Re: Failed to wait for initial partition map exchange

INFO 2017-06-13 20:36:22 [localhost-startStop-1] org.apache.ignite.internal.IgniteKernal%svip - [[OS: Linux 4.1.12-61.1.18.el7uek.x86_64 amd64]] INFO 2017-06-13 20:36:22 [localhost-startStop-1] org.apache.ignite.internal.IgniteKernal%svip - [[PID: 7608]] [20:36:22] VM information: Java(TM) SE

Re: Grid/Cluster unique UUID possible with IgniteUuid?

Muthu, Look at Ignite Uuid#randomUuid() method. I think it will provide needed guarantees for your case. On Mon, Jun 12, 2017 at 9:53 PM, Muthu wrote: > Thanks Nikolai..this is what i am doing...not sure if this is too > much..what do you think..the goal is to make

Re: Write behind using Grid Gain

Hi Raymond, I think your use case fits well into traditional Ignite model of write-through cache store with backing database. Why do you want to avoid a DB? Do you plan to store data on disk directly as a set of files? Pavel On Mon, Jun 12, 2017 at 2:14 AM, Raymond Wilson

Re: Ignite REST SERVICE

Hi, Explicit configuration is not required, connector starts up automatically and listens on port 8080. Which http code have you got when you accessing it by one of the methods from api? From example, curl http://:8080/ignite?cmd=version. Also, try access rest api directly from the server, for

Re: SQL Query against BigDecimal value field

Hi, We need a little bit more info. What is the expected and real values? Does JDBC, ODBC and API show the same value? Best Regards, Igor On Sat, Jun 10, 2017 at 1:19 AM, pingzing wrote: > Anyone with experience? A simple query against BigDecimal value field > doesn't >

Apache Ignite, Memory Class Storage, GPUs, and all that

Hello, Having to explain the choice of Ignite internally, I wonder what is the "official" position of Apache Ignite towards Storage Class Memory and using GPUs. On the SCM story, I guess it is just another way of allocating/freeing memory in a kind of off-heap mode but on disk. On the GPUs

Re: swift store as secondary file system

I got it! If you do it yourself doesn't shy to share your experience with community. ;) On Mon, Jun 12, 2017 at 7:23 PM, Antonio Si wrote: > Thanks Nikolai. I am wondering if anyone has done something similar. > > Thanks. > > Antonio. > > On Mon, Jun 12, 2017 at 3:30 AM,

Re: NoClassDefFoundError org/h2/server/Service

Hi, Please properly subscribe to the mailing list so that the community can receive email notifications for your messages. To subscribe, send empty email to user-subscr...@ignite.apache.org and follow simple instructions in the reply. This example works for me without problems. Did you change

Re: Automatic Persistence : Unable to bring up cache with web console generated models ("org.apache.ignite.IgniteCheckedException: Failed to register query type" exception is thrown)

Muthu, Please create separate threads on user for mentioned problems: code generation (if needed), spring transactions, JDBC. I'm lost in this "big" number of text lines. -- Alexey Kuznetsov

Re: ODBC driver issue

Hi, Try adding /usr/local/lib/ to LD_LIBRARY_PATH evn variable. Best Regards, Igor On Tue, Jun 13, 2017 at 4:54 PM, Riccardo Iacomini < riccardo.iacom...@rdslab.com> wrote: > Hello, > I am trying to access Ignite 2.0 using the ODBC driver. I've followed the > guide

Re: Write behind using Grid Gain

Raymond, Then Ignite Persistent Store is exactly for your use case. Please refer to this discussion on the dev list: http://apache-ignite-developers.2346864.n4.nabble.com/GridGain-Donates-Persistent-Distributed-Store-To-ASF-Apache-Ignite-td16788.html#a16838 Also it was covered a bit in that

Re: Grid/Cluster unique UUID possible with IgniteUuid?

