Re: Slow Ignite Cache with multi-nodes

Hi Rick, It seems that you need to increase clients number to achieve better performance when you increase server nodes number. You can try to put data from different threads as well. Also, you can set CacheConfiguration.setWriteSynchronizationMode(CacheWriteSynchronizationMode.PRIMARY_SYNC). The

答复: Hi is ignite have a plan for materialized view

Hi Thanks for u answer. Actually, I just wanna use ignite as streaming database. So if it have materialized view. May helpful. 发送自 Windows 10 版邮件应用 发件人: Andrey Mashenkov 发送时间: Friday, March 30, 2018 10:19:43 P

Regarding Ignite Slack Channel

Hi all, Can someone please add me to the Ignite slack channel? Thanks Rick -- 本信件可能包含工研院機密資訊，非指定之收件者，請勿使用或揭露本信件內容，並請銷毀此信件。 This email may contain confidential information. Please do not use or disclose it in any way and delete it if you are not the intended recipient.

Slow Ignite Cache with multi-nodes

Dear all, Could someone help me to figure out this problem at https://issues.apache.org/jira/browse/IGNITE-8117 Thanks Rick -- 本信件可能包含工研院機密資訊，非指定之收件者，請勿使用或揭露本信件內容，並請銷毀此信件。 This email may contain confidential information. Please do not use or disclose it in any way and delete it if you are n

Re: how costly creat a temp cache and drop it?

Hi, Denis,Thank you very much, type so many words. It is  very valuable for me. The reason of previous design is that I want to use SQL. Though,most times, we just do simple aggregations,SQL give us more capabilities.  The requirements are part of our whole solution, I think you are

Re: Cache access based on the user previleges

Vishwas, I guess that it's a matter of time when the role-based access gets added to Ignite. Version 2.5 already goes with username/password authentication: https://issues.apache.org/jira/browse/IGNITE-7436 Hope that much more is to come. -- Denis On Fri, Apr 6, 2018 at 6:45 AM, Denis Mekhanik

Re: POC with DataStreamer (Kafka or Ignite - security question)

Built-in encryption facilities are being discussed on the dev list. Check it up: http://apache-ignite-developers.2346864.n4.nabble.com/IEP-18-Transparent-Data-Encryption-td29001.html As for now, use operating system level encryption mechanics for your files. -- Denis -- Denis On Fri, Apr 6, 2018

Re: Query on Ignite web console

Hi Vishwas, Ignite Web Console is open sourced: https://apacheignite-tools.readme.io/docs At the same time, there is a version built out by GridGain that goes with extra features and hosted only (can be used free of charge): https://console.gridgain.com -- Denis On Mon, Apr 9, 2018 at 7:02 AM,

Re: Is backup copy always stored on different host - is ithost-awarereplication

Hi Naveen, Taken from CREATE TABLE documentation - see Ignite.addCacheConfiguration parameter - TEMPLATE= - case-sensitive name of a cache template registered in Ignite to use as a configuration for the distributed cache that is deployed by the CREATE TABLE command. A template is an

Re: Readonly nodes

Hi, Yes, you can tap into NodeFilter interface applying it for your CacheConfiguration in a way similar to ServiceConfiguration as shown here: https://apacheignite.readme.io/docs/service-grid#section-node-filter-based-deployment -- Denis On Mon, Apr 9, 2018 at 4:23 PM, Alew wrote: > Hi! > I h

Readonly nodes

Hi!  I have a relicated cache. Is there a way to forbid insert and update data in the cache for some nodes in a cluster? Regards

Re: Transaction progress, affinity, locks

Hi Pavel Makes sense Thank you Ariel -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Affinity Run Return value

NVM Got it -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Affinity Run Return value

Hi, I understand about Affinity Collocation and Affinity run. I have a use case where I need to access multiple entries in the cache related to a certain ID. Affinity Collocation works perfectly. However my use case if to also return certain value based on all the entries i access. How can I retur

Re: Ignite cache get operation not working, client application stucks at the initializaiton

>class org.apache.ignite.IgniteCheckedException: Log4j configuration path was not found: log4j.xml As you see, an application can't find your configuration file log4j.xml. You need to configure it properly. First of all, I want to say that you're moving something definitely wrong between nodes: >C

Re: Transaction progress, affinity, locks

Hi Arial, >> But there are also non-transactional reads from one of the caches. Any operation on a transaction cache executes within a transaction. If the transaction isn't declared, it is created implicitly with default concurrency and isolation modes. >> There will be only 2PC commit for trans

