Re: cannot unsubscribe

Hi! No need to do that ;) I assume you don't get a confirmation email either ? any chance that may end up in spam or something ? it should not but you never know, if I remember correct you need to confirm your unsubscription so you should receive an email. Mikael On 2022-07-14 10:43

Re: cannot unsubscribe

Hi! It should work ok, make sure you use the same email as you used to subscribe so there is no hickup there. Mikael On 2022-07-14 10:28, אריאל מסלאטון wrote: I tried that, multiple times... Still receiving emails ‫בתאריך יום ה׳, 14 ביולי 2022 ב-10:29 מאת ‪Pavel Tupitsyn‬‏ <‪ptu

Re: long JVM pauses

make sure it actually is GC pauses that is causing the problem so that it isn't something else. regards Mikael On 2022-01-12 05:52, satyajit.man...@barclays.com wrote: Hi Mikael, We are  using  below  settings  and  we  have  default  off heap  memory  enabled.  Heap  size  is  10  GB

Re: long JVM pauses

it around for longer time ? Mikael On 2022-01-11 18:23, satyajit.man...@barclays.com wrote: Hi Team, We do  see  long JVM  pauses  and  after  that  nodes in  our cluster  stops. This  happens  in every  two  weeks usually.  What  are  the  possible  solutions  to  avoid long  JVM  pause. Can

Re: Swedish manual

Hi! No there are no known documentation in Swedish for Ignite (at least not that I am aware of), I guess because there are not enough of us speaking Swedish ;) it's not a widespread language, most documentation for Ignite is only available in English (and Mandarin). Mikael On 2021-10-27 11

Re: Enable Native persistence only for one node of the cluster

As long as you only have persistent caches on the persistent nodes it should be fine, you cannot have a persistent cache on a non persistent node as far as I am aware of. On 2021-06-14 14:45, Krish wrote: Is it possible to have a cluster topology where native persistence is enabled only for

Re: Ignite server not equally distribution load

Hi! What is it that is not distributed well, is it cache data/memory load or computations/cpu load ? There are no caches in the config so I assume this is created by the application (if there are any), do you use any custom collocation ? Mikael Do you use any custom collocation of any

Re: Could you please help remove my email from the mail list?

You sent email to user-unsubscr...@ignite.apache.org ? Any chance you have multiple email accounts and that it is using another account ? make sure "to" is actually to your current email and not some other

Re: Ignite performance issues...

SQL insert if that would be possible. Mikael On 2020-11-14 23:35, Wolfgang Meyerle wrote: Hi, I have a question in regards to Apache Ignite performance tuning. This is my config so far: https://pastebin.com/NWDzY3RK I plan to store 2 billion entries in the database. The machine that I have

3.0 and messaging

Hi! It sounds like the messaging API will be removed from 3.0, is that correct ? I use the messaging a lot so in that case I guess I have to work out some other solution for sending messages between nodes, any idea on the best solution for this ?

Re: Ignite Configuration file modify

Ok, well modifying the configuration might not be a good solution, what if you have multiple nodes and the configurations files no longer match, I guess you could create a service that runs on all nodes and have that updating the XML configuration files when you add caches, there is no need to

Re: Ignite Configuration file modify

Hi! No, you need to restart Ignite if you change xml configuration as far as I know. But you can add caches after Ignite is started without any problems, both from code and from SQL, is there any reason you cannot use one of these methods ? Den 2020-06-30 kl. 10:47, skrev kay: Hello, Is

Re: Check service location possible ?

Ah, of course, thanks. Den 2020-06-11 kl. 10:41, skrev Alex Plehanov: Hello, IgniteServices.service(String name) method return service instance if it's deployed locally or null. чт, 11 июн. 2020 г. в 11:16, Mikael <mailto:mikael.arons...@gmail.com>>: Hi! Is there any

Check service location possible ?

Hi! Is there any good way to detect if a service is running local or remote ? I guess I could check the instance of the returned proxy and see if it is the implementation class or not, but it feels a bit ugly, is there some other nicer way to do this ?

