Re: Running sql query on partitioned cache

Hi Ilya, 1. We cant share the running exe as its for ARM plus it requires some specific kernel image to run. If i put it in simple words if i use partitioned mode and backup=1 and want to run sql query on the existing cache, do we need to do something w.r.t colocation(as keys are distributed

Running sql query on partitioned cache

Hi Team, We are running sql query on our cache(which is configured in "Partitioned" mode with backup =1) We have two nodes connected over network to each other. Our application is C++ based and running on ARM environment(linux) We are facing 2 issues now- 1. when we are running below query on our

Re: Buffer Overflow on ARM with persistency enabled

Hi , We have 2 GB RAM. we unfortunately could not attached debugger, so we don't have stack trace info as of now. Also about RAM, we tried running our application on AMD linux VM with same RAM(2GB) but there we dont see this behavior and application runs fine. regards, Rakshita Chaudhary --

Buffer Overflow on ARM with persistency enabled

Hi Team, We are using ignite on our C++ application over 32-bit ARM linux machine. Our application is closing abruptly after certain number of entries in Database(4400 entries) and application is being terminated with "Buffer Overflow" error. There is no other information in ignite logs or system

Re: Abrupt stop of application on using sql

hello Ilya, As i mentioned it is an abrupt closure of application. So we dont have the exit code. There is one information that i have which might be useful for you. We noticed that number of open file descriptor goes beyond 1024(max range of open file range of the system). When we disable the

Re: Abrupt stop of application on using sql

Hi Team, Can you please respond to my query above? regards, Rakshita Chaudhary -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Abrupt stop of application on using sql

Hi Ilya, How is decreasing maxSize of data region related to "Buffer Overflow" problem? I mean we dont get any Out of memory log in DeMsg logs and also "top" command shows enough available RAM. We tried decreasing maxSize to 50mb now but the problem still persists. Can this also be related to

Re: Abrupt stop of application on using sql

Hi Ilya, We only have one node. Attached is our DataBaseConfig.xml file for your reference DataBaseConfig.xml -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Abrupt stop of application on using sql

Hi Ilya, we could find out the problem of the application stop. We see "Buffer Overflow" error when application stops. We commented out mCache.Put() in our code(basically not calling Put API to write data to DB) and the restart did not happen. Also this restart happens after a certain number of

Re: Abrupt stop of application on using sql

Hi Team, Do you have any update on this issue? regards, Rakshita chaudhary -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Abrupt stop of application on using sql

Hi Ilya, No hs_err logs are being generated. No information on terminal as well, its just a stop of application. Regards, Rakshita chaudhary -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Abrupt stop of application on using sql

Hi Team, We are using sql queries and sql feature of C++ for our existing cache data on our application. The code runs perfectly fine on AMD linux version but on ARM machine, it abruptly stops the application , after few entries in the DB. If we try to again start the application, it again stops

Re: Re[4]: Run sql query on key-value cache

Hi team, I believe the example you mentioned above is using C++ - https://github.com/apache/ignite/blob/f37ec9eece4db627f2d5190e589f0522e445a251/modules/platforms/cpp/examples/query-example/src/query_example.cpp is there any performance or memory benefit is we use odbc rather than C++ API? We

Re: Re[2]: Run sql query on key-value cache

Hi Team, Thanks for the response. If we create schema(table) with indexes using existing cache , will this schema be created in memory? in our existing xml config , we are using persistence for ignite node, will apache use same persistence storage or create schema in-memory(RAM)? Is there a way

Re: Run sql query on key-value cache

How can we create indexes on our existing cache. As far as i could see on your portal no API support is available for C++ for creating indexes. does Query Entity automatically takes care of creating indexes? or we need to explicitly create indexes on our cache? if we need to explicitly create ,

Run sql query on key-value cache

Hi Team, We are using apache-ignite node for our C++ application. For one of the scenarios we need to get the result based on value of the the columns(which is not key field). If we do a getAll() on DB node then we have to linearly search the whole Database which is taking too much time in case

Re: RAM required for apache-ignite (if persistence is enabled)

can we enable this option via xml? is there a C++ API to enable/disable it? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: RAM required for apache-ignite (if persistence is enabled)

Thanks for the response. One more question- if we enable "Enabling Direct I/O", is there any performance implication or side effect? will it save some RAM for us? considering it will direct read/write to disk? Also can we enable it using xml option? regards, Rakshita Chaudhary -- Sent from:

RAM required for apache-ignite (if persistence is enabled)

