RE: Activation: slow and: Ignite node crashed in the middle of checkpoint.

Hi Roger, The recovery message in logs is normal case when node was forced to stop. This only means that data are restoring from WAL on start. Slow activation doesn't look OK, it shouldn't take so long. Could you please restart grid with -DIGNITE_QUIET=false JVM flag and share logs? Thanks!

Re: TcpDiscoveryVmIpFinder handle IP change

Hi, It looks OK, I don't see any problems here. Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/TcpDiscoveryVmIpFinder-handle-IP-change-tp16156p16198.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: Cache loader factory with peer class enabled mode

Hi, Peer class loading was designed for compute tasks deployment, it's not applicable for configuration classes or cache entries. So you have to copy that classes to all nodes. Thanks! -Dmitry. -- View this message in context:

Re: how does write request send to new node when rebalancing before affinity changed?

Hi, Cache requests will continue going to old nodes unless re-balancing finished. After re-balancing new affinity mappings applied and discarded the old ones, so you request only actual data. In details, before sending request to node, requester checks a last valid topology version, and gets

Re: Gridgain Stat Data

Hi Priya, I think you're looking for Ignite web console [1]. [1] https://ignite.apache.org/addons.html#web-console Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Gridgain-Stat-Data-tp14750p14868.html Sent from the Apache Ignite Users mailing

Re: Fields order in binary object.

Hi, It seems Ignite doesn't sort fields for binary objects by default. Use IGNITE_BINARY_SORT_OBJECT_FIELDS system property: -DIGNITE_BINARY_SORT_OBJECT_FIELDS=true or System.setProperty("IGNITE_BINARY_SORT_OBJECT_FIELDS", "true"); Thanks! -Dmitry -- View this message in context:

RE: Gridgain Stat Data

Yes, try Visor CLI, but it's very limited [1]. [1] https://apacheignite-tools.readme.io/docs/command-line-interface Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Gridgain-Stat-Data-tp14750p14870.html Sent from the Apache Ignite Users mailing

Re: Ignite PlugingProvider

Hi Luqman, ExtensionRegistry is used by IgnitePluginProcessor to replace internal Ignite interface implementations, but it's only used for MessageFormatter, MessageFactory and IoPool (search usages for IgnitePluginProcessor#extensions). So if you do not want to use your own implementation for

Re: Heap Memory Limit Set

Hi, This value is just a sum of available heaps on JVMs on which nodes are running. You may limit each node with -Xmx10g or -Xmx5g for example. Thanks! -Dmitry -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Heap-Memory-Limit-Set-tp14560p14597.html Sent from

Re: Data eviction to disk

Hi, You may check out the swap storage [1], but it will be useful if keys significantly smaller than values, because keys will be kept in memory. [1] https://apacheignite.readme.io/v1.8/docs/off-heap-memory#swap-space Thanks! -Dmitry -- View this message in context:

Re: Determine current number of Server Nodes

Hi Chris, You understand correctly that you need to subscribe for node joined event. Here is possible example of how to write it: private static class Listener implements IgnitePredicate { @IgniteInstanceResource private Ignite ignite; @Override public boolean

Re: getAsMap ??

Hi Chris, Collecting all data from cache to map is a bad idea, because it could be quite large and you may get OutOfMemoryError. Exactly for that purpose ScanQuery was designed [1]. You may set filter and using cursor get data: iterating over it (this will load entries from grid with batches), or

Re: export ignite data

Hi, Probably the reason of client reconnection was a long GC pause on it. Try to use scan query [1], it's liter than SQL, and check that you have enough of heap. [1] https://apacheignite.readme.io/v1.8/docs/cache-queries#scan-queries Thanks! -Dmitry -- View this message in context:

Re: Monitor remote cache in Ignite

Hi, You may use Ignite Web Console for that purpose [1]. [1] https://ignite.apache.org/features/datavisualization.html Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Monitor-remote-cache-in-Ignite-tp13982p14022.html Sent from the Apache

Re: Ignite-cassandra module issue

Hi, Is it possible to provide a simple reproducer? Answering your second question, yes, you can use BinaryObject as persistence class name. Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Ignite-cassandra-module-issue-tp13808p14025.html Sent

Re: Streaming test

Hi, Could you please share your test project? Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Streaming-test-tp14039p14041.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: How to safely shut down an app with shared RDD without lossing data?

