Re: PCF tile for Ignite

Hi, I have not seen Ignite containerized within PCF, but I have no see any limitation of that yet. May be anyone from Community know about Ignite for PFC? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/PCF-tile-for-Ignite-tp12466p14034.html Sent from the

Re: Node is out of topology

Hi, One way to re-join node to topology is stoping it and restart. Node was not been join to cluster themself, because does not possible to merge data between one cluster node (due to GC pause) and whole topology. After the node left the cluster some of cache operation (put, remove) could be and

Re: How to debug a method in a streamer's receiver() method?

Hi, The method will be invokes in server side, but only on particular nodes (where the data entry will be stored). The batch of data will be submit to receiver when the buffer (DataStreamer#perNodeBufferSize()) is full of got a time of do that by frequency (DataStreamer#autoFlushFrequency()) or

Re: Node is out of topology

Hi, What are you wan to check? Did not possible know frozen process or not into themself. Also you should set a alarm to this metric: ^-- CPU [cur=100%, avg=1.38%, *GC=1078.23%* ] it means you node suffer from lot of garbage (which lead to SWT pause). If you want to know when the node is

Re: IgniteCache.containsKey does not acquire Transaction lock

Hi, cache.containsKey() never locking key (I checked it in Ignite version 1.7 till 2.0), but you can use simple cache.get(). This method (cache.get) will got a lock for particular key, even if returns null. -- View this message in context:

Re: PCF tile for Ignite

Hi, Could you please explain what you do? Are you get some exception on start? Usually enough download Ignite, extract it and run ignite.(but/sh). If necessary modify default-config.xml. -- View this message in context:

Re: Memory Usage - OFFHEAP_TIERED Cache Memory Mode

Hi, VisorCmd shows avarage value of some first cache rows, after multiplies over all elements count. It does not got exact cache size, only estimate. Furthermore in a latest Ignite version 2.0, work with memory radically changed[1] and to make estimation by elements does not possible. If you sow

Re: When will be the data written to Swap Memory

Hi, If I correct understand you are mean Ignite 1.X. Using swap depends of your cache configuration, you can to specifay whole chain when data puts on java heap, after evicts to off-heap and swaps to disk at last. You should to specify an eviction policy for the rules from on-haep to off-heap,

Re: Alerting and Eventing in Ignite

Hi, You can not use Ignite Alert by custom event, because it works by time only. But you can to use a local listener for specific events[1] or extend EventStorageSpi (IgniteConfiguration#setEventStorageSpi) for handling all local events. [1]:

Re: what does remaps mean in DataStreamerImpl.java

Hi, I have see that your grid suffer from long running operations: [19:20:19,285][WARNING][grid-timeout-worker-#63%null%][GridCachePartitionExchangeManager] Found long running cache future [startTime=19:18:55.302, curTime=19:20:19.280, fut=GridDhtAtomicSingleUpdateFuture

Re: Ignite Home Directory

Hi, If Ignite could not write to home directory, it will got some side effect. Could you please provide thread dump from this server node? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Ignite-Home-Directory-tp12271p12303.html Sent from the Apache Ignite Users

Re: Ignite Web Sessions Caching Failover question

Hi, If Ignite server is fail down at some moment, you prevent to loose data only if you have enough node with backups. But if your whole cluster is down, you surely got a fail in web application. Siva Annapareddy wrote > Application nodes store web Session in their own JVM Real user can

Re: Ignite Stream Processing?

Hi, Ignite supports simple continuous mapping API[1] for a stream of data. I do not understand why you will not can filtered a data on map job or implement you own interface. But I think, you can got issue with collocation in this approach. [1]:

Re: Veracode identifies Insufficient Entropy issue in Apache Ignite Classes

If you configure sslContextFactory then client communicate through security socket, because client work as node of cluster (using CommunicationSPI). -- View this message in context:

Re: Veracode identifies Insufficient Entropy issue in Apache Ignite Classes

rick_tem, Why you not to use SSL/TLS configuration[1]? In this case all nodes (including visorcmd) will be communicate through a security socket. jackbaru, In my point of view, those places (which was be in the report) do not relevant to security. This is internal usage of standard platform

Re: what does remaps mean in DataStreamerImpl.java

At first if you are having only one backup you surely data lose when kill 3 nodes (you can to do that when only kill one by one and waiting rebalancing complete after each). Could you please attache a full log file at leas one node where the remap failed messages are present? -- View this