Hi, We are using apache-ignite on embedded environment where we have RAM limitation. We are using persistence feature and using hard disk for it. but as we insert keys in our db we see free RAM decreasing. if we are using persistence still some data goes to RAM? Apart from what we configure for

Re: Application closing after java.net.SocketTimeoutException

we increased the "failureDetectionTimeout" to 4 minutes in our xml , still we see this issue. When are you planning to fix this issue? Also is there any work around? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: graceful shutdown for C++ applications

These are the full set of logs, if it helps- [10:10:56,860][WARNING][main][G] Ignite work directory is not provided, automatically resolved to: /home/dsudev/ignite-master/work [10:10:56,873][WARNING][main][G] Consistent ID is not set, it is recommended to set consistent ID for production clusters

Re: graceful shutdown for C++ applications

I am also getting below error on my ignite logs- [20:00:50,515][SEVERE][db-checkpoint-thread-#54][] Critical system error detected. Will be handled accordingly to configured handler [hnd=StopNodeOrHaltFailureHandler [tryStop=false, timeout=0, super=AbstractFailureHandler

Re: graceful shutdown for C++ applications

can SetActive() cause the crash? is this way okay to terminate the process by kill or there is some better way? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

graceful shutdown for C++ applications

Hi Team, We are using apache-ignite for our applications running on 2 machines and connected over network. We are facing some issue where if kill is performed on running application, it somehow corrupts the node and then node never comes up and keep on rebooting. Is there a way to handle this

Application closing after java.net.SocketTimeoutException

Hi Team, We are using ignite for persistent data between two nodes running on separate machines. sometimes our application stops with below error logs and exception- [01:18:39,477][SEVERE][tcp-disco-srvr-[:47500]-#3][TcpDiscoverySpi] Failed to accept TCP connection.

Failed to send message to remote node error

Hi Teams, I am using apache-ignite 2.8.0 version for our C++ applications. We are using "TcpDiscoveryVmIpFinder" for connecting our 2 ignite nodes, running on 2 separate machines. But while running the ignite node are getting below error on one of the nodes and application and node is stopping-

Re: Issue with BaselineTopology Branching History

If by any chance, someone messes up this sequence, sometimes ignite is throwing error which is great on which we can take some action but sometimes its getting stuck and making our process also stuck. Is there a way that the node(new node) does not get stuck and throws some error or exception

Re: BaselineTopology branching error

What if i delete "metastorage" folder created on older node? Will it solve the problem? Will i loose all Database entries(key,value) if i delete this folder? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: BaselineTopology branching error

how to delete PDS data ? by deleting PDS data , are we only deleting cluster and baseline information or we also delete entries(keys,value) of the database? if DB entries(key, value pair) still exists after PDS data deletion, is it possible that once new baseline is created fresh and both nodes

Re: BaselineTopology branching error

is there a way to not allow new node to create new baseline and just start the node without baseline and when the older node comes up add it to the the older node's baseline? Or may be start the new node with older node's baseline? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Issue with BaselineTopology Branching History

What if my second node changed due to hardware failure or something at runtime. Is there a way that i start new node first , delete baseline history of first node somehow so that i can add older node to new node somehow? I am asking this because in our software this scenario can occur and we

Re: Issue with BaselineTopology Branching History

If i want to add a fresh node to cluster. Is it possible to start the fresh node first and then start the older node? How do i make sure that fresh node has persistence intact? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

BaselineTopology branching error

Hi Team, We are using baseline topology concept for our two nodes, running on separate machines. We are getting below error when both of these nodes run together- Caused by: class org.apache.ignite.spi.IgniteSpiException: BaselineTopology of joining node (DSU_B) is not compatible with

Re: Size of Data(Keys) are doubled when using CACHE in REPLICATED mode

Is there any API in C++ to know whether "all server nodes (which you expect to have at the moment) have joined the cluster"?? name of the function would be great help. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Size of Data(Keys) are doubled when using CACHE in REPLICATED mode

What is auto-activate feature? How does it work? And for how long should we wait before calling setActive(true)? Is there a way we can come to know whether cluster is activated or not? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Local node is not added in baseline topology

How do we know if the required that topology has required number ?Basically how do we know, for how long we need to wait? Is there a C++ API to check if topology has required number of nodes? Also in our case there will be two nodes- 1. local node 2. Remote node(configured at specific ip which we

Re: Local node is not added in baseline topology

How do we know if the required that topology has required number ?Basically how do we know, for how long we need to wait? Is there a C++ API to check if topology has required number of nodes? Also in our case there will be two nodes- 1. local node 2. Remote node(configured at specific ip which