Hi, It's usually better approach to run client code on client nodes, because they don't keep cache data and, as a consequence, shutdown or restart doesn't change cache state. Another way is to configure cache with backups, f.e. in your case you have 2 server nodes, if you set

Re: BinaryFieldIdentityResolver

Hi, You forgot to pass configuration to Ignition.start() method :) Ignition.start(config); -Dmitry -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/BinaryFieldIdentityResolver-tp12896p13018.html Sent from the Apache Ignite Users mailing list archive at

Re: Expired entry in cache with persistent store

Hi, This is a correct behavior, by design any cache evictions and expirations don't affect store, because cache usually keeps only hot data. If you set read though, then Ignite will request store in case if entry wasn't found in cache, otherwise it returns null and to load that data back in cache

Re: novalue (NULL) vs default zero for writeInt/readInt

Hi Sam, There is no method in public API that checks filed existense, but you may use readObject(). It will return null if field was not found, otherwise you'll need to unbox the value. Thanks! -Dmitry. -- View this message in context:

Re: how to let client node connect to server node, not server connect to client

Hi Jeff, Unfortunately, you cannot avoid this and you need to open that ports (47100-47109) on client node, because communication must has ability to initiate connection in both directions. Also you may leave those ports open only for hosts where server nodes are running. Thanks! -Dmitry --

Re: Cache Not working

Hi, Sorry for late response. It looks like you close the stream and stop the node before any data got received. Try to remove try-with-resources from starting client node, creating cache and streamer. -Dmitry. -- View this message in context:

Re: Proper use of ignite semaphore

Hi, To make semaphore fail safe in your case you may set AtomicConfiguration to IgniteConfiguration with REPLICATED cache mode, so semaphore data will be stored on every node. Additionally check FifoQueueCollisionSpi [1] that will control jobs execution for you. [1]

Re: Fully dynamic cache

Hi, You can dynamically create and change binary objects with BinaryObjectBuilder [1], but fields that you want to query must be specified on node startup at least with QueryEntity [2], but altering internal query tables at runtime is not possible for now. [1]

Re: How to create a compute tasks which uses Cache and transaction?

Hi, First of all, Java task class should be available on server, then you'll be able to run the task using it's class name [1]. In that task you may access cache with transaction using standard Ignite Java API [2]. You need start server only once, and then invoke task as many times as you want.

Re: IgniteRDD SQL query stalled or extremly slow on large input argument

Hi, Could you please attach thread dumps from all nodes? Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/IgniteRDD-SQL-query-stalled-or-extremly-slow-on-large-input-argument-tp13711p13859.html Sent from the Apache Ignite Users mailing list

Re: Grid is in invalid state to perform this operation

Sam, Please attach logs from your node. -Dmitry -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Grid-is-in-invalid-state-to-perform-this-operation-tp12360p12411.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: Sizing Guide

Hi, I'm not sure I understand your question, but if you need to calculate memory consumption, this might be helpful [1]. [1] https://apacheignite.readme.io/v1.9/docs/capacity-planning -Dmitry -- View this message in context:

Re: Cache Not working

Hi, Ignite and IgniteCache implement AutoCloseable interface, which means, if you use try-with-resources or explicitly call close() method it stops node and cache. Try not to stop Ignite node and cache while test. -Dmitry. -- View this message in context:

Re: Grid is in invalid state to perform this operation

Hi Sam, Was local node connected to remote cluster? Probably it was kicked off the cluster, because of closed connection. Thanks! -Dmitry -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Grid-is-in-invalid-state-to-perform-this-operation-tp12360p12379.html Sent

Re: Serializer

Hi, You may use your custom collections as is - they will be deserialized in correct type. If you want to implement Binarylizable with additional serialization logic, you can use something like follows (but this approach will need intermediate object): private static class CustomList extends

