Re: BinaryMarshaller (micro) Benchmark shows that keepBinary is a bit slower than systematically unmarshall the object

Hello all, I actually found what the problem was. I accessed the fields of the BinaryObject in that way: IgniteCache cacheAsBinary = cache.withNoRetries().withSkipStore().withKeepBinary(); ///Do a million times BinaryObject bo = cacheAsBinary .get(key); Long field1 = o.field("field1"); but I

RE: Drop table taking more time for execution

Hi Denis, We thought it would have the same performance impact as DROP TABLE. Hence we didn’t used it. May be we will try that option and get back to you. Thanks & Regards, Sriveena From: Denis Magda [mailto:dma...@apache.org] Sent: Thursday, August 30, 2018 11:06 AM To: user@ignite.apache.org

Re: Gemfire replacement to Apache Ignite | Guidance Require

Yes, Ignite is an excellent alternative to GemFire. I personally came across many replacements in various organizations. -- Denis On Mon, Aug 27, 2018 at 2:26 AM Nilesh wrote: > Hello, > > We are looking for Apache Ignite for Gemfire replacement. Current we are > facing following issues in

Re: Drop table taking more time for execution

> > Next time if there is change in the data from the data source in terms of > addition of new column or delete column...Then we drop the table in ignite > and recreate it. Is there any reason why you can't use ALTER TABLE command for the addition or remove of columns in runtime? It will be

Re: How much heap to allocate

Eugene, Just want to be sure you know about the existence of the following pages which elaborate on Ignite memory architecture in details: -

Grid state check before it's completely caught up

Ignite 2.5 Is there a way to ensure grid nodes don't serve any requests until they are caught up with the replicated state in the cluster? Thanks -- Anirudha P. Jadhav

Load balancing ignite get requests

Ignite 2.5 - fully replicated 8 node cluster When running load tests with 1 unique key, only one of the servers gets all the requests. Is there something to be enabled in configuration for balancing load between all machines. Thanks -- Anirudha P. Jadhav

Re: keep old cache value than new value

Thanks Denis for getting back to me much appreciated. The use case we have is we have millions of data points which is updated by the other teams in separate databases. Whenever this happens we receive a message upon update and it triggers the load cache process in ignite. Until now we did not

Re: What happens during network failure?

Lokesh, looking at the javadocs of [1] you can subscribe for EVT_NODE_FAILED and EVT_NODE_SEGMENTED events. >From my personal experience SegmentationPolicy.NOOP is required in very rare cases. My approach would be to STOP the node in most of the cases when the segment happens or you can RESTART

Re: How check if the grid is stopped

Method ignite.cluster().active() shows whether or not a cluster was activated. To check started/stopped state you can use method Ignition.state(igniteInstanceName). ср, 29 авг. 2018 г. в 19:36, Paolo Di Tommaso : > Hi Igniters, > > What's the suggested way to check if the grid is stopped. I'm

ClassNotFoundException when remotely calling cache.withKeepBinary().get(key)

(Full logs and test class should be attached at the bottom..) I am running ver. 2.5.0 in client/server mode and am calling ignite.compute().call(..) on an IgniteCallable. Server node does not have any of my code on its classpath, but peer class loading it set to true on both the server and the

Re: SEVERE: Failed to resolve default logging config file: config/java.util.logging.properties

For the ones having the same problem, I've managed to switch this message off adding the following line just before initialising ignite Logger.getLogger('').setLevel( Level.OFF ) Cheers, p On Mon, Aug 13, 2018 at 10:09 AM Evgenii Zhuravlev wrote: > It's a class loading problem for

How check if the grid is stopped

Hi Igniters, What's the suggested way to check if the grid is stopped. I'm trying ignite.cluster().active() but it's throwing the following exception. java.lang.IllegalStateException: Grid is in invalid state to perform this operation. It either not started yet or has already being or have

Re: How to check if key exists in DataStreamer buffer so that it can be flushed?

Hi Dave, > The DataStreamer is unordered Yes, that is absolutely correct. If I understand correctly, the initial use case is the following: - there is an initial payload that is streamed into the cluster via data streamer. - during that operation, new updates arrive and corresponding

TcpDiscoverySpi.setAuthenticator

Where does this call for a custom plugin need to be done? i.e TcpDiscoverySpi discoSpi = new TcpDiscoverySpi(); discoSpi.setAuthenticator(new TokenAuthenticator()); igniteConfig.setDiscoverySpi(discoSpi); -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: NPE exception in KMeansTrainer

Hi, try to play with current KMeans from master I hope this bug was detected correctly and fixed in https://issues.apache.org/jira/browse/IGNITE-9393 Could you post any results of your experiments here? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

RE: Can Ignite.getOrCreateCache(CacheConfiguration) return null ?