Re: Ignite memory memory-architecture with cache partitioned mode

back to A and then to your client. Mikael Den 2020-06-03 kl. 07:22, skrev kay: Hello, I read this page, https://apacheignite.readme.io/docs/memory-architecture. and I would like to know what is going to be happen if there are 3 remote server nodes(A,B,C) , and cache mode is partitioned

Re: Service Node vs Data Node

ry flexible in terms of where data is stored, where and how many services are run and also where compute grid jobs are excuted using properties, affinity keys and a few other ways. The documentation on services and caches is very good and explain everything about how to use them. Mikael Den

Re: [ANNOUNCEMENT] Ignite New Website is Live

Hi! It looks great, I just had a quick look yet but so far no problems. Mikael Den 2020-03-27 kl. 18:46, skrev Denis Magda: Dear Community, I've just merged and released a new version of the website. Take your time and enjoy the new look & feel, structure, content, and navigation

Re: Thick vs Thin client

A thick client is an Ignite node set to client mode, it works just like a server node but it does not keep any data, so no caches are created on the client node and so on, and yes your link [1] describes the difference between a server and a (thick) client. [1]

Re: Cache ExpirationPolicy

Hi! Are you talking about the contents of the cache or the cache itself ? Ignite does not delete the cache, just the entries. Den 2020-02-29 kl. 03:31, skrev Mahesh Renduchintala: Hi I have a cache template marked as below in the defaul_config.xml. I was expecting that table created as

Re: Cores on a node

Hi! int numCores = Runtime.getRuntime().availableProcessors(); It will return an ok value, it may not return the actual number of cores depending on affinity settings and things like that, but it will return the cores that JVM have access to. Mikael Den 2020-02-09 kl. 12:44, skrev F.D

Re: Getting No space left on device exception when persistence is enabled

Hi! Well, the message say no space left on device so you are sure the persistence/WAL data is stored on the drive where you have 100GB free space ? you don't have any user limitations on disk usage or anything like that ? Mikael Den 2020-02-05 kl. 07:18, skrev adipro: Can someone please

Re: Class loader

, if there are any new JARs they will be reloaded, with versioning support. Sounds like the exact thing that you are describing. Regards, -- Ilya Kasnacheev сб, 1 февр. 2020 г. в 14:49, Mikael <mailto:mikael-arons...@telia.com>>: Hi! Will the Ignite class loader find classes/

Re: DataStreamer as a Service

Hi! Not as far as I know, I have a number of services using streamers without any problems, do you have any specific problem with it ? Mikael Den 2020-02-02 kl. 22:33, skrev narges saleh: Hi All, Is there a problem with running the datastreamer as a service, being instantiated in init

Class loader

a new class with a different name it would be possible to load the new updated class without having to restart Ignite, don't even need to restart the service itself. But for that to work the class loader must of course be able to find the new added class file or jar. Mikael

Re: Doubt regarding CACHE Replication.

Hi! Well, if the new server is not part of the baseline topology there would not be any rebalancing, I would think you have to add the new server to the baseline first, at least that is how I think it works. Mikael Den 2020-01-30 kl. 08:20, skrev adipro: I am using Ignite with persistence

Re: Server side cache configuration only

Hi! 1) You do not need to have cache configuration on client side, I do that all the time. 2) Do not know Mikael Den 2020-01-27 kl. 21:42, skrev Sabar Banks: Hello Ignite Community, My questions are: 1) Is it possible to only define cache configurations on the server side, via xml

Re: Data Load to Ignite cache is very slow from Oracle Table

the streamer, there are many examples in the documentation. Mikael Den 2020-01-27 kl. 09:36, skrev nithin91: Hi I am trying to load data from Oracle Table to Ignite Cache using Cache Store Load Cache method. Following is the logic implemented in Load Cache method to load the data from Oracle Table

Java 13 ?

