sed, so now my question is now, how to I get the data
> off swap?
> I don't see anything related to eviction of data from the cache that was
> written to swap... plus does it even make sense to have evicted data in
> swap?
>
>
> vkulichenko wrote
> > Basically, swap sp
ed to eviction of data from the cache that was
written to swap... plus does it even make sense to have evicted data in
swap?
vkulichenko wrote
> Basically, swap space is another storage layer. You have on-heap, off-heap
> and then swap. So in case of on-heap mode only entry will be writte
free its memory space up.
More on swapping here: https://apacheignite.readme.io/docs/swap-space
If you need persistence regardless then consider Ignite native persistence
as advised by others.
-
Denis
On Thu, Jan 30, 2020 at 10:07 PM ashishb888
wrote:
> Thank you Evgenii!
>
> I can u
Hello!
I recommend using native persistence in this case.
Regards,
--
Ilya Kasnacheev
пт, 31 янв. 2020 г. в 09:07, ashishb888 :
> Thank you Evgenii!
>
> I can understand that enabling swap may decrease the performance.
> Keeping in that mind I wanted to see what actually happens after enablin
Thank you Evgenii!
I can understand that enabling swap may decrease the performance.
Keeping in that mind I wanted to see what actually happens after enabling
swap.
For that I need to know how to enable swap on a specific node without
affecting other nodes in the cluster.
BR,
Ashish
--
Sent fr
Hi,
First of all, I don't think running 2 server nodes on the same physical
machine is a good idea. They will compete for resources and they will need
to support 2 internal processes(like discovery and communication), which
will have an overhead. It's better to have only one here, or have 2 smalle
I have,
-4 nodes 2 clients & 2 severs. A & B are the clients and X & Y are the
servers.
-32 GB RAM
-2 data regions default & xyz
-A & B takes 2 GB RAM each. X takes 10 GB & Y takes 15 GB but may grow
to 25 GB
-X uses default region and Y uses xyz region
All the above nodes run
Hi Andrei,
The issue hasn't re-occurred (ran twice). But I will keep on iterating and
will let you know.
--
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Hi Andrei,
Please allow me sometime, I will paste the entire log.
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hi,
Possible you face some of JDK issue. Could you please provide full error
message from the dump-core file or log like next:
EXCEPTION_ACCESS_VIOLATION (0xc005) at pc=0x5e5521f4, pid=2980,
tid=0x3220
#
# JRE version: Java(TM) SE Runtime Environment (8.0_131-b11) (build
1.8.0_131-b11)
Hi all,
I am running Ignite on a Swapspace configuration which is defined as
http://www.springframework.org/schema/beans";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/
Basically, swap space is another storage layer. You have on-heap, off-heap
and then swap. So in case of on-heap mode only entry will be written in swap
when it's evicted from cache due to eviction policy. With off-heap enabled
it will be written to swap when it's evicted from there due t
. Although eviction policy writes data to off heap
memory but not to disc.
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Hi,
Yes, swap space is transparent. Only keep in mind that whenever you read an
entry from swap, it has to be unswapped first. So it's useful for the data
that is rarely used, but still can't be accessed sometimes. If all you data
is active, you will end up with a lot of swaps/unswaps
Hi,
I am trying to understand the support in Ignite for spilling over to disk
when memory limits are reached.
I see there is a feature of swap space as in the link below,
https://apacheignite.readme.io/docs/off-heap-memory#swap-space
But, I am not clear on how it works.
When we configure swap
Can you give a link to the thread? If it's a different issue, let's discuss
there.
-Val
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be evicted.
>
> -Val
>
>
>
> --
> View this message in context: http://apache-ignite-users.
> 70518.x6.nabble.com/Swap-space-tp8156p9173.html
> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
>
It is needed, without eviction policy entries will not be evicted.
-Val
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>
> [1] https://apacheignite.readme.io/docs/evictions
>
> -Val
>
>
>
> --
> View this message in context: http://apache-ignite-users.
> 70518.x6.nabble.com/Swap-space-tp8156p9116.html
> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
>
An entry will go to swap only if it's evicted from the cache [1]. If eviction
policy is not configured, this will never happen.
[1] https://apacheignite.readme.io/docs/evictions
-Val
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ad
> more keys than fit in physical memory.
>
>
>
> --
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> 70518.x6.nabble.com/Swap-space-tp8156p9112.html
> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
>
--
Vladislav Pyatkov
I think what he means is that no files are being created.. We are doing some
tests with Ignite and we don't see any use of the cache, even when we load
more keys than fit in physical memory.
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Can you clarify what you mean by "i can swap folders but no files"? Are there
any errors?
-Val
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Hi Vladislav,
i was trying swap space and see it is not working in unix but my test
program worked on windows.
i can swap folders but no files. Did you see any issue in the below
configuration ?
CacheConfiguration pConfig = new
CacheConfiguration();
pConfig.setName("Person_
Hi,
You can to spy movement into swap space using Ignite event listener[1] on
event EventType#EVT_SWAP_SPACE_DATA_EVICTED
By default swap space directory is "swapspace" into working directory (if
you configured IGNITE_HOME the directory placed in it in "work"
sub-directory)
Hi,
I am little new to ignite and trying out few features.
How to log swap space movement ? what is the default location of swap on
disk ?
Thanks.
On Tue, Sep 8, 2015 at 3:06 PM, vkulichenko
wrote:
> yaoqin wrote
> > Is there any extra settings, if I use SSDs instead of normal disks?
> > Or just insert a SSD to an ignite node without any configurations?
>
> Current implementation of swap space SPI uses standard Java
yaoqin wrote
> Is there any extra settings, if I use SSDs instead of normal disks?
> Or just insert a SSD to an ignite node without any configurations?
Current implementation of swap space SPI uses standard Java file API, do it
can transparently work with both spin disks and SSD. There are
Thank you
Is there any extra settings, if I use SSDs instead of normal disks?
Or just insert a SSD to an ignite node without any configurations?
On Mon, Aug 31, 2015 at 7:34 PM, yaoqin
mailto:yao...@huawei.com>> wrote:
Does Swap Space support SSD?
Yes, it does.
And if so, w
On Mon, Aug 31, 2015 at 7:34 PM, yaoqin wrote:
> Does Swap Space support SSD?
>
Yes, it does.
>
>
> And if so, will it improve swap space performace?
>
Yes, SSDs will generally be faster than regular disk.
Does Swap Space support SSD?
And if so, will it improve swap space performace?
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