Re: what does remaps mean in DataStreamerImpl.java

How often sessions are timedouted? Is it node have been alive fe6409cb-88a2-43da-9eb7-9b17cf5debcb when message are appear? This seem as topology are breaks down. Please provide all logs from each nodes. -- View this message in context:

Re: SQLQuery and Datatypes

Hi, I think it will be possible for java.util.Date, but you you are should format date which was been understanding by H2 db. But you can use constants as parameters and it will be more flexible. For dynamic SQL parameters are useful when more then one query generated with on query text, but

Re: Veracode identifies Insufficient Entropy issue in Apache Ignite Classes

Hi, I do not think, which of these places of code are related security concern. Ignite by itself does not cryptographic framework, but if you want to implement security logic you always capable to use own random algorithm. It will by easy, if you are explain what was you worried about? Please

Re: Exceptions while running Closure with task count > 1000

Hi, You will get the message "Task was not deployed or was redeployed" when topology is instability. You need to look at heap utilization and GC work. I recommend to try G1 garbage collector and jdk 1.8 with option like this: -server -XX:SurvivorRatio=12 -XX:ConcGCThreads=8 -XX:+AlwaysPreTouch

Re: Exceptions while running Closure with task count > 1000

I have reproduce you issue. Seem that is java heap issue. If the test is producing in one physical machine the issue does not reproduce, because costs of network communications are small. But when you are dedicate nodes by others computers, overheads are growing and heap space becomes

Re: Exceptions while running Closure with task count > 1000

Hi, I try to check your example at near time. But I wan to know hot to do that: 1) I should start empty Ignite server on dedicate machine. 2) After a empty server start, need to begin your example with n more then 1000. Is it correct scenario? -- View this message in context:

Re: Run Ignite on a separate Yarn Queue instead of default queue

Hi, I have found the issue[1]. Unfortunately it were not resolved. [1]: https://issues.apache.org/jira/browse/IGNITE-2738 -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Run-Ignite-on-a-separate-Yarn-Queue-instead-of-default-queue-tp12046p12155.html Sent from

Re: what does remaps mean in DataStreamerImpl.java

Although, I'm not right (it should by remaper). Could you provide reproducer? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/what-does-remaps-mean-in-DataStreamerImpl-java-tp12033p12079.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: what does remaps mean in DataStreamerImpl.java

Hi, How many backups (o.a.i.configuration.CacheConfiguration#setBackups) do you use? If your cluster does not contain backups, a batch will not remaped, until rebalance finished. -- View this message in context:

Re: what does remaps mean in DataStreamerImpl.java

Hi, DataStreamer packs all cache operations to batch request to grid server node. If this batch was not executed correct in particular node, it will by remapped to other. Maximum of remaps cunt is 32 (DFLT_MAX_REMAP_CNT). -- View this message in context:

Re: Exceptions while running Closure with task count > 1000

Hi, Could you try to exclude p2p class loader (IgniteConfiguration#setPeerClassLoadingEnabled to false), putting jar (with closure implementation) on each node and retry? Is looks like a some race, but I could not reproduce without full working example. If it will be easy, please, can you

Re: Error During data Loading using Ignite Data Streamer in Parallel

Hi, Ignite DataStreamer with IgniteDataStreamer#allowOverwrite is false does not work correct on instable topology until latest version. If you want to Failover SPI will be used, you can set the property (IgniteDataStreamer#allowOverwrite) is true. -- View this message in context:

Re: Ignite server showing this error class org.apache.ignite.IgniteCheckedException: Failed to send message (node may have left the grid or TCP connection cannot be established due to firewall issue

Hi, 1) Yes, default configuration failower SPI should by fit. Not need to configure it specify at most cases. 2) Why are you think so? If it is, what are results when you try to execute task, but node is out of topology? Can you provide reproducer? 3) The information often contains in the logs

Re: Ignite server showing this error class org.apache.ignite.IgniteCheckedException: Failed to send message (node may have left the grid or TCP connection cannot be established due to firewall issue

Hi, The message appear when operation try to execute on stopping (or starting) node. If the message was throwed then means node out of cluster. Tasks which will be execute in the node should be rout to another (by failover SPI) Please, explain where are you sow problem? -- View this message

Re: A question about cluster configuration (Are there any way to make client connection faster?)