Hi! So far I have been using Java 8 for Ignite but I guess sooner or later I have to switch, it looks like it works fine on Java 11, but how about 13, can't find anything about that ? Mikael

Re: Use custom Data Region or custom Cache for IgniteAtomicReference - Ignite 2.3

if all nodes go down. Mikael Den 2020-01-17 kl. 18:49, skrev j_recuerda: I am using Ignite 2.7.0 -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: How best to push continuously updating ordered data on Apache ignite cache

not be that messy. Mikael Den 2020-01-17 kl. 04:51, skrev trans: *Usecase* Here is the topology we are working on *Server - 1* --> marketData cache, holds different share prices information *Client - 1* --> Pushing data on the cache *Client - 2* --> Continuous query, listening updates coming on m

Re: Caused by: org.apache.ignite.IgniteCheckedException: Requested DataRegion is not configured: Data_Region

regions are defined in the cluster before you try to create the cache ? Mikael Den 2019-12-26 kl. 12:44, skrev ashishb888: Quotes are there I just removed them by mistakenly while pasting here -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Caused by: org.apache.ignite.IgniteCheckedException: Requested DataRegion is not configured: Data_Region

Ok, can't see anything wrong with it, I have never tried to create a cache from client side, even though the cache is never created on client side I guess it's possible you need to have the regions configured on client side also, but the getOrCreateCache do almost nothing on client size,

Re: Caused by: org.apache.ignite.IgniteCheckedException: Requested DataRegion is not configured: Data_Region

Hi! Is that intentional ? you have: dataRegion.setName(Data_Region); I would assume you should have quotes around the name unless you have a String variable named Data_Region that contains the correct name ? Mikael Den 2019-12-26 kl. 11:39, skrev ashishb888: *Server node configuration

Re: Number of backups of the cache named [ignite sys cache]

Hi! It is not the number of backups, I am not sure why it say that value but you always get that for any replicated cache, quick guess is that it is set max integer value when you use replicated instead of partitioned cache. Mikael Den 2019-12-23 kl. 15:00, skrev 李玉珏@163: hi

Re: How to reload a cache being queried with minimum downtime

tion from the query client so I am not sure it is possible for you to do that. Mikael Den 2019-12-12 kl. 03:50, skrev Renato Melo: Hello, Periodically I need to reload a cache that is being massive queried by a stream application. In my current solution every reload I drop the cache, recrea

Re: GridGain Web Console is available free of charge for Apache Ignite

Hi! I guess you should forward that information to GridGain as web console is not part of Apache Ignite. Mikael Den 2019-12-10 kl. 13:10, skrev Prasad Bhalerao: Hi, We found 3 vulnerabilities while scanning Grid Gain Web console application. We are using HTTP and not HTTPS due to some

Re: Failed to start near cache (a cache with the same name without near cache is already started)

rovement I would think that you run it locally or on one node, when you fetch remote data copyOnRead would not make any difference. Mikael Den 2019-12-09 kl. 12:43, skrev Hemambara: I have disabled copyonread and the time taken to getAll() reduced to 1/3. Earlier it was 300 ms on 10k entri

Re: about memory configuration

on, there is no answer that fits all, looking at one of my Ignite applications with 14 caches, 12 services it runs around 800mb heap, as I said before have a peek at the capacity planning documentation it gives a lot if good information on this. Mikael Den 2019-12-08 kl. 14:54, skrev c c: Thanks

Re: about memory configuration

will notice much difference, the entries are still stored in the same way internally. Mikael Den 2019-12-08 kl. 04:03, skrev c c: By reading document we know it need read object from off-heap to on-heap when do some reads on server node. We do some timer job that would query cache

Re: about memory configuration

you need to know on how to configure it. https://apacheignite.readme.io/docs/memory-configuration#section-on-heap-caching https://apacheignite.readme.io/docs/memory-configuration Mikael Den 2019-12-07 kl. 17:41, skrev c c: HI,     According to document we can setup memory size

Re: Improving Get operation performance

replicated of course) I am not sure how the traffic works but if there is only one tcp connection to each node you will not have much use for more than 3 threads I would think. Did you read 500K unique entries or the same multiple times ? Mikael Den 2019-11-26 kl. 21:38, skrev Victor: I am running

Re: Active tasks in cluster

on then the member can be broadcasted to whoever is listening to it or centralised cache location) I am considering future as a handle to the task which can be used to cancel the task even if the submitter node goes down. On Sat 23 Nov, 2019, 7:21 PM Mikael <mailto:mikael-arons...@telia.

