Re: Stupide question about Queue ?

At this point queues cannot be persisted yet. The ability to store any data structure or any cache to disk is currently being designed. I believe that it will become part of Ignite release by the end of March. As far as transaction logic, I would like other community members to chime in. How

Re: Pagination to fetch complete Cache data

Hi, Query results are already paginated by default. Page size is 1024 elements by default and can be changed via Query.setPageSize() method. How many entries in cache do you have? Iteration through the large data set is not going to be fast anyway. SQL should be used for indexed search, and they

Re: Huge heap size for ignite cache when storing 20 million objects of small size

Most likely memory is consumed by indexes. How many of them do you have? -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Huge-heap-size-for-ignite-cache-when-storing-20-million-objects-of-small-size-tp3049p3072.html Sent from the Apache Ignite Users

Pagination to fetch complete data

Can we use pagination while fetching the complete cache data.. I am using below method for fetching complete Cache data, but it is taking too much time : ScanQuery scanQuery = new ScanQuery() QueryCursor>

Re: changed cache configuration and restarted server nodes. Getting exception.

Hi Val At the time of this issue i checked topology through visor and all 3 client and 2 server nodes were there. There were no items in any cache. I could see caches created on all 5 nodes (near cache on 3 clients and replicated cache on 2 servers). I also tried cleaning a cache through visor

Re: Can Queues be Transacted?

I don’t think transactions on queues are supported yet, however, I am not sure why not. Seems to be for some legacy reasons. I think it should be a fairly easy feature to add. Can someone from the community comment please? On Wed, Feb 17, 2016 at 4:04 PM, Stolidedog wrote: >

Can Queues be Transacted?

>From what I'm able to get from the documentation, Transactions only apply to caches? Is it possible to use transactions in queues? Basically I want to have one application offer items on a queue. Another application take them off the queue and process them, but if it crashes, I want another

Re: IGFS: Writing to a nonexistent file: "Failed to append to the file due to secondary file system exception"

I see that this is a known issue: https://issues.apache.org/jira/browse/IGNITE-1631 and is planned to be resolved in 1.6 What is the workaround? Should I choose not to use DUAL_SYNC? If I create the file using IgniteFileSystem.create() would that sidestep this problem? Thanks, Rk x77309

Re: changed cache configuration and restarted server nodes. Getting exception.

Hi Vinay, CachePartialUpdateException is thrown by an update operation (put, putAll, remove, removeAll, ...) if updates for one or more keys involved in this operation failed. This exception has failedKeys() method that tells you which keys failed so that you can retry only them, no need to retry

IGFS: Writing to a nonexistent file will not create the file?

I am using Ignite 1.5.0.final on RHEL6 over JRE8. I have an initialized IGFS filesystem with a seconday backup store as the local filesystem and have create a path (directory) *a/b/c/d*. I am trying to write content to a (non-existent) file file as follows: *IgniteFileSystem fs = ...;

changed cache configuration and restarted server nodes. Getting exception.

Hi, I faced an issue today and couldn't figure out whats wrong hence though of asking on this forum. I added expiration policy to 2 cacheConfigurations, stopped all cache server nodes and then started one by one. My client nodes had near caches for the these caches and i am not sure if this

Re: ExpiryPolicy based on cache element

Hi Christian, You can broadcast a closure which will use IgniteCache.localEntries() method to iterate through the local data and remove all required data. This way you will minimize the network utilization. Will this work for you? -Val -- View this message in context:

Re: Huge heap size for ignite cache when storing 20 million objects of small size

Hi Vladimir, We are using 2 server nodes of 5 GB each. Also keeping backup count 1. We used binarylizable and raw mode which shrinked size but SQL queries are not running on raw mode. Is there any way we can run SQL queries with raw mode or we could use any external serializer with which SQL

Re: Huge heap size for ignite cache when storing 20 million objects of small size

Hi vidhu, If your object have 101 int field, each instance serialized with BinaryMarshaller (the default one) will be an array of 731 byte. This means 1.4GB of heap for 2M objects. How many nodes are there in your application? Do you have backups? It possible pleas share your configuration and

Re: Distributed queue problem with peerClassLoading enabled

Denis, Please see below for answers. Cheers, -Mateusz On Tue, Feb 16, 2016 at 10:18 PM, Denis Magda wrote: > Hi Mateusz, > > I've revisited the whole discussion from the beginning and should say that > the solution based on the distributed queue won't work for you even if

Re: Huge heap size for ignite cache when storing 20 million objects of small size

Yes we are not facing any issues related to gc and we can run SQL queries as well. I tried performing gc through visualvm but size didn't reduced. We need to load lot of data in our ignite cluster(approx 112 million objects in cluster). If we go by current scenario we will need lot of ram and