Re: Ignite Remote Caching

abhishek dutta gupta wrote > Can we write custom query? How good is the query part of this apart from > Infinispan? What are the advantages rather than Infinispan? Ignite fully supports SQL querying, so you can execute any query that is possible with SQL. abhishek dutta gupta wrote > How we can

Re: How to create a dump of updated data in cache into local

Responded on SO: https://stackoverflow.com/questions/44884312/ignite-data-backup-in-hard-disk -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/How-to-create-a-dump-of-updated-data-in-cache-into-local-tp14268p14287.html Sent from the Apache Ignite Users

Re: Apache heap getting increase with cacheConfig.setCopyOnRead as false

Prashant, Do you mean that you have a client and a server on the same box? If so, why do you need that? Client node is also a JVM process and it will always consume some memory. Of course, much less than server as it doesn't store data. -Val -- View this message in context:

Re: assign alias for table name using annotations

No, this can be done only via QueryEntity. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/assign-alias-for-table-name-using-annotations-tp13759p14292.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: cache insert/update performance

Hi Dmitri, I think the answer is no. What's is the purpose of this? -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/cache-insert-update-performance-tp14049p14291.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: Modelling Question

Hi Gordon, Separate cache per type is recommended approach. Feel free to use it. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Modelling-Question-tp14087p14290.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Facing Segmentation falt in multi threaded C++ Application with ignite.

Hi there, i have simple C++ application that creates threads and assigns a range of key's to each thread, in that range the threads will spontaniously performing Put and Remove operations with the cache. every thing works fine when i have one or two thread in the node (server), when i try to

Re: Using Camel-Ignite for inserting json object to Ignite's Cache

Hi Austin, Can you ask Camel community about this? I'm not sure if this is a valid test or not. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Using-Camel-Ignite-for-inserting-json-object-to-Ignite-s-Cache-tp13513p14296.html Sent from the Apache Ignite

Re: Ignite Remote Caching

Hi, Please properly subscribe to the mailing list so that the community can receive email notifications for your messages. To subscribe, send empty email to user-subscr...@ignite.apache.org and follow simple instructions in the reply. abhishek dutta gupta wrote > I have query on how we can

RE: Possible race condition when starting up Ignite nodes taking part in partition affinity map

I have upgraded to 2.0 and things seem much better now (though with some other oddities I am chasing down). I may also have been mixing release and debug builds (fun with batch files) which probably was not helping. Just anecdotally, 2.0 feels slower than 1.9 in terms of the speed of responses

Possible race condition when starting up Ignite nodes taking part in partition affinity map

Hi, I have been working on a POC using the Ignite v1.9 C# client and have been simulating clusters of Ignite nodes by running collections of Ignite processes on the same physical machine. As a part of this I am running 4 Ignite nodes (where each node is a windows forms application for

Re: Ignite Cassandra Exception

nash1k wrote > hi! > Did you resolve this problem? We have the same issue and can't do anything > with it. Yep cassandra is under high load but how we can fix it? More > cassandra nodes or more ignite nodes? Or may be there are some hacks? > (read through, write through, write behind with batches

Re: odd query plan with joins?

Hi Doug, _key is implicitly indexed, no need to configure additional index for it. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/odd-query-plan-with-joins-tp13680p14279.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: IGFS Question

If you're reloading data from IGFS to a regular cache, why do you need IGFS in the first place? Why not load data directly in the cache? -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/IGFS-Question-tp13447p14280.html Sent from the Apache Ignite Users

Re: Grid/Cluster unique UUID possible with IgniteUuid?

Muthu, IgniteAtomicSequence generates unique long value, while IgniteUuid is a heavier object. Other than that, they provide similar guarantees. -Val -- View this message in context:

Re: Concurrent job execution and FifoQueueCollisionSpi.parallelJobsNumber=1

Hi Ryan, Yes, I think. But note that will create a high contention on this method - each job request will acquire the same lock. Although, it's probably not an issue in your case as you do not allow to execute more than one job at a time anyway. -Val -- View this message in context:

Re: Failed to wait for initial partition map exchange

This looks like a network issue. Please check that connections can be established between any nodes in topology and nothing is blocked by firewall. Note that connectivity must be bidirectional, even for clients (i.e. server node can establish TCP connection with client node). Also note that both

Re: R: Memory Leak or my Error?