Re: Active tasks in cluster

y to get list futures of all active tasks running on all nodes of the cluster? Thanks, Prasad On Wed 20 Nov, 2019, 10:51 PM Mikael mailto:mikael-arons...@telia.com> wrote: Hi! No you cannot serialize any future obj

Invoke and serialization

, it looks like it working fine and static method should be handled as transient I guess, but I though I would ask so I don't run into some nasty problem later. Mikael

Re: Actual size of Ignite caches

Don't think there is any direct way to do it, but you can read out the metric for your data regions and see how much memory is used and how much is free, that would give you a good indication of memory usage Den 2019-11-22 kl. 13:01, skrev ashishb888: Yes I am talking about physical size in

Re: Actual size of Ignite caches

of the cache can be on heap also (to improve on serialization/deserialization performance). Mikael Den 2019-11-22 kl. 10:48, skrev ashishb888: How to get the actual size of caches? And do Ignite cache use heap size provided to the application at the time of starting? -- Sent from: http://apache-ignite

Re: Does ignite suite for large data search without index?

the index for all caches, I am not sure if that would work for you, it depends on what kind of queries you need. In theory you could have 15 nodes and have one cache on each node and ask queries in parallel. I am not at all sure it will work well, it's just an idea. Mikael Den 2019-11-21

Re: Apache Ignite High Memory Usage

0MB, pages are 4KB by default, if your objects are big and use multiple pages you get some overhead there also. You say it use 8.5GB memory, how much is java heap and how much is other memory ? Mikael Den 2019-11-21 kl. 11:01, skrev xabush: I have a serialized object that I load into mem

Re: Does ignite suite for large data search without index?

ion either but it should work. Is it fixed to 15 columns ? or will you have to add more columns in the future ? Den 2019-11-21 kl. 10:56, skrev c c: HI,Mikael Thanks for you reply very much! The type of data like this: member [name, location, age, gender, hobby, level, credits

Re: Does ignite suite for large data search without index?

it is possible to arrange the data in some other way to improve everything Did you test with a single node or a cluster of nodes ? with more nodes you can improve performance as any search can be split up between the nodes, still, some kind of index will help a lot. Mikael Den 2019-11-21 kl. 08:49

Streaming exception

$MessageWorkerThread.body(ServerImpl.java:7119) [ignite-core-2.7.6.jar:2.7.6]     at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) [ignite-core-2.7.6.jar:2.7.6] Mikael

Re: Active tasks in cluster

Hi! No you cannot serialize any future object. Mikael Den 2019-11-20 kl. 17:59, skrev Prasad Bhalerao: Thank you for the suggestion. I will try this. I am thinking to store the task future object in a (replicated)cache against a jobId. If the node goes down as described in case (b), I

Re: Ignite data loss

will see all it does at startup and can see if there is something weird going on, it's lots of information but it usually gives a good indication if there is any problem, nothing else in the logs ? if the nodes clear everything at startup there should be something in the logs. Mikael Den 2019

Re: query if queue exist and get it like getOrCreateCache

Hi! If there is a queue created already with the name "abc" it will just return that queue, if it cannot find it and you have included a configuration it will create it. Mikael Den 2019-11-14 kl. 13:30, skrev Narsi Reddy Nallamilli: Hi Mikael, Do you mean the 4th statement will

Re: query if queue exist and get it like getOrCreateCache

-external=true> name, int cap, CollectionConfiguration <https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/configuration/CollectionConfiguration.html> cfg)| Will get a named queue from cache and create one if it has not been created yet and |cfg| is not |null|. Mika

Re: Question about memory when uploading CSV using .NET DataStreamer

it is something on the .NET side. Mikael Den 2019-11-14 kl. 12:14, skrev Pavel Tupitsyn: Sounds nasty, can you share a reproducer please? On Thu, Nov 14, 2019 at 10:12 AM camer314 <mailto:cameron.mur...@towerswatson.com>> wrote: I have a large CSV file (50 million rows) that i wish

Re: Ignite.Net Read through approach - error : could not create .Net cachestore

if it will find that one ? It sounds like it cannot create the actual cache store but in that case I would think you would get the exception in the server and not the client, is there any more useful information from the exception ? Mikael Den 2019-11-14 kl. 02:41, skrev Sudhir Patil: Hi All

Wait for streamer to "finish" ?

to finish so that the entries are actually in the cache before I continue ? I just realized I have not checked if the entries are actually there, is it possible that the entries are there and it's just not the size that is reported correct yet ? Mikael