Re: Local node is not added in baseline topology

How can we do activation using C++ and not control.sh script? Basically how do we use baseline topology feature using C++? Are there C++ libraries for the same? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Local node is not added in baseline topology

How to achieve the same using C++? Are there any cluster APIs for C++? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Java Heap

But we are creating cache node in off heap memory right? Then why is it showing double value in "On heap"? Is it only showing double size as On heap or it will actually allocate that much memory? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

apache-ignite compatibility with armhf(32-bit arm linux)

I need to use apache-ignite for my armf(2-bit arm) linux application. Is apache-ignite compatible with 32-bit arm(armhf) linux? can i use apache-ignite debian package present on the website for armhf? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

apache ignite compatibility with armhf(arm 32-bit)

I need to use apache ignite for my Debian linux 32-bit version. Is it compatible with armhf(32-bit arm linux)? can i use apache-ignite debian package for the same? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Need to sync two apache ignite cache DB using ip address

So are you saying apache ignite automatically does that. Do i need to configure the ip of the other node somewhere in xml file so that data keeps syncing? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Need to sync two apache ignite cache DB using ip address

Hi Ilya, I want one node to be master for all entries. How can i achieve this? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Need to sync two apache ignite cache DB using ip address

Hi Team, We have 2 apache ignite DBs located at separate IPs and connected through TCP-ip connection. ne of this DB should work as master dB and on any change should sync to other apache ignite DB and update the entries accordingly. How can i achieve this ? what changes do i need to do in xml

Re: how to build only apache ignite core binaries and jar files using maven

i do not need to the zip of bin files. Basically i want to build modules/core and i want to put the output jar files inside /module/libs folder. when i run the command mentioned by you in the thread it puts the generated jar files in module/core/target folder. -- Sent from:

Re: how to build only apache ignite core binaries and jar files using maven

Thanks Ilya. I am able to build the binaries using above command. Is there any way that i can put the output jar files in a specific target directory? Currently its going in core/target and core/target/libs And the apache ignite is trying to pick the libraries from modules/libs folder. -- Sent

Re: how to build only apache ignite core binaries and jar files using maven

Thanks Ilya. I will try this command. But what if i go to module/core and run below command- mvn clean install -DskipTests -Dmaven.javadoc.skip=true Will it still build everything? Is there any difference if i run above command from whole src folder and if i run this command from modules/core?

how to build only apache ignite core binaries and jar files using maven

Hi Team, We want to build only modules/core specific binaries and jar files using maven. How can i do it. Currently when i try to build the bianires/jar files using maven, it builds a lot of other files and download a lot of other dependencies. Is there a specific file where i can do this change?

Re: How to build apache ignite binaries using source code for C++ platform

Hi , actually we need to build core module of apache , using Maven. Is there a way to skip optional modules? We are using below link to build apache binaries(jar files)- https://ignite.apache.org/download.cgi#build-source -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

How to build apache ignite binaries using source code for C++ platform

Hi Team, We want to build apache ignite binary using apache-ignite-2.8.0-src source code. We are using below command to build the same- mvn clean package -DskipTests But looks like it is downloading too many dependencies for the same. Can we build it only for C++ platform? if yes how? Also is it

Re: apache-ignite_2.8.0-1_all.deb package has older version of openjdk as dependency

Can we have the newer debian package for apache ignite with newer version of openjdk as dependencies? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Are stored in apache ignite cache in random order

Hi Team, If we use composite key as key to store data in apache ignite cache as pair. Is the data stored in exact same sequence as we write it in? or its stored in some random order(may be on the basis of hash value of the key)? When we are trying to fetch the whole data stored in cache it is

Re: apache-ignite_2.8.0-1_all.deb package has older version of openjdk as dependency

are you talking about oracle-java8-installer? mentioned in control file of your package? actually we are able to manually compile platform/cpp code using openjdk-11. So wanted to check with you if there is any specific reason for using openjdk-8 for .deb released package? -- Sent from:

Re: apache-ignite_2.8.0-1_all.deb package has older version of openjdk as dependency

Thanks Petr. When can we expect 2.8.1 .deb package with newer openjdk dependency? -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

apache-ignite_2.8.0-1_all.deb package has older version of openjdk as dependency

Hi Team, We are using apache-ignite for our C++ application based on debian 10(buster). We tried using apache-ignite_2.8.0-1_all.deb package but it depends on openjdk-8 which is older version and not available for debian 10 buster. I have below questions- 1. Why older version of openjdk is used