Re: Increase transaction throughput with nodes.

Per cache. — Denis > On Jun 8, 2016, at 7:42 AM, amitpa wrote: > > Danis, > > CacheConfiguration.setMaxConcurrentAsyncOperations :- Is it set per cache or > in Ignite-Config on Node startup? > > > > -- > View this message in context: >

Re: Increase transaction throughput with nodes.

Danis, CacheConfiguration.setMaxConcurrentAsyncOperations :- Is it set per cache or in Ignite-Config on Node startup? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Increase-transaction-throughput-with-nodes-tp5411p5510.html Sent from the Apache Ignite Users

Re: ignite cache get performance issue when Key, Value not exist

Hi Kevin, This happens because such information is not “cached” in the internals meaning that every time the database will be queried to see whether it has such a key or not. If you disable the database the performance should be good. In any case how critical is this for you? Is it some basic

Re: Ignite Startup Failures

In addition a long pause GC can lead to error. You can get GC log and analyze it [1]. If this does not help, then add GC log in this thread. [1]: https://apacheignite.readme.io/docs/jvm-and-system-tuning On Tue, Jun 7, 2016 at 6:35 PM, vdpyatkov wrote: > vdpyatkov wrote >

Re: Ignite Startup Failures

vdpyatkov wrote > Hello, > > Unfortunately I was not able to get access to logs files. > I think you need to check IGNITE_HOME environment variable. > > You can find information about in the article > https://apacheignite.readme.io/docs/getting-started in *Installation* > topic. > > If the

Re: Is it possible to disable TcpRestProtocol?

Hi Denis, Thank you for your response. After looking in to this a bit more I have discovered I can disable this entirely with the following: IgniteConfiguration cfg = new IgniteConfiguration(); cfg.setConnectorConfiguration(null); // disables the tcp rest

Re: Ignite for Spark on YARN Deployment

Hi Denis, Thank you very much for your good suggestions! If my Spark running on YARN and there are three master_hosts running, should I pick up one randomly? I will give a try to specify the master_host and master_port. Thank you! Mei On Tue, Jun 7, 2016 at 10:26 AM, Denis Magda

Re: Inserts stalled by write-behind process

Where do you see this property? WriteBehindTotalCriticalOverflowCount -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Inserts-stalled-by-write-behind-process-tp3390p5500.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: ignite in-memory sql query performance issue

Hi Kevin, Currently Ignite uses H2 as underlying database engine. And according to H2 documentation, group indexes are only used when all fields from the index participate in a query. For this reason it might necessary to have several indexes or index groups if multiple different queries are

Re: Ignite for Spark on YARN Deployment

Hi, I’m not an expert in this area however have you tried to specify a Spark master like the following documentation says? https://apacheignite-fs.readme.io/docs/testing-integration-with-spark-shell#working-with-spark-shell If you did try please share the full logs, someone from the community

Re: Error in ODBC connection

Hi Agneeswaran, Could you please provide your connection string? Or are you using one of the examples? According to the error, ODBC driver was not properly installed in your system. It is also possible, that unixODBC can not find all the dependencies of the driver library. Can you provide output

Re: Using Ignite within within networks without internet egress

Hi, Haithem Turki! If your yarn cluster running in network without internet, you can use IGNITE_PATH property. The property allows to use apache ignite build from hdfs. Also error message isn't clear, I've created ticket [1] for this issue. 1. https://issues.apache.org/jira/browse/IGNITE-3268

Re: Best Practices for number of caches.

bearrito wrote > Group, > > Are there best practices or recommendations on the number of caches one > should create? > > In particular I'm looking to create append-only log type functionality > with evictions. Suppose for instance I had many financial instruments and > I wanted to store the last

Error in ODBC connection

Hi Team, We are getting the following error message while Connecting to ODBC server.Could you please suggest us. Error [unixODBC][Driver Manager]Data source name not found, and no default driver specified We have followed all the procedure as mentioned in the site:

Re: Ignite : Slow Client

1. If any client is disconnected event queue is dropped ( except some internal discovery events ). 2. Which query? Event queue is per connection. 3. No. 4. No. You can read more about slow clients here [1] [1] https://apacheignite.readme.io/docs/clients-vs-servers#managing-slow-clients

Re: Ignite : Slow Client

Yes Alexie, I should have mentioned that (my bad). On Tuesday, June 7, 2016 5:17 AM, Alexei Scherbakov wrote: Hi, Do you mean Ignite's Event delivery described here [1] ? [1] https://apacheignite.readme.io/docs/events 2016-06-06 13:21 GMT+03:00 M Singh