Re:

"Affinity Key Mapper" sections here: https://apacheignite.readme.io/docs/affinity-collocation Did you consider the idea of using multiple caches ? that would be much easier to implement if it is a possible solution for you ? Mikael Den 2019-11-01 kl. 03:01, skrev BorisBelozerov: H

Re:

t's easy to mess up the affinity key mapping but it can be done. You can find some ideas here: http://apache-ignite-users.70518.x6.nabble.com/How-to-use-Affinity-Function-to-Map-a-set-of-Keys-to-a-particular-node-in-a-cluster-td21995.html Mikael Den 2019-10-31 kl. 09:27, skrev BorisBelozerov:

Re: How does Apache Ignite distribute???

and an integer as a key where only the integer is used as the affinity key, so all keys with the same integer value (and different strings) will end up in the same node. Mikael Den 2019-10-31 kl. 08:42, skrev BorisBelozerov: Hello, I want to ask a question: Apache Ignite distribute data equal

Streamer question

Hi! If a data streamer with allow overwrite set and I write the same key multiple times to the streamer, is it clever enough to notice this and just replace the key with the last value before it flush the data or will it write the same key multiple times ? Mikael

Re: How to control the distribution??

, attributes for example. Mikael Den 2019-10-25 kl. 04:47, skrev BorisBelozerov: Normally, Apache Ignite distribute data equally to nodes How can I control this distribution? I want to distribute more data to some nodes, and less data to other nodes I also want to choose node to store cache

Re: "Failed to deserialize object" in Client Mode

t all nodes have GridOptimizedMarshaller configured with identical optimized classes lists, if any (see setClassNames and setClassNamesPath methods). If your serialized classes implement java.io.Externalizable interface, verify that serialization logic is correct." Mikael Den 2019-10-23 kl. 08

Re: Performance Question

node is not going to do that. How did you configure the cache ? number of backups ? persistence ? partitioned/replicated ? Mikael Den 2019-10-20 kl. 19:02, skrev Simin Eftekhari: Hello Everyone, I am new to apache ignite. I'd appreciate your help with the following question. I modified

Re: LifeCycleBean problem/question

(-Dlog4j.shutdownHookEnabled=false) and then do a LogManager.shutdown() at the end of Ignites AFTER_NODE_STOP event is complete and now it works just fine. Mikael Den 2019-10-09 kl. 10:54, skrev Ilya Kasnacheev: Hello! I don't think this should happen? Can you add breakpoint to this method

LifeCycleBean problem/question

p in the same application, but I do not think that has anything to do with it and I shutdown the Cassandra client in the AFTER_NODE_STOP event later on. Mikael

Re: JUL logging problem

ilehandler, the console handler is gone, it looks like Ignite removes the Console handler when IGNITE_QUIET=true, or could I be doing something else wrong ? Mikael Den 2019-10-07 kl. 12:02, skrev Ilya Kasnacheev: Hello! When ignite is in verbose mode, it adds IGNITE_CONSOLE_APPENDER impli

JUL logging problem

er get any output to the console, everything is logged ok to the files but nothing on the console, but if I set IGNITE_QUIET=false, then it starts logging to console also, but IGNITE_QUIET=true should only disable INFO and DEBUG as far as I understand. Any idea what I could have messed up ? Mikael

Re: Thick client multiple clusters

Can't you just start multiple clients in the same JVM, one for each Ignite cluster ? I assume you will have your own code running there anyway. Mikael Den 2019-09-17 kl. 13:28, skrev reachtovishal: Hi, We are trying to see if Apache ignite can be used in our org. As part of this , we wanted

Iterator for keys only ?