Re: IGFS - Python and R clients

Hi Sergey, To use IGFS from non-JVM languages you may configure it as FS for Hadoop in IgfsMode.PRIMARY mode. After that you can configure connectivity from any supported language to Hadoop and it's file system. Thanks! -Dmitry -- View this message in context:

Re: Security question

Hi Franck, Yes, here is used client-side security, looks like it was made to allow connect of different clients with different permissions. But it depends on GridSecurityProcessor. For example, it may have a node validation logic that will not accept nodes with unapproved security processor. In

Re: Error with ScanQuery

Hi Raymond, Could you please attach full log and config for failed node? Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: custom restful service using jetty server on top of ignite grid to perform crud operations and configure cache store

Hi, @IgniteInstanceResource annotation is a correct and the best way to get Ignite instance in service. Thanks! -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Security question

Franck, You're definitely right, but this is more like client roles than regular security. On "they have a number of connected clients with actual applications" I meant that user's application is connected to the grid via clients with their local permissions. But end user cannot access the grid

Re: Error with ScanQuery

Raymond, Without logs I see just that deserialization failed by some reason. Actually I more interested in exceptions that come from Ignite's java part if any. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: DML sql transaction

Hi Alisher, This issue is under active development: https://issues.apache.org/jira/browse/IGNITE-3478 Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: REST API Secret key not working

Ankit, Thanks for pointing to mistake in documentation. I've suggested edits for it. Thanks! -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Message Queue Size

Hi Rishi, Yes, but you need set heap size at least 512M and proper off-heap size [1]. But you won't be able to store large amount of data, you will need to enable persistence, it will allow to extend available memory with dis k[2]. [1]

Re: GC stalling all the activity

Hi, What is the size of your objects? Have you set CacheConfiguration.setOnheapEnabled() to true? Can you get heap dump and check out biggest consumers and their nearest roots? Normally all entries will go to off-heap, if it doesn't fit off-heap memory it starts swapping to disk. But loading may

Re: GC stalling all the activity

Hi, Looks like you have open transactions with a big number of entries (or large entries). Do you use TRASACTIONAL cache? How do you save values, using putAll()? If yes, you have following options: - Reduce batch size (number of entries that participate in one transaction). - Check keys, maybe

Re: With onHeapCacheEnabled = false, BinaryOnHeapOutputStream is still used, why?

Hi John, BinaryHeapOutputStream is the part of binary marshaller, and it's used for object serialization only. Entry are stored in off-heap paged memory as expected. Thanks! -Dmitry. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Message Queue Size

Hi Rishi, Message queue limit was disabled in 1.9 release because in async mode it may cause not obvious cluster stall, when OOMEs a quite rare issue. Currently planned a new back-pressure mechanism [1], another possible issue with PRIMARY_SYNC was already resolved [2]. Generally it's no need

Re: Error while starting service grid with persistent store enabled

Hi Rishikesh, Could you please create a reproducer project with config that fails with NPE? This will help to find a bug. Thanks! -Dmitry. -- View this message in context:

Re: Performance of persistent store too low when bulb-loading

Hi, The reason of slowdown might be the fact, that Ignite by default consumes 80% of available memory, which forces OS to start a lot of swapping, so all memory operations limited by disk speed. Try to reduce memory size [1]. [1]

RE: Strange problems with Ignite native Persistence when Data exceeds Memory

Hi Roger, The reason of slowdown might be the fact, that Ignite by default consumes 80% of available memory, which forces OS to start a lot of swapping, so all memory operations limited by disk speed. Try to reduce memory size [1]. [1]

Re: Performance of persistent store too low when bulb-loading

Hi, Had you any chance to get GC and dstat logs? Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Performance-of-persistent-store-too-low-when-bulb-loading-tp16247p16417.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: Re: In which scenario the ignite nodes will shutdown by itself

Hi Aaron, If data could not be stored to DB, they will reside in heap queue, but no more than batchSize. I see you set copyOnRead to false, this property forces ignite to keep object on-heap, why do you need it? Thanks! -Dmitry. -- View this message in context:

Re: Activation: slow and: Ignite node crashed in the middle of checkpoint.

