Re: link cache to object class?

I'm not sure I understand you properly. However in any case you can use a code block like the one below to get an instance of a cache related to a specific class String cacheName = object.getClass().getSimpleName().toLowerCase(); IgniteCache cache = ignite.cache(cacheName); The caches have to

Re: Pecuilar loopback address on Mac seems to break cluster of linux and mac....

Hi Kristian, Thanks for reporting on this. I've opened in issue in Apache Ignite JIRA https://issues.apache.org/jira/browse/IGNITE-3011 As a workaround as you already noted you can set -Djava.net.preferIPv4Stack=true to JVM upon startup. Other solution that may work in your case is to set a

Re: multiple value key

Yes, what IDE generates should be fine. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/multiple-value-key-tp4138p4209.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: multiple value key

You can use loadCache method to load any set of data from the DB. It takes optional list of arguments that you can use to parametrize the loading process (e.g., use them to provide time bounds and query the DB based on these bounds). You can load based on any criteria, there are no limitation and

Re: Database transaction updating more than 1 table from CacheStore

Hi Binti, Can you please properly subscribe to the mailing list so that the community can receive email notifications? Here is the instruction: http://apache-ignite-users.70518.x6.nabble.com/mailing_list/MailingListOptions.jtp?forum=1 bintisepaha wrote > We have a use case where multiple

Re: UPDATE sql query in ignite

No, I know that. I want to know if we can use UPDATE sql query with ignite or not? Because, I want to do something like this: I have a table each in 2 different cache, I want to update some column entry in one table as well as cache by performing cross-cache sqlqueryfield join. How do I do that?

Re: Ignite Services and Data Collocation

Thanks for your quick response Val! I'll test throughly and update here. --Kamal On Thu, Apr 14, 2016 at 11:57 PM, vkulichenko wrote: > Kamal, > > I'm not sure I understood what you're trying to achieve. When you use cache > API, all affinity mappings are done

Re: Ignite Services and Data Collocation

Kamal, I'm not sure I understood what you're trying to achieve. When you use cache API, all affinity mappings are done automatically, so you don't need to worry about this. In your particular case, the client is not aware of affinity and essentially sends a request to a random node, so the cache

Re: How to configure user data type for sql queries?

Kamal, Generally, binary format is recommended for all use cases. OptimizedMarshaller implements legacy serialization format, it's also compact and efficient, but requires to have classes on all nodes and do not support dynamic schema changes. If there are any limitations in binary format, most

Re: Ignite Data Grid with write through mode to HDFS with layer of IGFS

Hi Vladimir,Not really, we do not want to store historical data in cache or may be cache it for few hours and then evict it.But if recent data is missing in cache then yes we want to cache it.So it would require some custom caching logic to decide which data to cache.So seems like storing

Re: re: querying, sql performance of apache ignite

1. Yes, this is possible. 2. In a key-value storage, each entry has to have unique key. Entries with the equal keys will overwrite each other. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/querying-sql-performance-of-apache-ignite-tp4135p4188.html Sent

Re: Off-heap memory usage questions

Hi Shaomin, 1. Yes, this is a per node setting. So if there are two nodes on one box, it's possible that 20G will be allocated on this box. You should make sure that this limit correlates with the amount of physical memory you have. 2. In 1.5. IgniteCache.metrics() return values for local node

Re: Passing argument in sql query under where clause giving error

No, SQL is read-only now. Support for UPDATE and INSERT statements is on the roadmap, though. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Passing-argument-in-sql-query-under-where-clause-giving-error-tp4164p4184.html Sent from the Apache Ignite Users

Ignite Services and Data Collocation

Hi all, I've a cluster of 2 ignite server nodes + 1 client node (non-ignite). I've collocated the data resides in ignite cache based on affinity key. e.g. Server 1 - contains all the data related to the affinity key (A, C, E) Server 2 - contains all the data related to the affinity key (B,

Re: How to configure user data type for sql queries?