Hi! What is the best way to iterate over the keys only from a cache ? I don't want the values because these are long text strings so will slow down the iterator a lot. Pretty much the Ignite way of doing map.keySet().iterator(); Mikael

Re: Ignite Performance - Adding new node is not improving SQL query performance

SQL queries on persisted data so you do not have any use of the new node unless it is part of the baseline, that is my understanding on it. Hopefully someone with better knowledge than me will step in and give you a more detailed answer (and correct me if I am wrong). Mikael Den 2019-09-09

Re: Ignite Performance - Adding new node is not improving SQL query performance

scale in an existing topology by setting more or fewer nodes that will store the data. The sections below show how to use the APIs and tools." Mikael Den 2019-09-09 kl. 11:31, skrev Muhammed Favas: Hi, I have an ignite cluster with 4 node(each with 8 core, 32 GB RAM and 30 GB Disk)  with native p

Re: ML stable and performance

-learning Mikael Den 2019-09-06 kl. 11:50, skrev David Williams: I am evaluating ML framework for Java platform. I knew Ignite has ML package. But I like to know its stability and performance for production. Can Ignite ML code run in distribute way? Except its own ML package, which ml packages

Re: What do master node and worker node mean?

Master node is the node where the class is originating from. Den 2019-08-28 kl. 11:51, skrev 李玉珏: hi， In the following documents: Https://apacheignite.readme.io/docs/deployment-modes#overview What do master node and worker node mean?

Log4j2 problem

Hi! I have setup the log4j2 logger and everything works fine until I shutdown the application (2.7.5), I run it with ignite.bat and I have my own code in a LifeCycleBean, I have some code in beforeNodeStop() and some code in afterNodeStop() and it looks like the log4j2 logger stops working

Re: Ignite authentication without persistence enabled?

Hi! You only need persistence for the default data region, you can put your caches in a different data region without persistence, that's what I do. Mikael Like:         class="org.apache.ignite.configuration.DataRegionConfigur

Streamer for updates ?

Hi! If I have to update a large number of items in a cache (same keys, new values every few seconds), but it's the same keys so I need to have allow overwrite enabled, is there any advantage of using a streamer for this or is it better to just collect them in a map and use putAll ? Mikael

Re: After upgrading 2.7 getting Unexpected error occurred during unmarshalling

Hi! Any chance you might have one node running 2.6 or something like that ? It looks like it get a different object that does not match the one expected in 2.7 Mikael Den 2019-01-08 kl. 12:21, skrev Akash Shinde: Before submitting the affinity task ignite first gets the affinity cached

Re: Failing to create index on Ignite table column

? the only things I can think of is if the binary marshaller did complain about your column names, it does not store the names, just a hash code so in theory you could get a name collision but if that was the case I think Ignite would complain when you created the cache. Mikael Den 2019-01-07

Re: ignite questions

value, so a node with attribute x will be assigned all affinity keys with value y. I never tried it but I do not see any reason why it would not work. Mikael Den 2019-01-02 kl. 17:13, skrev Clay Teahouse: Thanks Mikael. I did come across that link before, but I am not sure it addresses my

Re: ignite questions

You can find some information about capacity planning here: https://apacheignite.readme.io/docs/capacity-planning About your India example you can use affinity keys to keep data together in groups to avoid network traffic. https://apacheignite.readme.io/docs/affinity-collocation Mikael Den

Re: ignite questions

ups. Mikael Den 2018-12-31 kl. 14:01, skrev Clay Teahouse: Hello All, I am new to ignite and have several general questions. I'd appreciate your feedback. 1) Cache groups: according to the ignite documentation, cache groups help with scaling and performance but might hurt reads. Where is the bala

Re: Question about write speed.

them ? I have an application that writes around 15000+ records per second on a single node with streaming without problems (affinity string keys and small values, <100 bytes), and it can handle around 5000 entries per second with put( set), all with persistence enabled. Mikael Den 2018-12

Re: Did anyone write custom Affinity function?

id's in some way ? if you for example had 30 group id's you would have a much better distribution of the entries. Mikael Den 2018-12-18 kl. 15:14, skrev ashishb008: Hello, As of now, we have 3 nodes. We use group ID as affinity key, and we have 3 group IDs (1, 2 and 3). And we limit cache

Page size

performance will not be the best with 4kb page size for this but maybe I should try to store them some other way, would IGFS be a better choice for very large values ? IGFS just store the files in a k/v cache anyway ? Mikael

Re: Did anyone write custom Affinity function?

for affinity key, say you have 10 nodes and you use a "customer id" as affinity key and you only have 8 customers it will not work of course. Mikael Den 2018-12-18 kl. 06:24, skrev ashishb008: I want all nodes in a cluster to have equal number of cache partitions. With default Affinit