Hi Nikolai, I looked at the code for this method earlier (reproduced below)...the UUID is generated once (via VM_ID) per cluster node JVM & the atomic long again is local to the cluster node JVM (unlike the *igniteAtomicSequence*). Do you think its still okay to use it...i thought we at least

RE: Write behind using Grid Gain

Hi Pavel, It’s a little complicated. The system is essentially a DB in its own right; actually it’s an IMDG a bit like Ignite, but developed 8 years ago to fulfill a need we had. Today, I am looking to modernize that system and rather than continuing to build and maintain all the core

RE: Write behind using Grid Gain

Denis, Ah! Looks very interesting. Thanks for the pointer J Raymond. *From:* Denis Magda [mailto:dma...@apache.org] *Sent:* Wednesday, June 14, 2017 9:41 AM *To:* user@ignite.apache.org *Subject:* Re: Write behind using Grid Gain Raymond, Then Ignite Persistent Store is exactly for

Re: Off-Heap On-Heap in Ignite-2.0.0

Denis, Thanks for clearing it out. That might be the reason for the memory difference. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Off-Heap-On-Heap-in-Ignite-2-0-0-tp13548p13683.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Exception when Ignite server starts up and also when a new node joins the cluster

I am getting the following exception when starting Ignite in server mode(2.0) and from then Ignite is stopping all the caches. Exception in thread "main" class org.apache.ignite.IgniteException: Attempted to release write lock while not holding it [lock=7eff50271580, state=0002 2639

Re: IGFS Question

Okay i start using file system api which ignite file system has. I start an ignite node and start loading data from it. Now i have to put data into normal ignite cache for using sql queries on it. Ignite node has been already started from the program in IGFS mode. How will i create a normal ignite

odd query plan with joins?

Hi, I'm attempting to run a query that does a join between 2 large tables (one with 6m rows, another with 80m rows). In the query plan I see a join "on 1=1" and separately i see filters for my join under the "where" clause. I'm not sure if this is standard output in the query plan or if it's doing

Re: IGFS Question

By starting another ignite node i mean an ignite node with different config. As seen in ignite data fabric example of stream words from file we have to use some event types also . On Wed, Jun 14, 2017 at 10:38 AM, Ishan Jain wrote: > Okay i start using file system api

Re: Off-Heap On-Heap in Ignite-2.0.0

Megha, The objects are stored in the deserialized form both in heap (AI 1.x) and off-heap (AI 2.0). The difference is that when an object is in Java heap we need to an create extra wrapper object around it so that it can be used by an application running on top of JVM. Plus there might be some

Re: Apache Ignite, Memory Class Storage, GPUs, and all that

Hello Steve, Starting with Apache Ignite 2.0 the project is no longer considered as an in-memory technology only. The new virtual memory architecture that sits at the core of the platforms allows considering Ignite as an memory-first (memory-optimized) computational platform that distributes

Re: Data Analysis and visualization

What is the size of the data? For me it looks more that orc or parquet would be enough. I do not see here specific in-memory requirements. > On 12. Jun 2017, at 09:59, Ishan Jain wrote: > > I need to just get the price of a stock which is stored in hdfs with >

Re: How to operate with cache<*Key, *> or cache<AffinityKey<...>,*>?

Hi, Valentine. Thanks for your response! It's a shame i overlooked DML. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/How-to-operate-with-cache-Key-or-cache-AffinityKey-tp13561p13642.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: Data Analysis and visualization

Size would be very large as stock prices would be streamed every hour On Tue, Jun 13, 2017 at 12:05 PM, Jörn Franke wrote: > What is the size of the data? > For me it looks more that orc or parquet would be enough. > > I do not see here specific in-memory requirements. >

Re: System Parameters to improve CPU utilization

Hi, We are performing parallel data loading in memory using multiple instances of ignite(from kafka to ignite) in single node. While caching CPU is not getting utilized above 70%. How can we improve this? Thanks -- View this message in context:

Re: Data Analysis and visualization

I need to basically have a sql query remote access from tools like tableau or zeppelin and have fast mapreduce funtions -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Data-Analysis-and-visualization-tp13614p13639.html Sent from the Apache Ignite Users mailing

Re: NoClassDefFoundError org/h2/server/Service

Hi, I subscribed to the mailing list now. Thank you. I did not change anything related to the project, was just trying to execute as-is. I wanted to run the IgniteNodeStartup and I get this error. I mentioned the h2 jar to let know that the specific version I was using is the latest as

Re: ODBC driver issue

Thank you for the reply Igor, the error just changed into: *pyodbc.Error: ('01000', "[01000] [unixODBC][Driver Manager]Can't open lib > 'Apache Ignite' : file not found (0) (SQLDriverConnect)")* The Ignite Driver seems to be installed. Here's my /etc/odbcinst.ini : [Apache Ignite] >