Re: Ignite : Slow Client

Hi, Do you mean Ignite's Event delivery described here [1] ? [1] https://apacheignite.readme.io/docs/events 2016-06-06 13:21 GMT+03:00 M Singh : > Hi: > > I have a few questions about slow clients: > > 1. If a slow client is disconnected, what happens to it's event queue

Re: Ignite Startup Failures

Hello, Unfortunately I was not able to get access to logs files. I think you need to check IGNITE_HOME environment variable. You can find information about in the article https://apacheignite.readme.io/docs/getting-started in *Installation* topic. If the exception persists, please send log

Re: Ignite faster with startup order

Hi Already answered to you in gitter. You should profile the application to understand the source of slowdown. I doubt it's Inite related. 2016-06-06 16:08 GMT+03:00 amitpa : > Hi, > > I have an application which embeds a Apache Ignite instance in a TCP > server. > I

Re: CachePartialUpdateCheckedException:Failed to update keys (retry update if possible)

Hi, Please properly subscribe to the user list (this way we will not have to manually approve your emails). All you need to do is send an email to ì user-subscr...@ignite.apache.orgî and follow simple instructions in the reply. In regards to your question I would suggest you switching to

Re: Is it possible to disable TcpRestProtocol?

Hi Dave, The port is used to connect to a cluster using REST based protocol implementation. https://apacheignite.readme.io/docs/rest-api It’s used by Visor CMD utility https://apacheignite.readme.io/docs/command-line-interface If you don’t expect to use Visor or this feature in general you

Re: Increase transaction throughput with nodes.

Hi, Your understanding is correct. The overall throughput should grow if you scale horizontally. However in case of distributed transactions many factors can be a reason of why the performance doesn't grow significantly: - the same locks are held by multiple pessimistic transactions; -

Re: whether IgniteHadoopIgfsSecondaryFileSystem will cache HDFS filein IGFS?

Hi, What numbers do you get? What Ignite version are you on? In fact IGFS should give you performance boost but make sure that you’re using Ignite 1.6.0 that has many performance related optimizations in this area. — Denis > On Jun 3, 2016, at 9:56 AM, Jason <410353...@qq.com> wrote: > > It

Re: Poor performance select query with jdbc

Hi, Please properly subscribe to the user list (this way we will not have to manually approve your emails). All you need to do is send an email to ì user-subscr...@ignite.apache.orgî and follow simple instructions in the reply. In regards to your question try to increase

Re: Unable to load config from absolute path.

Hi, Please properly subscribe to the user list (this way we will not have to manually approve your emails). All you need to do is send an email to ì user-subscr...@ignite.apache.orgî and follow simple instructions in the reply. Please provide the full stack trace that should contain the cause of

Re: Simulating Graph Dependencies With Ignite

Hi, Amit. I think the object size is OK for performance. As for NPE, I think you should check if the entry exists in case you passed the key which is not contained in cache: if (mutableEntry.exists()) { mutableEntry.setValue(...) } Check the javadoc for igniteCache.invoke about

Re: cluster coming down after data before loading complete data

Hi, Please properly subscribe to the user list (this way we will not have to manually approve your emails). All you need to do is send an email to ì user-subscr...@ignite.apache.orgî and follow simple instructions in the reply. How big is you dataset? What is the reason why you store a HashMap

Re: Cluster Topology Failure Detection

Hi, Please properly subscribe to the user list (this way we will not have to manually approve your emails). All you need to do is send an email to ì user-subscr...@ignite.apache.orgî and follow simple instructions in the reply. In regards to your question, you can subscribe for

Re: Simulating Graph Dependencies With Ignite

I tuned the application by batching the cache updates and making the query use the index. Wasn't able to make affinity calls work. Alexei, can you please provide your inputs on the affinity code? -- View this message in context:

Re: cluster node attribute based authorization

Hi, Subscribe to EventType.EVT_NODE_FAILED EventType.EVT_NODE_LEFT events [1] [1] https://apacheignite.readme.io/docs/events 2016-06-06 20:18 GMT+03:00 Anand Kumar Sankaran : > All > > > > I implemented a ClusterNode.userAttributes() based authorization >

Re: Self Join Query As An Alternative To IN clause

Hi Because the H2 engine works this way. Look carefully into the documentation [1] [1] https://apacheignite.readme.io/docs/sql-queries#performance-and-usability-considerations 2016-06-07 7:37 GMT+03:00 pragmaticbigdata : > Great. The query worked now and it is 50% faster