Sorry, my bad. Here’s the method. Basically I am directly invoking the Ignition.ignite() with expiry policy. public static Cache getOrCreateCache(String name, Factory factory) { CacheConfiguration cc = newCacheConfig(name); cc.setExpiryPolicyFactory(factory);

Re: Can Ignite.getOrCreateCache(CacheConfiguration) return null ?

What does the *getOrCreateCache* method do internally? Denis ср, 29 авг. 2018 г. в 5:52, HEWA WIDANA GAMAGE, SUBASH < subash.hewawidanagam...@fmr.com>: > Hi all, > > Is there any possibility for this to happen ? We’re using Ignite 1.9.0 > > > > Following is the code we use to obtain the cache.

Re: keep old cache value than new value

If you use a cache store, and change values in the underlying database, then they won't be propagated to Ignite, and old values will be used. There is no mechanism, that can notify the cache about updates on the 3rd-party DB. But if you didn't have this value in the cache, and read-through

Re: custom plugin question - jdbc client

Hi Taras I am slightly confused. You are mentioning sslcontext and looking at those related classes it doesn't appear to offer authentication and authorization. Here is where i currently am with this project. I have a white list plugin that i will apply to server nodes when they join. I have

Re: Cache Configuration Templates

The SQL interface does not allow you to configure details of the cache except via templates. The use case is I want to start with the cluster specific defaults for a cache, and add some others. I can create a empty real cache that has the defaults, and use its configuration in the

Re: What happens during network failure?

Thanks for the docs. The docs says "EVT_NODE_SEGMENTED" is Generated when node determines that it runs in invalid network segment. But when I disconnected 1 node from a cluster of 2 nodes, none of the 2 nodes generated that event. They both released only "EVT_NODE_FAIL" event. On Wed, Aug 29,

Re: How to check if key exists in DataStreamer buffer so that it can be flushed?

The DataStreamer is unordered. If you have duplicate keys with different values, and you don't flush or take other action, then you will get an arbitrary result. AllowOverwrite is not a solution. Adding to the streamer returns a Future, and all of those futures are notified when the buffer

Re: Difference between replicated and local cache mode regarding time execution of query

Hey :) Actually I use the java api in order to query the ignite DB and I managed to reduce the query time by using setLocal(true). But my real question is that according to documentation it should work the same whether I use local or replicated, So why with replicated it takes so much longer?

Re: apache ignite cassandra persistentStore for enum fields

Ilya, Thank you for all clarifications! Best regards Michal -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: What happens during network failure?

Lokesh, see [1] how node will act when the segmentation will occur. You have to register for EVT_NODE_SEGMENTED events. Ignite plugins contains all this information as well. [1] SegmentationPolicy

Re: How to check if key exists in DataStreamer buffer so that it can be flushed?

Hello, I don't think there is a way to do that check. Moreover, it seems to me that is useless in any case. The thing that allows you to achieve the desired behavior is `allowOverwrite` flag [1]. By default, the data streamer will not overwrite existing data, which means that if it will encounter

Re: What happens during network failure?

Thanks Luqman This is what I'm looking for. I'm stuck on one thing though. What's the difference between EVT_NODE_FAIL and EVT_NODE_SEGMENTED? I want to restart the detached node. I created 2 nodes to experiment. I detached them and both the nodes received EVT_NODE_FAIL but none of them received

Re: keep old cache value than new value

anyone from anyone would be highly appreciated -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

RE: Example for server client configuration in ignite

Thank you so much Evgenii for the pointer. Will try this option and get back to you. Regards, Sriveena From: Evgenii Zhuravlev [mailto:e.zhuravlev...@gmail.com] Sent: Wednesday, August 29, 2018 2:03 PM To: user@ignite.apache.org Subject: Re: Example for server client configuration in ignite

Re: Cache Configuration Templates

Hello! Why don't you just use CREATE TABLE for that? I doubt there will be any significant overhead even if you never use any SQL and only use Cache API after that. Regards, -- Ilya Kasnacheev вт, 28 авг. 2018 г. в 17:37, Dave Harvey : > I did a suggested edit adding the Spring configuration

Re: Example for server client configuration in ignite

Join performed on the server nodes where data placed. To reduce the overall size of the reduce set on the client you can use lazy flag for result set: https://apacheignite-sql.readme.io/docs/performance-and-debugging#section-result-set-lazy-load Evgenii пн, 27 авг. 2018 г. в 19:44, Sriveena

Re: What happens during network failure?

> > I mainly want to know whether the detached need would join the cluster > automatically after the network is back or not? > *need = node I tests such a situation, and found that the detached node is not joining the cluster. Instead it produces following errors: 2018-08-29 12:35:25.625 ERROR