RE: Is backup copy always stored on different host - is ithost-awarereplication

Hi Stan I wanted to create a cache template with the below

Re: Ignite visor command issue on K8s cluster

Hi. I just shared my experience ), in my opinion it's the most convenient way, and if somebody decides to update documentation, it would be at least one of the ways to run tools in k8s. ​ Arseny Kovalchuk Senior Software Engineer at Synesis skype: arseny.kovalchuk mobile: +375 (29) 666-16-16 ​Li

Re: Ignite visor command issue on K8s cluster

Hi Arseny, As you mentioned, I created a new pod which basically runs indefinitely. Now I logged into that container and was able to connect using ignite visor without any issues. If this is the recommended way, I think it is better to document in the Kubernetes ignite guide. Regards, Vishwas

Re: Ignite visor command issue on K8s cluster

I've had problems with the visor cache command failing when a client is connected, which was related to TCP port firewalls. Visor was trying to make a connection that was blocked. I don't remember whether top failed. On Mon, Apr 9, 2018 at 7:10 AM, vbm wrote: > Hi Dave > > In the ignite pod

Query on Ignite web console

Hi, I wanted to use Ignite web console for my POC. Can you please let me know, if it is licensed or open-sourced ? Regards, Vishwas -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: 如何用jdbc 关联查询跨节点Cache数据

Hi, Unfortunately, it's not clear from this description what kind of problems you have, could you please share a small reproducer as maven project? Thanks, Evgenii 2018-04-09 8:14 GMT+03:00 hulitao198758 : > Hello, ask, apache ignite using JDBC thin client connection, use the select > the from

Re: Cache loading from the web console

About the loadcache () method, I know it's interesting to know how to download data besides it -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Ignite visor command issue on K8s cluster

Hi ​Arseny, I missed you comment. I will try it out and get back. Thanks for the information. Regards, Vishwas -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Ignite visor command issue on K8s cluster

Hi Dave In the ignite pod logs of the server, I see that the cluster is formed. I see the below trace when I run the command, [02:53:18] Topology snapshot [ver=4, servers=4, clients=0, CPUs=8, heap=6.0GB] This indicates the cluster of 4 nodes has formed. When I login to the container and try to

Re: how costly creat a temp cache and drop it?

Hi! These requirements don't sound realistic. You can do an experiment and try inserting your data into a Java TreeMap, for example, which is many times faster than a distributed cache (but much less functional, obviously). It takes almost a second just to insert a few millions of short strings in

Strange node fail

I'm running two cluster on the same 8 nodes, one cluster with native persistence enabled and the other one is memory only. The only difference between these two cluster is that the cluster with native persistence enabled has larger JVM heap than the other one. The two nodes in the cluster with nati

Strange node fail

I'm running two cluster on the same 8 nodes, one cluster with native persistence enabled and the other one is memory only. The only difference between these two cluster is that the cluster with native persistence enabled has larger JVM heap than the other one. The two nodes in the cluster with nati

Re: Ignite visor command issue on K8s cluster

Hi. In k8s you have to use only one port instead of port range for discovery and communication between instances [1], because you cannot specify a port range that POD exposes. Moreover, you have to be sure that instances in the cluster see each other, so you have to use special discovery SPI. By d

Re: Using Apache Ignite with Zookeeper

You have to open discovery and communication ports at least. By default they are 47500 and 47100. If you want to use JDBC, REST or JMX, then you should open the corresponding ports as well. Denis сб, 7 апр. 2018 г. в 10:08, monal sinha : > Thanks, so I don't need to open any port on my ignite c

Re: TcpDiscoverSpi error connection refused

Thanks Denis. Sent from my iPhone > On 9 Apr 2018, at 18:22, Denis Mekhanikov wrote: > > There are the following lines in the TcpDiscoverySpi implementation: > > if (log.isDebugEnabled()) > log.error("Exception on direct send: " + e.getMessage(), e); > > So, these exceptions are shown onl

Re: TcpDiscoverSpi error connection refused

There are the following lines in the TcpDiscoverySpi implementation: if (log.isDebugEnabled()) log.error("Exception on direct send: " + e.getMessage(), e); So, these exceptions are shown only when debug logging is enabled, and they are logged as errors. Neeraj, you probably just didn't enabl

Re: Ignite cache get operation not working, client application stucks at the initializaiton

Hi, *You need to find field "ht" in your objects* I am not quite sure what is field "ht" exactly means and how to find that in my objects? I directly search for the exact keyword "ht" in my objects but did not find anything. *It's needed to have the same files for both client and server nodes. *