Thank you both for clarifying this. I usually also have large objects 3KB so
I thought about increasing the page size to 32KB to reduce the number of
pages and thus reduce the speed at which we get to the 2/3 of dirty pages.
Good idea?
On top of that during the process at some I generate a
Hi,
All caches, including caches for atomic structures and in-memory caches,
are not available before activation. I believe it makes sense to move your
code for running after the activation event:
https://apacheignite.readme.io/docs/baseline-topology#cluster-activationdeactivation-events
.
Hello.I use SET STREAMING ON and SET STREAMING OFF style to flush data to
ignite.Ignite sometimes hangs on SET STREAMING OFF.
The thread hangs on client side looks like:
daemon prio=5 os_prio=0 tid=0x7fdba0003000 nid=0x3c1 waiting on
condition [0x7fdf473f1000]
Evgeniy,
Thanks for clarifying, I completely forgot about this behavior!
-
Denis
On Tue, Jun 16, 2020 at 5:10 PM Evgenii Zhuravlev
wrote:
> Steve,
>
> Actually, disabling WAL is a good option for your use case. Checkpoint
> mechanism is the same with disabled WAL, the only difference is that
Steve,
Actually, disabling WAL is a good option for your use case. Checkpoint
mechanism is the same with disabled WAL, the only difference is that node
is not writing WAL to the disk on each operation. Usually, it might make
sense to disable WAL for initial loading - when you can lose the data in
Steve,
Please check these generic recommendations if you haven't done so already:
https://apacheignite.readme.io/docs/durable-memory-tuning#native-persistence-related-tuning
Otherwise, send us a note if you come across any bottlenecks or issues so
that we can give you more specific
Thanks a lot for the recommendation. So keeping the WAL, disabling archiving.
I understand all records are kept on disk.
Thanks again. Anything else?
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hi Steve,
I think that you can get a performance hit for your write operations by
disabling the WAL. It serves two purposes in Ignite. The first is the
recovery while the second is fast disk writes. The WAL is an append-only
structure and Ignite can persist changes to disk really quick. If the
Hello,
I am trying to use ignite persistence to "extend" memory. That is to replace
the swap that is not working very well.
Therefore since I do not care about recovery I disabled the WAL. Are there
other things you would recommend to configure to use the ignite persistence
as a sort of swap.
Hi Everyone,
We released a new monitoring and management tool this month for Apache
Ignite and GridGain applications; GridGain Control Center. There is a
webinar schedule for tomorrow, JUNE 17 2020 10:00AM PDT (-07:00), where I
will provide an overview of the features and demo different use
Hi All,
Is it possible to use pivot function with JDBC SQL used with apache ignite?
If not, is there a function available with such a functionality?
thanks
This is my SQL table schema
ID (Long), URL (Varchar), SCORE (Double), APPNAME_ID (Long)
We have composite index on Score, Appname_Id.
Based on your answer I've two questions.
1. How can I insert SQL rows using JCache data streamer API (if possible,
with example)? Currently I'm using jdbc
Hi stephen. Thanks so much for reply.
This is my SQL table schema
ID (Long), URL (Varchar), SCORE (Double), APPNAME_ID (Long)
We have composite index on Score, Appname_Id.
Based on your answer I've two questions.
1. How can I insert SQL rows using JCache data streamer API (if possible,
with
Hi stephen. Thanks so much for reply.
This is my SQL table schema
ID (Long), URL (Varchar), SCORE (Double), APPNAME_ID (Long)
We have composite index on Score, Appname_Id.
Based on your answer I've two questions.
1. How can I insert SQL rows using JCache data streamer API (if possible,
with
It looks like you copied this configuration template from this
documentation file:
https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/IgniteSpringBean.html
It assumes that an Ignite instance will be started separately and then
passed into this configuration file via
It depends on what you assume under a spring bean.
If that's an entity of a Spring framework such as Controller, Repository or
Entity, then you don't need to register anything with Ignite. Use those
Spring annotations throughout your application and have your Controllers &
Repositories access an
Hello,
Does the ignite operate on a spring framework basis?
Can I register a spring controller in classpath at server remote node and
use it?(using component , like @Controller)
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hello,
I apologize for sent a lot of e-mails with the same content.
I also show your answer on Stack Overflow.
I just configure start in xml file like this
and There are caches and dataregions.
I execute ignite.sh config.xml &
What should I configure for registering spring bean??
There’s not one, right way of doing it. In Java it’s something like this.
Define your classes:
public class AppDetailsKey {
@QuerySqlField
private Long id;
public AppDetailsKey(Long id) {
this.id = id;
}
}
public class AppDetails {
@QuerySqlField
private String
Hello,
I'm running Apache Ignite (2.4.0) embedded into a java application that runs
in a master/slave architecture. This means that there are only ever two
nodes in a grid, in FULL_SYNC, REPLICATED mode. Only the master application
writes to the grid, the slave only reads from it when it gets
Hello!
Try setting IgniteConfiguration.workDirectory to some writable path.
Regards,
--
Ilya Kasnacheev
чт, 11 июн. 2020 г. в 18:58, narges saleh :
> Hi Ilya,
> IGNITE_HOME is /opt/ignite and in ignite-log4j, the log file set to
>
> I don't have any issue on the server side.
>
> This is
Hello!
You have already sent a lot of e-mails with the same content.
Please avoid sending more of these.
As I have told you on Stack Overflow, Ignite is not a distributed Spring :)
it will not register any spring components, but can re-use spring context
and make beans from it available to
Hello,
Does the Apache Ignite operate on a spring framework basis?
Can I register a spring controller in classpath at server remote node and
use it?
(using component scan, like @Controller)
Thank you
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Does the ignite operate on a spring framework basis?
Can I register a spring controller in classpath at server node and use
it?(using component scan, like @Controller)
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hello,
Does the Apache Ignite operate on a spring framework basis?
Can I register a spring controller in classpath at server remote node and
use it?
(using component scan, like @Controller)
Thank you
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hello,
Does the ignite operate on a spring framework basis?
Can I register a spring controller in classpath and use it?(using component
, like @Controller)
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hello, I start node using
sh ignite.sh /ERP/Domains/CacheDomain/config/config.xml & command
It worked well before I added IgniteSpringBean.
After I add this code,
2020-06-16T16:20:38,429][INFO ][main][G] Node started : [stage="Configure
Hello,
Does the ignite operate on a spring framework basis?
Can I register a spring controller in classpath at server remote node and
use it?(using component , like @Controller)
Thank you
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hi Alex,
Thanks for providing the additional detail on the checkpointing memory
requirements.
As you say, this is difficult to calculate statically, but it seems to
indicate that small data regions are bad (ie: susceptible to this issue),
so should be avoided.
Our current system really only has
Raymond,
When a checkpoint is triggered you need to have some amount of free page
slots in offheap to save metadata (for example free-lists metadata,
partition counter gaps, etc). The number of required pages depends on count
of caches, count of partitions, workload, and count of CPUs. In worst
Hello, I start node using command
' sh ignite.sh ./config/config.xml & '
It worked well before I added IgniteSpringBean.
After I add this code,
2020-06-16T16:20:38,429][INFO ][main][G] Node started : [stage="Configure
system pool" (53
Hello, I start node using command
' sh ignite.sh ./config/config.xml & '
It worked well before I added IgniteSpringBean.
After I add this code,
2020-06-16T16:20:38,429][INFO ][main][G] Node started : [stage="Configure
system pool" (53
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