Re: Best Practises for upgrading Ignite versions

Hi! Yes either that or startup another cluster and switch over to that before shutting down the old, as far as I understand Gridgain has a solution for rolling updates. Mikael Den 2018-12-12 kl. 01:15, skrev Anand Mehta: Hi, We are going to upgrade our Ignite Distributed Clusters from

Re: Infinispan vs Ignite?

the data and so on). Mikael Den 2018-12-11 kl. 05:04, skrev the_palakkaran: Andrey,. I am trying to set up a distributed datagrid for my application. With Ignite, I can create a cluster of cache nodes for this purpose. This can alao be achieved on infinispan I believe. So what really makes

Re: SQL support for (insert if not exists, update if exists) operation.

I guess you have to use UPDATE/INSERT, if the records exists most of the time it's not a huge performance killer: if( update ... == 0) insert Mikael Den 2018-12-05 kl. 11:37, skrev Ilya Kasnacheev: Hello! Then answer seems to be "no" then, I guess. Regards, -- Ilya

Re: Ignite distribution configuration.

can work with, you can always play around with the cache configuration later. Mikael Den 2018-12-03 kl. 07:59, skrev Viraj Rathod: I’m a new user of apache ignite. I want to know if my data is supposed to be partitioned amongst 3 nodes and data of each node is supposed to have a backup

Re: Use case difference between CacheLoader, CacheWriter and CacheStore?

both, |CacheLoader| and |CacheWriter|." Mikael Den 2018-11-27 kl. 10:35, skrev the_palakkaran: Hi, What is the difference in use case between CacheLoader, CacheWriter and CacheStore ? CacheStore contains implementations for methods in the other two, so why should I use them is wha

Re: Question about add new nodes to ignite cluster.

e, if your nodes does not store data they do not need to be part of the topology, they can still do everything else. Mikael Den 2018-11-26 kl. 10:20, skrev Justin Ji: I added 3 nodes to existing cluster, but not add them to topology, like below: Cluster state: active Current topology version: 93

Re: Long activate time with tens of millions data

Hi! Do you use persistence ? if so, do you have 150 different cahes ? if that is the case I would think trying to use cache groups would help a lot if that is possible for you Mikael Den 2018-11-21 kl. 09:03, skrev yangjiajun: I have a ignite node which is version 2.6.I use

Re: Ignite startu is very slow

Hi! This one looks a bit fishy to me: "Failed to wait for initial partition map exchange. Possible reasons are:..." Do you use transactions ? Mikael Den 2018-11-16 kl. 07:09, skrev kvenkatramtreddy: Hi Team, I am using Snapshot version of 2.7(Ignite ver. 2.7.0.20180806#1970010

Events question

, is that possible ? It sounds like keeping lots of events around after they have been triggered would be wasting memory, or maybe it would not make any difference ? Mikael

Re: Why Ignite use so many heap space?

even index of heap it should work fine, but i guess it all depends on what your application do. Mikael Den 2018-11-08 kl. 14:07, skrev yangjiajun: HI. I have an ignite node which is version 2.6 and has fixed 12GB heap memory and 30GB data region.I use it as a database with persistence.It uses 90%-9

Re: Does ignite provide a Comparator for Sort?

Hi! I don't think so but can't you use an index and an SQL query instead ? Mikael Den 2018-11-01 kl. 06:33, skrev Ignite Enthusiast: I am new to Apache ignite.  I have used HAzelcast extensively and one of the features I really liked about it is the Comparator that it provides on the Cache

Re: how to do i hibernate configuration for Apache ignite database

Hi! Are there any information missing in the documentation ? https://apacheignite-mix.readme.io/docs/hibernate-l2-cache Mikael Den 2018-10-31 kl. 06:24, skrev Malashree: how to do hibernate configuration using ignite database. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: OVER() clause in ignite

Hi! I am not sure, but you might find something useful here: https://stackoverflow.com/questions/6249449/is-h2-database-able-to-make-sql-query-of-the-over-clause-with-aggregate-function Mikael Den 2018-10-24 kl. 08:55, skrev Sriveena Mattaparthi: Thanks Mikael..Could you please suggest any

  1   2   >