Hi If you are use port range, than this can consume more time, because Discovery SPI try to connect to by all port in range. But If you are specified single port, connection should be fast. Why are you think that delay occur on discovery phase? -- View this message in context:

Re: CPU Usage on distributed queries

Hi, How was Ignite nodes and physical machines mapped? Where Ignite nodes more there is CPU utilization greater, isn't it? Where were SQL query generated (on one of a srever node or other)? I think, CPU utilization shuold be same over of nodes, because SQL executed as Map Reduce task. --

Re: Query on collections in a cache object

Hi, Even if you use SQL query whole data set will be loaded to client side (on reduce phase) and sorted local. That behavior will be change only 2.0 version[1]. [1]: https://issues.apache.org/jira/browse/IGNITE-3013 -- View this message in context:

Re: Query on collections in a cache object

Hi, You can do it using ScanQuery[1] with specific filter, and reorder result by your logic. You can not find in nested collection on SQL query. For do this you should store Person and Phone separately link them using foreign keys. You can then join these two table in your SQL query[2]. [1]:

Re: Distributed Closures VS Executor Service

Hi, Ignite has internal implementation ThreadPoolExecutor, which used in ignite compute, and it has BlockingQueue with Integer#MAX_VALUE internal. Lock at in IgniteThreadPoolExecutor [1]. [1]:

Re: Distributed Closures VS Executor Service

Hi, Ignite compute[2] is the general mechanism to execute distributed task. If you are mean Executor Service[1], it is only convenient API. Distributed tasks will be stay at queue if public thread pool is full. If you need to increase thread count in public pull you can do that[3]. ...

Re: 答复: how to use memory efficiently

I do not see an memory issues at the model, but you should always remember about cache overhead[1] Size of any entry should be bigger than the 200 bytes. [1]: https://apacheignite.readme.io/docs/capacity-planning-bak#calculating-memory-usage -- View this message in context:

Re: BinaryObjectException after Ignite restarts

Hi, Could you please provide a reproduction example? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/BinaryObjectException-after-Ignite-restarts-tp9552p9558.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: how to use memory efficiently

Hi, 1) No cache name does not affect the memory utilization. 2) Yes, the key can 3) Ignite stores the description of the class only once, and organizes hash each object. class or field name length does not affect the memory. 4) Off_heap may be cheaper by memory consume, because in some case two

Re: Cache transformations

And take attention: "DataStreamer" and "Ignite Compute" use one thred pool (public thread pool). Hence you should execute work with streamer asynchronously (other side you risk to get a thread starvation). -- View this message in context:

Re: Cache transformations

Hi, Now one node of Ignite execute the operation at only a one thread. You should use one thread by partition, those. scan query[1] with method "setPartition" (instance of local entries). Using affinity[2] for determine partition by nodes and run your task by each. You can slightly increase

Re: Order of transaction commit, cache update and event listener notification

Hi, Ignite does not have snapshot isolation in transaction. Although community seriously wants to implement it [1]. If you are want something like, I think, you can add Date field (make index by it) into object and execute SQL by concrete timestamp. [1]:

Re: Explicit lock whithin a transaction

Hi, I recoment to use PESSIMISTIC, READ_COMMITTED (without any locks) transaction for each account. And look at the comment on Val[1]. You are doing somtink like this, as I understand from first post. Why is this method is not suitable? [1]:

Re: Memory consumption in apache ignite

Hi, How are you measure size of data (370MB)? If you use ONHEAP_TIERED mode, entries can to store on in state (serialized and deserialized), look at issues [1, 2], but you can avoid this behavior, if server does not have object classes. [1]: https://issues.apache.org/jira/browse/IGNITE-3347 [2]:

Re: SELECT with ORDER BY and pagination

Hi, Lock at the method (o.a.i.cache.query.SqlFieldsQuery#setPageSize), that allow to set sql page size. If you are going through cursor (result of cache.query()) or executing "getAll" then you get all result data. Client gets data into page range, if used cursor (and sent request to the next

Re: SQL query against cache with read-through CacheStore

Hi, Yes, you are right. You should preload[1] data before SQL will execute. [1]: https://apacheignite.readme.io/docs/data-loading -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/SQL-query-against-cache-with-read-through-CacheStore-tp9039p9045.html Sent from

Re: Cluster hung after a node killed

Hi, I think, INFO log level would be enough (from all nodes). -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Cluster-hung-after-a-node-killed-tp8965p8991.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: How can I detect DB writing abnormal in case of write-behind?

