Hello,
Do I understand correctly, that each BinaryObject that is returned by
IgniteCache.get() and IgniteCache.getAll() method calls on a local node
contains an internal on-heap byte array, and object unmarshalling occurs
from that array, and not from off-heap memory?
> On Jan 21, 2021, at 5:17 PM, akorensh wrote:
>
> Hi,
> Can you actually see what the data distribution of itemid is.
>
> AffinityKey will direct Ignite to use that specific column (itemid) for
> partition mapping.
> If the data in itemid is in a narrow range, then all data will be put
I am reading performance tips on Ignite.Net
(https://apacheignite-net.readme.io/docs/performance-tips#section-tune-cache-start-size)
and upon "Tune Cache Start Size", there should be a property called
"StartSize" in CacheConfiguration. But there is no such property. What
should the configuration
t’s probably due to that the first value (when the queue is empty)
always has the same key
Shouldn't the implementation prefer polling clients that are local to
the "put" if the queue is empty?
Regards
Peter
Am 04.12.18 um 19:07 schrieb Peter:
> Hello Stan,
>
> Thanks for your detaile
be several times slower like I
currently observe in my test environment?
Regards
Peter
Am 03.12.18 um 19:02 schrieb Stanislav Lukyanov:
>
> I think what you’re talking about isn’t fairness, it’s round-robinness.
>
> You can’t distribute a single piece of work among multiple nodes
>
nments and/or environments with many clients this could make
problems. I have created an issue about it here:
https://issues.apache.org/jira/browse/IGNITE-10496
Kind Regards
Peter
Am 30.11.18 um 01:44 schrieb Peter:
>
> Hello,
>
> My aim is a queue for load balancing
e? Or is it required to do queue.take() inside a Runnable
submitted via ignite.compute().something?
I also played with CollectionConfiguration.setCacheMode but the problem
persists. Any pointers are appreciated.
Kind Regards
Peter
To answer my own question: the speed seems to be expected and lays in
the same range like e.g. redis+redisson
Peter
Am 26.11.18 um 16:32 schrieb Peter:
>
> Hello,
>
> I'm currently trying Apache Ignite and love the concept.
>
> I have created a simple example of what I'm
arm
up everything before measuring the speed. I also tried various different
JVM settings <https://apacheignite.readme.io/docs/jvm-and-system-tuning>
without success.
Kind Regards
Peter
PS: I cross-posted this a few days ago on SO:
https://stackoverflow.com/q/53454232/194609
If you don't do GetAll() and just do Query(new SqlFieldsQuery...), the
FieldsQueryCursor returned will have the column count and name of your result
set.
Hope this help.
On Tuesday, November 20, 2018, 8:43:22 PM EST, siva
wrote:
Hi,
How to get the field names in select query?
I am
);
This way SQL-compatible format is enforced, and non-UTC values will cause an
exception.[1]
https://apacheignite-net.readme.io/docs/platform-interoperability#section-type-compatibility
On Tue, Nov 20, 2018 at 12:06 AM Peter Sham wrote:
Sure. Hope this won't get too long and will still
From what I understand, the first cache created by getOrCreate, where you will
be using to run the SQLFieldsQuery to create your table, is just a dummy. So
name it as anything other than "Persons". Yes. It may sound counter
intuitive. I'm still learning so may learn the reason behind it
Sure. Hope this won't get too long and will still be readable from e-mail, and
thank you for helping. Really appreciate it.
using System;using System.Collections.Generic;using System.Linq;using
System.Text;using System.Threading.Tasks;using Apache.Ignite.Core;using
you will have Fields which are the columns.
And for question 2, I think, yes, from my learning, SQL Create Table always
create another cache with default naming like SQL_PUBLIC_. But
according to manual, you can override the name by supplying options after
"with".
Happy Coding!
Additional findings. Actually the SQL schema defined by running sql create
table works fine except for the date field. So I suspect the error message
"BinaryInvalidTypeException: Unknown pair [platformId=0,
typeId=-1854586790]" would probably mean the framework cannot find a mapping
between Java
Hello,
I’m trying to learn Ignite.Net and has been following examples bundled with
source or binary distribution. However, when I try to define SQL Schema that
will match an object either by sql create table statement or using QueryEntity
in cache configuration, without resorting to
Bhaskar,
ignitevisorcmd.sh currently resides in /usr/share/docs/apache-ignite/bin
directory (as an example). Not sure how to correctly run it - I guess it
should be either copied to /usr/share/apache-ignite/bin or run with defined
IGNITE_HOME env variable.
On Fri, 15 Jun 2018 at 01:24, bhaskar
Which Linux do you have?
Currently packages are designed to be compatible with CentOS and RHEL.
To satisfy dependencies, any rpm package that provides “java-1.8.0” should
be installed as well (java-1.8.0-openjdk for instance).
On Wed, 13 Jun 2018 at 01:42, bhaskar
wrote:
> I am trying to
Humphrey,
AFAIK, Web Console Standalone is deliberately designed to have
self-contained Web Agent.
Can you try separate Web Console docker image from experimental nightly
build? [1]
[1]
regards,
Peter
2017-03-08 14:08 GMT+01:00 Andrey Mashenkov <andrey.mashen...@gmail.com>:
> Hi Peter,
>
> I think the message is not relevant.
> It means, Entry had been load from Offhead earlier was evicted to Offheap
> back (as AccessedEvictionPolicy is configured
Hi Andrey,
see
https://github.com/ps4os/ignite_offheap_test/blob/master/src/main/java/demo/RunIgniteTester.java#L83
Kind regards,
Peter
2017-03-03 13:35 GMT+01:00 Andrey Mashenkov <andrey.mashen...@gmail.com>:
> Hi Peter,
>
> It looks like offheap entry was evicted from cac
have
"soft references" between caches. In our case cache-entries don't have
references to entries in other caches via a reference-variable pointing to
those entries. Instead we store the key (in most cases a string) of the
other cache-entry and do a lookup (once needed).