Devis, Suggestion would be not to create a new thread for each request :) It looks like you're using some kind of framework, so don't know how this should be done properly there, but generally thread creation is a heavy operation by itself, so it's always better to use thread pools.

Re: Web-Console query on Oracle database cache return empty resultset

Read-through doesn't work with SQL queries, only with key based access. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Web-Console-query-on-Oracle-database-cache-return-empty-resultset-tp13546p14285.html Sent from the Apache Ignite Users mailing list

IGNITE-4548 does not seem to be completely fixed

Hi Ignite Experts, I have tested the fix for IGNITE-4548 Say I have enum like this public enum SecurityType { All, Stock, Future, Option, Commodity, ETF, Bond, Unknown, Equity, REIT, StapledSecurity, CurrencyPair } Using this JDBC config

Re: Cache creation before making any operation the cache?

Hi, On user operations use Ignite.cache instead of Ignite.getOrCreateCache. it will throw an exception if cache doesn't exist. Or, you can get list of cache names by Ignite.cacheNames(). Evgenii -- View this message in context:

Re: NodeFilter for cache and GridDhtPartitionsExchangeFuture (Failed to wait for partition release future)

Here it is: logs_dumps.zip -- View this message in context:

How to create a dump of updated data in cache

Hi, I'm really new to ignite, so just bear with me here. I have integrated my Mysql db with the ignite by making use of the ignite web console and the ignite web agent. I am being able to perform sql update operations on the data i've loaded to my ignite caches. Now what i require is a way to

Re: Small value for IGNITE_ATOMIC_CACHE_DELETE_HISTORY_SIZE

Yes, such races during pre-loading are possible even if you configured 0 backups. On Fri, Jun 30, 2017 at 7:31 PM, charly wrote: > It helps a lot. Thanks for the detailed example. I have a last question. > Would it still be a potential issue to lower the queue size if we

Class not found exception for ScanQuery

Hi Igniters, My Ignite version is 2.0.0 I am trying to Query the Ignite cache through Apache Camel-Ignite component using ScanQuery option inside the OSGI plugin project. TcpDiscoveryMulticastIpFinder ipFinder = new TcpDiscoveryMulticastIpFinder();

Re: Class not found exception for ScanQuery

Hello, Austin. This stack trace looks very similar to bug - https://issues.apache.org/jira/browse/IGNITE-2190 Please see my comments in Jira ticket. I currently working on fixing this bug. 2017-07-03 17:55 GMT+03:00 austin solomon : > Hi Igniters, > > My Ignite

Re: NodeFilter for cache and GridDhtPartitionsExchangeFuture (Failed to wait for partition release future)

YourKits thinks: Frozen threads found (potential deadlock) It seems that the following threads have not changed their stack for more than 10 seconds. These threads are possibly (but not necessarily!) in a deadlock or hung. exchange-worker-#29%null% <--- Frozen for at least 14s

Re: Fetch column names in sql query results

There is no way to do this in 2.0. You'll have to wait for 2.1. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Fetch-column-names-in-sql-query-results-tp14089p14277.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: IGNITE-4548 does not seem to be completely fixed

Hi Gordon, Could you please send you pom project to debug it? Looks like it was changes on purpose by this ticket: https://issues.apache.org/jira/browse/IGNITE-4949 but anyway, I want to check it with debugger, I will appreciate if you send your test case. Thanks, Mikhail. On Mon, Jul 3, 2017

Re: Ignite Data Streamer Performance is not improving with increase in threads

Hi Andrey, Attached is the code we have used for bench marking. Is there any tuning that we can apply to get better performance out of ignite single instance further? Also we have attached logs taken from our tool where we varied datastreamer parallelism from 1 to 16(default). In this