Hi, You should enable cache statistics: ... for get correct value from metrics. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/How-can-I-detect-DB-writing-abnormal-in-case-of-write-behind-tp8954p8989.html Sent from the Apache Ignite Users

Re: IN Query

Hi Anil, I tred to reproduce your case, but got expected behavior (indexes are used). I slightly modified your SQL for the my cache configuration: select * from ( (select p.id, p.name from "simple_cache".Person p join table(joinId INT = (1, 3)) i on p.id = i.joinId) UNION (select p.id, p.name

Re: java.lang.ClassNotFoundException: Failed to peer load class

Hi Alsex, Can you please provide this class com.testlab.api.inf.dao.RepositoryDao? It can has serialization issue for particular class. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/java-lang-ClassNotFoundException-Failed-to-peer-load-class-tp8778p8953.html

Re: start C++ server in linux， it report "Failed to initialize JVM" error

Hi, Ignite fully compatible with JDK 7. I think, you try to run Ignite into lower version than 7. 51.0 matches to JDK 1.7 Please, make sure, that Ignite runs in particular JDK (check env). -- View this message in context:

Re: Remote Server Thread Not exit when Job finished,Cause out of memory

Hi Alex, I think, these threads are executing into pools of threads, and number of threads always restricted by pool size[1]. You can configure sizes manually: [1]: https://apacheignite.readme.io/v1.7/docs/performance-tips#configure-thread-pools -- View this message in context:

Re: Ignite Cache setIndexedTypes Question

Hi, You can use Igniteconfiguration.setIndexedTypes(Kei.class, Val.class) and annotations or (not both) Query Entity and configure indexes in it. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Ignite-Cache-setIndexedTypes-Question-tp8895p8937.html Sent from

Re: Ignite Cache setIndexedTypes Question

Hi, It is should not be very slow. If you will not use index, then SQL will work slow. You can try to use QueryEntity[1] without indexs on fields. How many index do you use? Could you please provide this classes? Please properly subscribe to the user list so that we can see your questions as

Re: One server node seems to hang onto heap memory after clear

Hi, If your caches are off_heap, these do not consume heap basically. Could you please, get heap dump and try to provide briefly analyze, which object consume heap? -- View this message in context:

Re: What's the difference between EntryProcessor and distributed closure?

Hi Tracyl, You can use "invoke", the method will be most effective for retrieve part of value from cache. For the withKeepBinary off_heap cache "invoke" takes lock on entry and can to manipulate with off_heap pointer wrapped on BinaryObject. -- View this message in context:

Re: How many nodes within your ignite cluster

Hi Duke, I don't know, why one node fail leads to fail all other. It is not a normal behavior. What is reason fail first node, and others? Can you increase failureDetectionTimeout, if you think this is network issue? (or network timeouts in discovery SPI) Could I look at logs from each nodes?

Re: [EXTERNAL] Re: Class objects are fetched as string when JDBC api is used

Hi, Difficult understand what are you meant. Could you please provide full working example? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Class-objects-are-fetched-as-string-when-JDBC-api-is-used-tp8720p8828.html Sent from the Apache Ignite Users mailing list

Re: Null column values - bug

Hi Anil, You should not to pay attention on version warning message in nightly build or manual build version. Because the message is right only for versions which already released (this is simple comparison with last released version on this site http://ignite.run/update_status_ignite.php). When

Re: Kafka - Failed to stream a record with null key

Hi, In my view, you try to do something strange. You have got exception at compile time, how are you want assign new reference onto return value? Please, create a ticket on Ignite Jira[1], as Roman said. [1]: https://issues.apache.org/jira/browse/IGNITE -- View this message in context:

Re: Not able to store key value on remote ignite instances

Hi, It is look like node cannot to establish connection over CommunicationSPI. Please check are ports of communication (by default 47100 with range 100) open in remote server machine. See this article[1] in additional. [1]:

Re: How many nodes within your ignite cluster

I think 100 node is large cluster, but if you configured each machine (FS, look at this document[1]) equally and debugged work - this can be done. 100 nodes is difficult task, because the cluster will be have many point of failure, but in the other side cluster will have height failover tolerance.