Any hint is appreciated,
Peter
Hi Val,
thank you for the answer!
Kind Regards,
Peter
2017-03-02 23:31 GMT+01:00 vkulichenko <valentin.kuliche...@gmail.com>:
> Hi Peter,
>
> Starting with 1.9 (which is about to be released) it will be possible to
> avoid key-value printout by setting th
oes Ignite create such log-entries which consist of the
cache-entry-content and some Ignite-Metadata?
How can I disable it?
Any hint is appreciated,
Peter
Hi Alexey,
I see. That sounds reasonable on that level (and is something different).
What is your plan to limit the overhead/impact of detecting and moving
around such small chunks?
Kind regards,
Peter
2017-02-03 14:52 GMT+01:00 Alexey Goncharuk <alexey.goncha...@gmail.com>:
&
ach causes a significant impact for
applications which need to keep huge caches.
Kind regards,
Peter
2017-01-26 15:57 GMT+01:00 Alexey Goncharuk <alexey.goncha...@gmail.com>:
> Hi Peter,
>
> Leaving defragmentation to Ignite is one of the reasons we are trying
> PageMemory approach. In
t debugged it, but the instances are created per cache.
Furthermore, I'm not sure about the memory-page concept, because you would
get pages on top of pages (used by a modern OS).
Sounds like even more fragmentation and in this case Ignite would need to
do the defragmentation.
Kind regards,
Peter
2017-01-2
Hi Val,
that means it depends a lot on the OS and if/how it handles virtual
memory-pages.
So why do you plan to change that?
Thanks,
Peter
2017-01-25 0:14 GMT+01:00 vkulichenko <valentin.kuliche...@gmail.com>:
> Random means anywhere in empty memory space. When you create an entry
However, I would like to avoid that cache-fragmentation hits the
application out of the blue and therefore I try to get an impression about
those internals.
Any hint is appreciated,
Peter
Hi Denis,
I think I've found the issue.
Ignite skips references to Ignite-Caches.
Moving away from the Ignite-Cache, but using the Ignite-Marshaller caused
the issue.
So it isn't an issue Ignite can prevent. Removing those references did it.
Thanks for listening,
Peter
2017-01-22 6:15 GMT+01
eap grows once those 2000 instances get
processed.
(A manually triggered GC can just release few mb.)
I even tried to re-use the marshaller, but nothing changed.
At runtime BinaryMarshaller is used which wraps GridBinaryMarshaller.
Any hint to get rid of the leak is appreciated,
Peter
Hi Val,
thank you for your hint!
I just found out that reducing public-thread-pool-size results in a lower
write-performance.
At least I could reproduce it.
Are there any other information out there besides
https://apacheignite.readme.io/docs/performance-tips ?
Kind regards,
Peter
2016-09-09
) grid-time-coordinator
d) grid-time-server-reader
e) ignite-clock
f) nio-acceptor
g) pub-*
h) session-timeout-worker
i) tcp-disco-msg-worker
j) tcp-disco-srvr
Any hint is appreciated,
Peter
line in the run-method leads to a broken (see LOG.info)
run or a working (createProprietaryLogger().info) run.
I couldn't believe my eyes, however, I can reproduce it over and over again
just by changing this one line.
Kind regards,
Peter
2016-07-18 22:50 GMT+02:00 vkulichenko <valentin.kulich
to a
local-variable (the rest of the call is the same), the side-effect
disappears as well (but I tested that constellation just twice).
Kind regards,
Peter
2016-07-16 2:04 GMT+02:00 vkulichenko <valentin.kuliche...@gmail.com>:
> Hi Peter,
>
> It seems to me that either key and value
Thank you Denis for the hint!
Kind regards
Peter
2016-07-05 14:35 GMT+02:00 Denis Magda <dma...@gridgain.com>:
> Peter,
>
> Measure it basing under your load. Sometimes it’s enough to have Java
> heaps 8 GB in size to work under significant load with off-heap data in
> hu
Hi Denis,
we are trying to store a huge amount of data off-heap (more than 50 GB).
Therefore, we need to know the heap-size which is needed by Ignite to
handle such a huge off-heap cache (which we only need to keep the heap-size
as low as possible due to the GC overhead).
Kind regards
Peter
and comments which
document the goals and observed issues.
Kind regards
Peter
2016-06-29 3:28 GMT+02:00 vkulichenko <valentin.kuliche...@gmail.com>:
> Peter,
>
> This doesn't make much sense to me. With OFFHEAP_TIERED eviction policy
> should not change anything at all, so it sounds lik
, maybe it's a kind of index which needs heap-space.
In that case it would be great to know how much heap-space is safe if the
off-heap size should be ~50 GB.
Kind regards
Peter
2016-06-28 21:14 GMT+02:00 vkulichenko <valentin.kuliche...@gmail.com>:
> Peter,
>
> The only configurati
, CustomEntry> stream =
ignite.dataStreamer(cache.getName())) {
stream.allowOverwrite(true);
//use stream#addData
}
I hope that config makes sense and can't lead to the effect I described
initially.
Kind regards
Peter
2016-06-28 19:23 GMT+02:00 vkulichenko <valentin.k
des, but I couldn't find
the information I'm looking for (which works as expected).
Any hint is appreciated,
Peter
We (Hazelcast) would like to reproduce the benchmark numbers:
https://ignite.apache.org/benchmarks/ignite-vs-hazelcast.html
We have set up 3 separate environments, to reduce the change of
configuration errors, according to the exact specifications on the website,
but have failed to reproduced
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