic changes in extending class to
call "raw" method from superclass. This is how I am using it for now,
however it needs extra code and special handling in extended class which
Hi,
I am working on a POC to preload the data into database with
IgniteDataStreamer using client node
and do rest of the functionalities using server node.
Is there any sample code for reference?
I am using spring boot, extending IgniteRepository for repository layer
Instead of using
Hi Ignite Users,
For the REST API, is that possible to pass custom POJO objects? An example
use case:
Let's say I have a Person class:
class Person {
String name;
UUID id;
Location location;
}
Class Location {
long lat;
long long;
}
Let's say I cache some Person objects in the
Hi Ignite Users,
For the REST API, is that possible to pass custom POJO objects? An example
use case:
Let's say I have a Person class:
class Person {
String name;
UUID id;
Location location;
}
Class Location {
long lat;
long long;
}
Let's say I cache some Person objects in the
Akash,
Network segmentation is one of the causes of the partition loss. The latter
can also be triggered if two or more nodes go down at the same time.
This page explains how to process the partition loss events and available
remediation techniques:
Please check out this note:
https://www.gridgain.com/docs/8.7.6/perf-troubleshooting-guide/troubleshooting#cluster-doesnt-start-after-field-type-changes
There is a hacky way to change the type if you're in development but if
you're in prod then you need to add new columns instead.
-
Denis
On
Ivan,
As a member of the Ignite SQL group, could you please check this thread and
help Hemambara with a proper fix?
-
Denis
On Thu, Oct 10, 2019 at 11:50 AM Hemambara wrote:
> Sorry for the push. This is a major blocker for us. We have coherence
> clients
> where they can add indexes
Sorry for the push. This is a major blocker for us. We have coherence clients
where they can add indexes dynamically and we want to move them to ignite in
next 3 months. Coherence has a way to add indexes dynamically and ignite
also does supporting it. This issue exists event with QuerySqlField.
Thanks Denis.
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Unfortunately, I don’t.
You can ask the VM vendor or the cloud provider (if you use any) for a proper
tooling or logs.
Make sure, that there is no such step in the VM’s lifecycle that makes it
freeze for a minute.
Also make sure that the physical CPU is not overutilized and no VMs that run on
There is no manual way to evict data from memory.
You can limit the size of your data region, so that if this limit is reached,
then some pages will be dropped from memory automatically and replaced with new
ones.
This process is called page replacement. You can read about it here:
Hello!
Currently we do not support altering tables which are created with
indexedTypes/queryEntities.
There are plans to implement it, but your fix, while solving your
particular problem, isn't fit in this scheme IMHO.
Regards,
--
Ilya Kasnacheev
ср, 9 окт. 2019 г. в 22:45, Hemambara :
> My
Hello!
I'm almost certain is that problem is that server node cannot open
connection to client node (and while it tries, it will reject connection
attempts from client node)
clientReconnectDisabled=true will only concern discovery. In your case,
there's no problems with discovery, the problem is
Ibrahim,
Could you please also share the cache configuration that is used for
dynamic creation?
чт, 10 окт. 2019 г. в 19:09, Pavel Kovalenko :
> Hi Ibrahim,
>
> I see that one node didn't send acknowledgment during cache creation:
> [2019-09-27T15:00:17,727][WARN
>
Hi Ibrahim,
I see that one node didn't send acknowledgment during cache creation:
[2019-09-27T15:00:17,727][WARN
][exchange-worker-#219][GridDhtPartitionsExchangeFuture] Unable to await
partitions release latch within timeout: ServerLatch [permits=1,
Do you know of any good tools I can use to check the VM?
On Thu, 10 Oct 2019 at 11:38, Denis Mekhanikov
wrote:
> > Hi Dennis, so are you saying I should enable GC logs + the safe point
> logs as well?
>
> Having safepoint statistics in your GC logs may be useful, so I recommend
> enabling them
Hi Igniters,
Is there any way, to release main memory? I just want to remove few entries
from RAM (and not from the persistence). If I need data again I should be able
to retrieve it from persistence.
I have already gone through the Expiration policy for the same. But, can we set
Expiration
> Hi Dennis, so are you saying I should enable GC logs + the safe point logs as
> well?
Having safepoint statistics in your GC logs may be useful, so I recommend
enabling them for troubleshooting purposes.
Check the lifecycle of your virtual machines. There is a high chance that the
whole
You are correct, it is running in a VM.
On Thu, 10 Oct 2019 at 10:11, Denis Mekhanikov
wrote:
> Hi!
>
> There are the following messages in the logs:
>
> [22:26:21,816][WARNING][jvm-pause-detector-worker][IgniteKernal%xx]
> Possible too long JVM pause: *55705 milliseconds*.
> ...
>
Hi Dennis, so are you saying I should enable GC logs + the safe point logs
as well?
On Thu, 10 Oct 2019 at 11:22, John Smith wrote:
> You are correct, it is running in a VM.
>
> On Thu, 10 Oct 2019 at 10:11, Denis Mekhanikov
> wrote:
>
>> Hi!
>>
>> There are the following messages in the logs:
Ravichandra,
There is no integration for Striim in Apache Ignite codebase, so you need to
check with the Striim documentation if it’s possible to configure it for Ignite.
If you want to use Ignite as a target, then a JDBC adapter should work, if
there is any available.
If Ignite should work as
Hi!
There are the following messages in the logs:
[22:26:21,816][WARNING][jvm-pause-detector-worker][IgniteKernal%xx]
Possible too long JVM pause: 55705 milliseconds.
...
[22:26:21,847][SEVERE][ttl-cleanup-worker-#48%xx%][G] Blocked
system-critical thread has been detected. This can
Favas,
It’s possible to remove a column and add another one using ALTER COMAND SQL
statement, but currently you can't change a column’s type.
Note, that removing a column and adding another one with the same name but with
a different type can lead to data corruption.
Denis
On 10 Oct 2019,
1. Thick client/server nodes use a different communication mechanism than
Thin client nodes,
and network ports are different. Security mechanism is also different.
E.g. you can have a cluster of server nodes running in a controlled
environment, with only 10800
port open to the outside. This way
Hi,
Is there a way in ignite to ALTER the column to change the data type/nullable
property and also RENAME of column?
I saw in ignite documentation that it will add in upcoming releases. Which
release it is planning for?
Regards,
Favas
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