Val, Can you explain with use-case when to use Binary, Optimized, GridOptimized and JDK Marshallers ? --Kamal On Tue, Apr 5, 2016 at 3:41 AM, edwardkblk wrote: > Yes, it works with OptimizedMarshaller. Thank you. > > > > -- > View this message in context: >

Re: Passing argument in sql query under where clause giving error

Thanks it works now! -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Passing-argument-in-sql-query-under-where-clause-giving-error-tp4164p4176.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: Ignite Data Grid with write through mode to HDFS with layer of IGFS

Could you tell more about it ? How to do it ? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Ignite-Data-Grid-with-write-through-mode-to-HDFS-with-layer-of-IGFS-tp4122p4171.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: spark and ignite - possibilities

Could you tell how to do it ? Thriftserver may read data from filesystem (for example parquets files) -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/spark-and-ignite-possibilities-tp4055p4170.html Sent from the Apache Ignite Users mailing list archive at

Re: re: querying, sql performance of apache ignite

Try to reply to my: 1. When my key is timestamp. Ii it possible to load to cache memory all rows from year 2000 to year 2012 ? 2. When my key is timestamp and id (Integer). Is it possible to load load to cache memory all rows from year 2000 to year 2012 ? Note, that I don't set value of key id

Re: spark and ignite - possibilities

IGFS is a Hadoop-compatible file-system. If ThriftServer doesn't have strong dependencies on some HDFS-specific features, then yes - it could be used instead of HDFS. Could you please provide more detailed explanation of your use case with ThriftServer? On Wed, Apr 13, 2016 at 3:17 PM, tomk

Re: Ignite Data Grid with write through mode to HDFS with layer of IGFS

Hi Vij, Storing hot recent data in cache, and historical data in persistent store sounds like a perfectly reasonable idea. If you decide to store historical data in HDFS, then you should be able to construct HDFS path from the key because store interface accepts keys to store/load data. If this

Passing argument in sql query under where clause giving error

Hi, I'm trying to execute the cross-cache sql fields query with join and it executes fine as long as I don't do setArgs and pass an argument, when I need to pass an argument with the where clause, then it gives error: Failed to execute local query: GridQueryRequest [reqId=1, pageSize=1024,

Re: Ignite Data Grid with write through mode to HDFS with layer of IGFS

Thanks Vladimir !! The drawback with using HDFS as persistent store behind Ignite cache is how we will take care of appending single key value pair to HDFS file.Ideally we should use some NoSQL store or RDBMS as persistent back up behind Ignite cache and then run some scheduled batch to

Re: do you support json based cache?

Hi, Ravi! Not yet, but we have an issue for that https://issues.apache.org/jira/browse/IGNITE-962 You can track it JIRA. On Thu, Apr 14, 2016 at 6:20 PM, Ravi Puri wrote: > I want to know do you support json based data to be cached and > implemnented? > > > > -- >

do you support json based cache?

I want to know do you support json based data to be cached and implemnented? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/do-you-support-json-based-cache-tp4160.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Pecuilar loopback address on Mac seems to break cluster of linux and mac....

I was seeing quite substantial instabilities in my newly configured 1.5.0 cluster, where messages like this would pop up, resulting in the termination of the node.: java.net.UnknownHostException: no such interface lo at java.net.Inet6Address.initstr(Inet6Address.java:487) ~[na:1.8.0_60] at

re: problem of using object as key in cache configurations

You are right Val, I did not read all the examples. Hopefully problem solved. Cheers, Kevin -邮件原件- 发件人: vkulichenko [mailto:valentin.kuliche...@gmail.com] 发送时间: 2016年4月14日 14:34 收件人: user@ignite.apache.org 主题: Re: problem of using object as key in cache configurations We already have

Re: problem of using object as key in cache configurations

We already have such examples. For example, CacheClientBinaryPutGetExample. But I agree with Andrey that this message is very confusing. I will fix it shortly. -Val -- View this message in context:

Re: Ignite Schema Import Utility - Mismatch when loading data between Date and Timestamp

Thank you, planning a test session next week! -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Ignite-Schema-Import-Utility-Mismatch-when-loading-data-between-Date-and-Timestamp-tp3790p4152.html Sent from the Apache Ignite Users mailing list archive at