Hi, Please share full logs and thread dumps, it's hard to understand the root cause. Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Activation-slow-and-Ignite-node-crashed-in-the-middle-of-checkpoint-tp16144p16341.html Sent from the Apache

Re: CacheAtomicityMode and CacheMode

Hi, 1. In most cases that exception might be thrown if cache store cannot be updated. Regularly even on unstable topology you won't get it, so the easiest would be to do putAll() with failed keys, it should be finished successfully. 2. By default memory shared across all caches, so you may check

Re: Performance of persistent store too low when bulb-loading

Hi, Could you please take dstat, Ignite and GC logs and few thread dumps when application is experiencing slowdown? Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Performance-of-persistent-store-too-low-when-bulb-loading-tp16247p16342.html

Re: Performance of persistent store too low when bulb-loading

Use this command for dstat: dstat -cmdgs --fs > dstat.txt Thanks! -Dmitry. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Performance-of-persistent-store-too-low-when-bulb-loading-tp16247p16345.html Sent from the Apache Ignite Users mailing list archive at

Re: getAsMap ??

Hi Chris, 1. Indexing may slowdown insertions, but in will not be used if no CacheConfiguration.setIndexedTypes() or CacheConfiguration.setQueryEntities() set. 2. It depends on conditions. If you have a lot of data, but you need to filter out a small set of them, then indexing may greatly help

Re: GC stalling all the activity

Hi, Under batch I understand key-value map that you pass to putAll(). Thanks! -Dmitry. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Memory is not going down after cache.clean()

Hi, Ignite can only increase memory consumption, there are no ways to reduce it. Practically it's not needed, because it's enough just to set desired memory size, and if persistence enabled - swap data to disk, when this limit was hit. Thanks! -Dmitry. -- Sent from:

Re: Cache Events for a specific cache.

Hi Chris, Your listener receives CacheEvent, which contains cache name, key and value. You may just check cache name and react accordingly [1] or use ContinuousQuery as you suggested. [1]

Re: Memory is not going down after cache.clean()

Hi, Just to clarify my words a bit. When persistence is enabled, all memory data are stored on disk with all durability guarantees. But it is also allows you to store in cache more data than you can fit in memory: Ignite just evicts stale data pages from RAM, and when they will be needed - loaded

Re: GC stalling all the activity

Hi, putAll() for atomic cache forces it to lock all keys and make this entry group updated atomically. I think it would be enough to reduce batch size or to use IgniteDataStreamer, if it's an initial data load. No need to change direct memory size, because Ignite off-heap doesn't rely on it.

Re: Group By Query is slow : Apache Ignite 2.3.0

Hi, How many nodes do you have and how do you measure that 70 ms? Is it first query or average time? Please show your EXPLAIN of the query. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Ignite 2.1.0 - transaction restrictions in multi-threading environment

Hi, First of all, Ignite object represents an Ignite node. Each such node may run more than one transaction and this object is thread safe. You may start only one transaction in thread, but Ignite object could be safely shared between your threads. Each transaction is bound to thread that it's

Re: Is it possible to import existing mysql database from file in console?

Hi, You have a few options here: 1) Write code that scans all tables in MySQL and loads data to grid with IgniteDataStreamer [1]. 2) Write code that parses MySQL CSV and using IgniteDataStreamer loads to grid. 3) Use existing CacheJdbcStore to preload data from MySQL (check out screen casts [2]

Re: Ignite service method cannot invoke for third time

Hi, Please attach thread dumps from all cluster nodes. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Group By Query is slow : Apache Ignite 2.3.0

Hi, How many records your query returns without LIMIT? How long does it take to select all records without grouping? Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: what did this log indicate?

Hi again, This looks quite similar to your issue, and it was fixed in 2.3 [1]. Check it out. [1] https://issues.apache.org/jira/browse/IGNITE-6071 Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: what did this log indicate?