Re: java.lang.ClassNotFoundException: Failed to peer load class

It is a duplicate of the topic: http://apache-ignite-users.70518.x6.nabble.com/java-lang-ClassNotFoundException-Failed-to-peer-load-class-tt8778.html -- View this message in context:

Re: Apache ignite hadoop accelerator not starting

Hi, Please properly subscribe to the user list so that we can see your questions as soon as possible and provide answers on them quicker. All you need to do is send an email to ì user-subscr...@ignite.apache.orgî and follow simple instructions in the reply. The class is part of hadoop-common

Re: if Cache POJO changed, need reload the cache?

Hi, Please properly subscribe to the user list so that we can see your questions as soon as possible and provide answers on them quicker. All you need to do is send an email to ì user-subscr...@ignite.apache.orgî and follow simple instructions in the reply. Ignite full support jcache API: it

Re: SqlFieldsQuery error when I update ignite version to 1.7.0(it works with 1.6.0)

Also, yes, Ignite 1.7 depends of h2 1.4, but Ignite 1.6 depends of h2 1.3. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/SqlFieldsQuery-error-when-I-update-ignite-version-to-1-7-0-it-works-with-1-6-0-tp8577p8579.html Sent from the Apache Ignite Users mailing

Re: SqlFieldsQuery error when I update ignite version to 1.7.0(it works with 1.6.0)

Hi, Please properly subscribe to the user list so that we can see your questions as soon as possible and provide answers on them quicker. All you need to do is send an email to ì user-subscr...@ignite.apache.orgî and follow simple instructions in the reply. Could you please provide full stack of

Re: Loading Hbase data into Ignite

Hi Anil, I doubt, about this fields can serialize correctly: private Scan scan; private QueryPlan queryPlan; You need will get rid of this fields from serialized object. -- View this message in context:

Re: Killing a node under load stalls the grid with ignite 1.7

Hi Binti, Hi, This is look like a lock GridCacheWriteBehindStore and GridCachePartitionExchangeManager. Could you give work an example of this? If not I try to reproduce it tomorrow -- View this message in context:

Re: How to get the load status of the Ignite cluster

Hi, It is duplicate. I am given answer in the thread[1]. [1]: http://apache-ignite-users.70518.x6.nabble.com/How-to-get-the-load-status-of-the-Ignite-cluster-tc8232.html -- View this message in context:

Re: @CacheLocalStore: toplogy changing strategy

Hi, Yes, you are right. In your case, data does not load from persistent store before obtain this from cache. If you are invoke wn.ignite.test.Get between these phases: 8. Start both nodes > Run Get Client: it gets 10 records from MyCache 9. Run Node3 You get expected behavior. You can

Re: INTERVAL expression does not work with mysql apache ignite

Hi, Could you please provide full call stack of the exception? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/INTERVAL-expression-does-not-work-with-mysql-apache-ignite-tp7986p8145.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: Filed to acquire Lock

Hi, Discussion has been moved to another thread. http://apache-ignite-users.70518.x6.nabble.com/Enter-Lock-is-not-working-tc8040.html#a8142 -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Filed-to-acquire-Lock-tp8042p8144.html Sent from the Apache Ignite

Re: Enter Lock is not working

Hi, If you can not get lock, this means it has been already acquired. Could you please provide thread dump from all cluster nodes? -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Enter-Lock-is-not-working-tp8040p8142.html Sent from the Apache Ignite Users

Re: CLUSTER GET HANGED SUDDENLY

Hi, Lockups may be caused that some locks may not be released. The discussion moved to chatter. Let community know about solution, if it you solved already... -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/CLUSTER-GET-HANGED-SUDDENLY-tp8027p8056.html Sent

Re: Ignite zeppelin jdbc connection

Hi, This can be if you change data from database (for example using SQL update) after loading to Ignite cache. Ignite does not load data if they had loaded already (idetificatin by key). If you use setReadThrough and setWriteThrough, you need to modify data through cache only. junyoung.kang

Re: Ignite zeppelin jdbc connection

Hi, As I know you can configure CacheJdbcPojoStore in order to pairs of various object save to different tables. But in the case types of key must be different. All nodes of cluster need to have value classes on classpath or to configure About loading data from persistent store you can

Re: Wat is the default SSL port for ignite

Hi, If SSL configured, communication and discovery SPIs will be working through security socket. All ports discovery and communication, which port do you mean? ctalluri wrote > If we enable SSL, what is the default SSL port for ignite > > -Thanks in advance -- View this message in

Re: Adding fields to QueryEntity

Hi, Unfortunately, It is not supported in current version. But lock at this ticket[1], it planed to next Ignite version. [1]: https://issues.apache.org/jira/browse/IGNITE-735 -- View this message in context:

