3D XPoint outperforms SSDs - verified on Apache Ignite

Igniters, Some of our community members benchmarked regular SSDs vs Intel Optan (3d XPoint). Here is a report: http://dmagda.blogspot.com/2017/10/3d-xpoint-outperforms-ssds-verified-on.html Please help to spread a word: https://twitter.com/denismagda/status/922587654033518593 — Denis

Re: intermittent exceptions while starting ignite clsuter

Hi, Let's start with communication spi first. Please configure communication ports in that way and check that discovery ports and communication are not intersected. Thanks! -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Cannot find schema for object with compact footer

Slava, what is the consequence/price of disabling compact footer? Although it looks like it only happens for the integration tests, and never (at least we have not observed this problem) in production. This is the test (we use Spock): class SessionsCacheITSpec extends IgniteCacheITSpec {

Re: intermittent exceptions while starting ignite clsuter

for both discovery as well as communication spi you mean ? On Mon, Oct 23, 2017 at 11:26 PM, slava.koptilin wrote: > Hi Ranjit, > > It seems that all ports in the range you provided are already bound. > Perhaps, your machine doesn't release ports fast enough. > Please

Re: map types in Cassandra

Hi, It's hard to say for sure what is the problem without the logs. But obviously, it's a configuration issue. Please take a look at the corresponding documentation https://apacheignite-mix.readme.io/docs/ignite-with-apache-cassandra

Re: Grid freezing

IgnitePortionDequeuer.java top.visor Hi Evgenii, See the attached top command and java file.. -- Sent from:

Re: How do you fix affinity key backups in cache configuration?

Hello, It looks like you trying to start node which has an inconsistent configuration for atomic types. Please check that all nodes in the cluster (clients and servers) have the identical configuration [1]. something like the following: [1]

Re: intermittent exceptions while starting ignite clsuter

Hi Ranjit, It seems that all ports in the range you provided are already bound. Perhaps, your machine doesn't release ports fast enough. Please try to increase the port range up to 100. Thanks! -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Ignite Web Session Clustering

Hello! First, I'm sorry for my late reply. I didn't close my web browser between those tests. But as you talked about cookies, I looked at the cookies on chrome developer tools and for some unknow reason I had a cookie for '/' and '/Ignite-WebApp'. I cleaned those cookies and everything works

Re: Ignite/Cassandra failing to use supplied value for where clause

Here's the C* setup: -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Ignite/Cassandra failing to use supplied value for where clause

I've got to be missing something simple here, but I'm having trouble with Ignite calling C* with the POJO key that I'm supplying it when it tries to "cache.get". Whenever I try to supply the "cache.get" method with my POJO key, it complains that it's null when it tries to execute the CQL. I've

intermittent exceptions while starting ignite clsuter

Hi Team, I am geting the attached exception once in a while while starting the ignite cluster. Even though no one is running ignite i get some times address already in use. I have specified a ramnge of 10 for both the discovery and communication ports. Any help what i am missing here. my code

Re: How to query to local partition cache data

Hi, setLocal - if true then query will be executed on local data node only. setCollocated - if true then rows are collocated on GROUP BY field and Ignite can evaluate aggregate functions on Map step. setDistributedJoins - if true then Ignite will try to join rows with rows on other nodes. Would

How do you fix affinity key backups in cache configuration?

Was just hit with this error causing my whole ignite cluster to fail to start: org.apache.ignite.IgniteCheckedException: Affinity key backups mismatch (fix affinity key backups in cache configuration or set -DIGNITE_SKIP_CONFIGURATION_CONSISTENCY_CHECK=true system property)

Re: Ignite in embeded mode in Spark running in dynamic mode

Hi Val, Could you please confirm. Thanks, Ranjit On Thu, Oct 19, 2017 at 6:24 PM, Ranjit Sahu wrote: > Hi Val, > > Do you mean use yarn deployment ? > > Thanks, > Ranjit > > On Wed, Oct 18, 2017 at 10:54 PM, vkulichenko < > valentin.kuliche...@gmail.com> wrote: > >> Hi

Re: Client Near Cache Configuration Lost after Cluster Node Removed

Hello, Could you say how you determine that client node loads data from remote node bypasses near cache? I'm not able reproduce this behaviour locally, could you share a simple maven project that reproduces this behaviour? On Tue, Oct 17, 2017 at 12:54 AM, torjt wrote:

Re: Continuous update Data Grid Cache

The use case is similar to OP. We have a large table that we import/load from a dataset. This dataset is generated periodically such that we need to re-load this whole dataset to Ignite. If we re-load the new dataset against the same Ignite table, the users will be impacted during that window.

Re: ComputeGrid API in C++

That was it! Thank you so much, Igor. I just had to add a call to GetBinding() and RegisterComputeFunc() in platforms/cpp/ignite/src/ignite.cpp main() method. I'm not used to modifying an implementation in order to run an example ;) Although, this means that every time I change the closure, I

Re: Node and cluster maintenance best practice

Thank you, Denis. How about best practice for bringing down a node for maintenance (e.g. applying OS patch, hardware maintenance, etc)? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Grid freezing

Hi! How many nodes do you have? How many CPUs? Could you provide a code of com.company.node.ignite.IgnitePortionDequeuer or at least a dequeuePortions method? Evgenii 2017-10-20 0:24 GMT+03:00 smurphy : > threaddump.tdump >

Re: Cannot find schema for object with compact footer

Hi, It looks like there is an issue with the binary serialization of objects. I would suggest the following workaround: Could you please share the code of your test? It will be very useful in order to understand the root cause of the issue. By the way, could you try to

Re: Ignite 2.3 - replicated cache lost data after restart cluster nodes with persistence enabled

Hi, I tried to write the same code that will execute the described scenario. The results are as follows: If I do not give enough time to completely rebalance partitions, then the newly launched node will not have enough data to count(*). If I do not wait for enough time to allow to distribute

Re: Hammering Cassandra with Ignite seems to get ignite into an infinite loop

Hi Tobias, As far as I know, Cassandra module was tested with Cassandra Database 3.3 & Cassandra Driver 3.0.0. Perhaps, this issue related to Cassandra v3.11. Could you please check that the issue is reproducible with Cassandra Database 3.3 & Cassandra Driver 3.0.0? Thanks! -- Sent from:

Re: ComputeGrid API in C++

Have you registered the same function for all three nodes, or only for the one you are calling RunAsync() on? You should register it on every node, as this is a local operation. Best Regards, Igor On Fri, Oct 20, 2017 at 7:06 PM, asingh wrote: > That makes sense. > > Now

need suggestions for Ignite cluster isolation

Hi Ignite Community, We implemented a generic Ignite cache component in our group, the purpose is that we want everyone in our group can integrate Ignite caches in their applications by simply adding some configurations. But we find that Ignite cluster isolation mechanism is not very friendly