Hi, Try to enable paired connections [1]. [1] https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/spi/communication/tcp/TcpCommunicationSpi.html#setUsePairedConnections(boolean) Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Benchmark results questions

Hi Ray, I wasn't able to run benchmarks quickly, but I've got following results for atomic put throughput (numbers are a bit lower that could be, because of profiling): Throughput Cluster 264930 1c4s 513775 2c4s 968475 4c4s 281425 1c8s 530597

Re: Benchmark results questions

Hi Ray, I've finally got results of query benchmarks: 4s1c 80725.80 80725.80 4s2c 78797.90 157595.80 4s4c 54029.70 216118.80 8s1c 64185.60 64185.60 8s2c 61058.10 122116.20 8s4c 34792.70 139170.80 First column - cluster configuration (in 8 server variant 2 nodes per machine), second - average

Re: custom restful service using jetty server on top of ignite grid to perform crud operations and configure cache store

Hi, In your code Ignite could not inject it's instance, because you have two instances of your class: one in Ignite as a service, another one is object that processes requests in Jersey. So when you're doing http query, it goes to jersey instance. How do you start Ignite? You may get ignite with

Re: Benchmark results questions

Hi Ray, I've got the same results on my environment and checking what happens. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Ignite service method cannot invoke for third time

Hi, It looks like anonymous EntryProcessor gets excess data in context. Try to make it inner static class and check logs for exceptions on all nodes. Thanks! -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Group By Query is slow : Apache Ignite 2.3.0

Hi Indranil, These measurements are not fully correct, for example select count(*) might use only index and in select * was not actually invoked, because you need to run over cursor. Also by default query is not parallelized on one node, and scan with grouping is going sequentially in one

Re: “Failed to communicate with Ignite cluster" error when using JDBC Thin driver

Hi, Is it possible that version of thin driver is different from version of cluster nodes? Does it happen on concrete queries or it could be on any one? Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: List of running Continuous queries or CacheEntryListener per cache or node

Hi, Currently it's not possible. What's for do you need such possibility? Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: “Failed to communicate with Ignite cluster" error when using JDBC Thin driver

Is there any case that you're using Connection in more than one thread? It's not thread safe for now. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Server node is frequently getting dropped from cluster.

Hi, Is it possible that firewall configured to block DDoS breaks connection to client node? Because I see here two possible cases: 1) STW pause on client, but we should see connection timeout exception; 2) Firewall rejects connections with a large traffic, and now you're getting connection

Re: Ignite cluster configure (2.3.0)

Hi Dmitriy, 1. You may use node filter [1] and specifically org.apache.ignite.util.AttributeNodeFilter that could be configured in XML without writing code. 2. Yes you can. You need to configure data regions and set persistenceEnabled flag. After that you may apply cachesh to that regions. [2]

Re: Ignite service method cannot invoke for third time

Sure, I meant you need to create your own inner class: private static class WorkflowEntryProcessor extends EntryProcessor { @Override public Object process(MutableEntry entry, Object... arguments) throws EntryProcessorException {

Re: ClusterTopologyServerNotFoundException

Hi, Could you please provide a reproducer? I don't get such exception. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: "WAL segment tail is reached", Is it a problem ?

Hi Mikael, Please share your Ignite settings and logs. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: How to use Affinity Function to Map a set of Keys to a particular node in a cluster?

Hi, Make sure that your keys are go to specific partition. Only one node could keep that partition at a time (except backups, of course). To do that, you may use @AffinityKeyMapped annotation [1]. Additionally you can implement your own AffinityFunction that will assign partitions that you need

Re: How to use Affinity Function to Map a set of Keys to a particular node in a cluster?

Normally (without @AffinityKeyMapped) Ignite will use CustomerKey hash code (not object hashCode()) to find a partition. Ignite will colsult with AffinityFunction (partition() method) and to what partition put key and with assignPartitions find concrete node that holds that partition. In other

Re: Ignite opens/close 5000 sockets in every 5mins after NODE_FAILED event

Hi, TcpDiscoveryMulticastIpFinder produces such a big number of connections. I'd recommend to switch to TcpDiscoveryVmIpFinder with static set of addresses. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: How to use Affinity Function to Map a set of Keys to a particular node in a cluster?

There are various possible ways, but use one partition per node is definitely a bad idea, because you're loosing scaling possibilities. If you have 5 partitions and 5 nodes, then 6 node will be empty. It's much better if you in AffinityFunction.partition() method will calculate node according to

Re: Transactional cache

Hi, Ignite keeps Tx cached values on-heap. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Baseline topology issue when restarting server nodes one by one

Hi, What IgniteConfiguration do you use? Could you please share it? Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Ignite Backup doubts

Hi, 1. By default get() will read backups if node, on which it's invoked is affinity node. In other words, if current node has backups, Ignite prefer to read local data from backup rather requesting primary node over network. This can be changed by setting

Re: monitoring function of web console

Hi, AFAIK, you cannot download plugin separately, it's commercial product. You can use it for free from here [1] or purchase a payed version for internal use. [1] http://console.gridgain.com/ Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Deleting a ticket from https://issues.apache.org/jira/projects/IGNITE/issues

Hi, Not sure if it's possible to remove the ticket. Just close it with won't fix status, it would be enough. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Ignite docker container not able to join in cluster

Hi, You configured external public EC interface address (34.241...), but it should be internal: 172... Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

RE: Ignite opens/close 5000 sockets in every 5mins after NODE_FAILED event

Hi, This thread dump is absolutely fine, you confused socket state and java thread state. These two things are absolutely unrelated. There should not be so many socket connections (TIME_WAIT means that socket already closed and waiting for last packages) for three nodes. Could you please share

Re: How to use Affinity Function to Map a set of Keys to a particular node in a cluster?

Hi, I totally agree with Val that implementing own AffinityFunction is quite complex way. Requirement that you described is named affinity co-location as I wrote before. Let me explain in more details what to do and what are the drawbacks. 1. Use use @AffinityKeyMapped for all your keys. For

RE: Ignite Node failure - Node out of topology (SEGMENTED)

Hi Naresh, Recommendation will be the same: increase failureDetectionTimeout unless nodes stop segmenting or use gdb (or remove "live" option from jmap command to skip full GC). Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: And again... Failed to get page IO instance (page content is corrupted)

It would be better to upgrade to 2.5, where it is fixed. But if you want to overcome this issue in your's version, you need to add ignite-indexing dependency to your classpath and configure SQL indexes. For example [1], just modify it to work with Spring in XML:

Re: Local peek from client on a server node in a cluster

Hi, localPeek must be called on local node. I fyou want to do that from client, you have to execute a task [1] targeting on server node. But to list all entries ScanQuery is designed for [2]. You may run it via compute task from client with setLocal() flag set to true. [1]

Re: Text Query via SQL or REST API?

Hi, REST API does not have such option, but you can write your own compute task (that uses Java API) and call it from REST [1]. It's not possible to use Lucene search from SQL interfaces. To use full text search you need to annotate fields with @QueryTextField [2] and add to indexed types [3].

Re: "WAL segment tail is reached", Is it a problem ?

Hi Mikael! Don't worry about this message and you may just ignore it. It's absolutely OK and means that WAL was read fully. The question is why it's WARNING... In future releases it would be changed to INFO and message content to avoid such confusing. Thanks! -Dmitry -- Sent from:

Re: Off-heap eviction configuration

Hi, I see you used your data region as default and set name for it. Try to set it to DataStorageConfiguration.setDataRegionConfigurations(). Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Node pause for no obvious reason

Hi, Check system logs for that time, maybe there was some system freeze and add more information in GC logs, for example safepoints: -XX:+PrintGCApplicationStoppedTime -XX:+PrintGCApplicationConcurrentTime. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Text Query via SQL or REST API?

Jose, Unfortunately there is no other tools at the moment. But you still can contribute to Apache Ignite and implement that ticket which will persist Lucene indexes. It would be a great help! Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

<    1   2   3   >