Re: How getAndPutIfAbsent works within a transaction

Hi, I think it depends of transaction type (optimistic / pessimistic). Pessimistic transaction gets a lock from key at first attempt to access and last operation (getAndPutIfAbsent) on this key will by able to perform after commit previous transaction only. At optimistic transaction all be occur

Re: Services not injected into CacheStore if deployed using Spring configuration

I think, you are right. Could you plese create issue for Ignite in Apache Jira[1]? Until you can to use something like this: Ignite ig = Ignition.ignite(); backend = ig.services().service(CacheStoreBackend.SERVICE_NAME); as workaround. [1]:

Re: Stopping local node according to configured segmentation policy.

Hello, 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. The reason of segmentation in most cases is a delays:

Re: Clearing a distributed queue hangs after taking down one node

Hello, 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. Thank for the information. I have created matching issue:

Re: Trying to understand: callable with JTA transactions

Please properly subscribe to the mailing list so that the community can receive email notifications for you messages. Here is the instruction: http://apache-ignite-users.70518.x6.nabble.com/mailing_list/MailingListOptions.jtp?forum=1 Look at the article [1]. You need to have TxManagerFactory

Re: what are the differences between put and replace method

Hello, Replace method is equivalent to the code snippet: /if (cache.containsKey(key)) { cache.put(key, value); return true; } else { return false; }/ Can you lock at the jcache Javadoc: http://ignite.apache.org/jcache/1.0.0/javadoc/javax/cache/Cache.html#replace(K, V)

Re: IgniteDataStreamer can't wirte data to ignite cluster

Continue discussion here http://apache-ignite-users.70518.x6.nabble.com/IgniteDataStreamer-can-t-wirte-data-to-ignite-cluster-tt7012.html -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/IgniteDataStreamer-can-t-wirte-data-to-ignite-cluster-tp7003p7018.html Sent

Re: Deploying service programmatically hangs the app

Hello, Please properly subscribe to the mailing list so that the community can receive email notifications for you messages. Here is the instruction: http://apache-ignite-users.70518.x6.nabble.com/mailing_list/MailingListOptions.jtp?forum=1 Could you please provide full example, where hang

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 *

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

Re: Cancel tasks on Ignite compute grid worker nodes

Hello, My first answer is corrupted. I duplicate it again I would used support asynchronous operation, and cancel IgniteFuture if needed. For example: 1) Create cluster group by attribute cg = cluster.forAttribute("ROLE", "worker"); 2) Make compute async c = igniteClient.compute(cg).withAsync()

Re: Cancel tasks on Ignite compute grid worker nodes

fs12345 wrote > Hi all, > > Let me start by saying I am quite a novice with Apache Ignite. > > Here is my question : I want to be able to monitor and cancel tasks > running or that are going to run on worker nodes of an Ignite Cluster (say > for example if one task takes too long to complete),

Re: AWS Autoscaling

Hello dilipramji, You can use TcpDiscoveryS3IpFinder for AWS or TcpDiscoveryCloudIpFinder for adding nodes to cluster. Also see the articles: https://apacheignite.readme.io/docs/aws-config https://apacheignite.readme.io/docs/generic-cloud-configuration dilipramji wrote > Hi, > > Does

Re: Cluster Formation between nodes in different data centers

Hello, Can you check ping between data centers? If delay of network may be long, you can incrase FailureDetectionTimeout (use org.apache.ignite.configuration.IgniteConfiguration#setFailureDetectionTimeout) In additional you need make sure what communication ports are available in all nodes (by

Re: Can't stop Ignite instance using Ignition.stopAll() or Ignition.kill() until writeBehindFlushFrequency passed

Hello, I can not reproduce the issue. In my test case all data entries save immediately after call Ignition.stopAll(true). If you had have example, which demonstrate the behavior, can you please provide source code? -- View this message in context:

Re: Just a basic query generally?

Hello Ravi, Have experience around three-four years using java usually enough. Also experience in using Spring xml will help, but much more important understanding multithreading environment, patterns and approach. I think you cope. -- View this message in context:

Re: Cache metrics - cache hits and misses are 0, also isEmpty in inconsistent state with getSize

Hello, Yes, cache metrics not work by default for performance reason. You can enable it throught cache configuration property javax.cache.configuration.MutableConfiguration#setStatisticsEnabled (or into xml ) -- View this message in context: