262 questions
Score of 0
0 answers
179 views
Excecive memory usage after changing Coherence configuration
We changed the Coherence cache from "replicated" to "near-distributed-persistent", but now the servers get overloaded.
This is the current configuration:
<?xml version='1.0'?>...
Score of 0
1 answer
205 views
oracle coherence client throw pof related error "unknown type: coherence.util.UUID"
I have a task which involves connecting to a remote coherence cluster and retrieve the metrics info of objects in its caches.
I succeeded in establishing the connection, and correctly retrieve the ...
Score of 1
1 answer
45 views
XA Transaction support in Coherence CE
We have been using XA transactions in Coherence Enterprise Edition. But for the Coherence Community edition (Coherence CE), we don't see a document regarding XA transaction support. Does Coherence CE ...
Score of 0
1 answer
2519 views
Can not connect Java client to Remote Coherence Cluster Cache
I'm using coherence cluster as remote cache servers (run with Weblogic 12.2.1.3.0) and trying connect from Java application as clients. But I faced error exception while try to connect to Coherence ...
Score of 1
1 answer
237 views
Coherence*Extend connection exception handling
I have cache serve use Coherence CE 14.1.1 with extends client support
client use hibernate 5.2.17 with L2 coherence 14.1.1 cache
How to handle connection failure between client and cache server so
...
Score of 0
1 answer
830 views
Spring Boot application cannot join Coherence cluster on server: Join request was aborted
I have developed a small REST API application with Spring Boot after another sample application with classic Spring XML configuration. It imports context from a library with a Coherence cache set up.
...
Score of 0
1 answer
531 views
How is replication handled in oracle coherence distributed caching if a member node goes down?
I have been trying to understand how replication is handled in oracle coherence distributed caching if a member node goes down.
Say, my coherence cluster has 3 nodes, A, B, and C. As per my ...
Score of 0
2 answers
1126 views
Do standalone applications not need an application server to run?
I am working on a standalone (non web) multi-threading trading application. It is started every night at 11 pm using a start script. We do not use an application server to deploy this application. We ...
Score of 1
1 answer
412 views
How is data consistency handled in disturbed caching using Oracle coherence where each cluster node is responsible only for a piece of data?
How is data consistency handled in the distributed cache using Oracle coherence where each cluster node is responsible only for a piece of data?
I also have confusion about below
Are cluster nodes on ...
Score of 0
0 answers
3567 views
How to resolve error code 73 for Oracle WLS/Coherence patching?
I'm trying to fix security vulnerabilities for Oracle Weblogic on Windows systems by applying the recommended patch file. However, many systems I am updating are rejecting the recommended patch - ...
Score of 0
1 answer
83 views
What is the OracleCoherence library for .Net Core?
There is OracleCoherence.dll v12.2.1.3 for .Net Framework.
What is the equivalent OracleCoherence package for target framework .Net Core 3.1
Score of 0
1 answer
1646 views
Error in Oracle Coherence - "no storage-enabled nodes exist for service partitionedcache" while using Cohql in production
I am using Oracle Coherence in PartitionedCache mode. I am loading data to cache through my applications. For checking and monitoring purpose, I want to use Cohql in Production environment to view ...
Score of 0
1 answer
699 views
Fetching all keys from Partitioned Coherent Cache
I am doing a project and my requirement is to basically implement a Coherence Cache Dashboard. The basic idea is to fetch all the keys stored in the Coherent Cache. Is there a command or any other way ...
Score of 1
0 answers
201 views
Sporadic long ParNew GC, duration in vmop GenCollectForAllocation
We run Oracle Coherence in
Java HotSpot(TM) 64-Bit Server VM (25.92-b14) for linux-amd64 JRE (1.8.0_92-b14)
It triggers few full GC but many minor GC, most of them below 20 milliseconds. Very ...
Score of 0
1 answer
562 views
Cohql - apply filter for value which is inside map or list
I am using cohql for querying cache. I have one cached object which has a Hashmap as a property. Now when get a cache using get(key) and get NamedCache object.
I want to apply filter based on some ...
Score of 0
0 answers
1296 views
com.tangosol.net.RequestPolicyException: No storage-enabled nodes exist for service PartitionedCache
When deploying my project I get the following error. Despite the error, the project is deployed and running. But in several screens I get same error and can not use these screens.
My web application ...
Score of 1
0 answers
182 views
how to Serialize Enumeration in Coherence
I am using coherence as a cache system with weblogic appserver. I have a class as below which contains two fields:
package com.org.cusomer;
public class OrderDetail {
private String customerName;...
Score of 1
1 answer
258 views
Is there a plan for coherence to support .net core projects?
I am creating a .Net core class library which I plan to publish as a Nuget package. As part of the requirement, I need to access a Oracle Coherence cache data source. Now Coherence dll doesn't seem to ...
Score of 0
1 answer
720 views
Springboot application does not join coherence cluster while connected to the network via VPN
I have a J2EE webapp running on oracle weblogic server and uses oracle coherence cache. There are a few springboot microservices running parallel and leverages coherence. When connected to the network ...
Score of 0
2 answers
231 views
Is there in Hazelcast a configuration equivalent to Coherence tangosol.coherence.distributed.localstorage configuration?
Currently, my application runs in a cluster using with Coherence as datagrid and it is configured so that only a few nodes have local partition enabled. It is done by setting tangosol.coherence....
Score of 0
1 answer
105 views
Optimizing events processing
I'm using Oracle' Coherence cache in my java server component.
I'm subscribing and listening to cache change events using following event handlers:
public void entryUpdated(MapEvent mapEvent)
...
Score of 0
1 answer
428 views
Error in Coherence I am getting error in oracle coherence like "unable to convert type -28 to a Collection type
I am getting error in oracle coherence like "unable to convert type -28 to a Collection type" within the application when I refresh current cache
Score of 1
1 answer
4871 views
java.lang.NoClassDefFoundError: Lorg/sonatype/plexus/build/incremental/BuildContext
I'm using maven-3.6.0 and using the Oracle's gar-maven-plugin in my pom file to package my project in to a GAR (which is Oracle coherence specific) and in process of doing so, the "mvn package" ...
Score of 0
1 answer
489 views
Getting error on running multicast test using Coherence jar
I am running multicast test on my computer to check if it can exchange packets with other nodes running at my workplace. I am connected thru vpn to workplace network. Within workplace test runs fine ...
Score of 0
1 answer
559 views
calculate coherence cache high-units
How to decide the high-units number for the front & back scheme for near cache?
For example, we will have 100 000 key/value pairs
<near-scheme>
<front-scheme>
<high-units>...
Score of 1
1 answer
47 views
Random Key Fetch In Coherence Cache
I have a coherence cache which is access by 30 nodes.
Is there any method available ,which can give a random key?
Same key should not pull by other node.
Score of 0
1 answer
640 views
Error is setting Cacehs Configuration for Oracle Coherence
I am having following exception while trying to running oracle coherence project.
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl....
Score of -1
1 answer
807 views
Hazelcast get all by partion key
i use hazelcast. There is an IMap with PartitionAware keys.
Is it possible to usw these key to receive all values of an partition?
With respect to this example:
https://github.com/hazelcast/hazelcast-...
Score of 0
1 answer
718 views
Hazelcast equcalent for Coherence local cache
Actualy we are migrating from Coherence to Hazelcast.
In Coherence we use a local cache like this:
<cache-mapping>
<cache-name>INFOHUB_PROGNOSE_DATENSATZ_LOCAL</cache-name&...
Score of 0
1 answer
220 views
Programmatically determine Coherence master member
I need to run a piece of my java code by only one Coherence cluster member. So, I chose the master member for this. Is there an API to check out whether the current member is the master coordinator ...
Score of 0
0 answers
306 views
Coherence Cache invalid schema
I have this error in my application logs.
Coherence Warning "this document does not refer to any schema definition and has not been validated."
Has anybody seen this before? or Know what is means? ...
Score of 0
1 answer
57 views
Coherance Rest API with encoding data
I'm new to oracle coherence and i just want to know are there any possibility to use PUT method and save the data in encoded way and decode the data when retrieve using Coherence API.Sample will be ...
Score of 0
1 answer
456 views
Applying filter on coherence cache object
I've a System.Linq.Expression object whose value is:
((FieldA == "Value1") && (FieldB == "ValueB"))
I need to be apply this expression on top a coherence cache object and return the filtered ...
Score of 1
1 answer
1552 views
Coherence : weblogic.application.ModuleException: No storage-enabled nodes exist for service DistributedSessions
I am trying to use Coherence server (separate from my client to store session data) for my weblogic server (client). I'm getting the error like
weblogic.application.ModuleException: No storage-...
Score of -1
1 answer
346 views
Performance issue in oracle coherence cache using LikeFilter wildcard search
I have implemented wildcard search using oracle coherence API. When I execute the search on string fields(four fields) using
1) "LikeFilter" with "fIgnoreCase" as true and
2) search text is % ...
Score of 1
2 answers
110 views
Can Interface be used as key in Coherence Cache?
I have 2 different types of keys:
interface Key extends Serializable {
String getName();
}
class KeyA implements Key {
private String name;
private int fieldA;
}
class KeyB implements ...
Score of 0
1 answer
309 views
Issue with synching up coherence cache across servers
I've a .net web application(A) hosted on server X that subscribes to coherence cache exposed by another .net application(B) hosted on server Y.
So ideally, at any point in time, cache in A and cache ...
Score of 2
0 answers
153 views
Coherence : How to get backing map in Custom Eviction Policy implementation
I am implementing custom eviction policy using below reference but the problem is I need to know what is the backing cache name so that I can get CacheLoader reference. is there a way to get the ...
Score of 0
0 answers
2247 views
SpringBoot and setting system properties
I develop SpringBoot app that conntects to Oracle Coherence cluster. App, as coherence node need some JVM properties to connect to cluster. I wanted to set this properties (taken from properties file) ...
Score of 2
1 answer
543 views
Coherence :Issue while evicting key from a cache using Entry Processor
I am trying to evict cache key using EvictProcessor, Does anybody know what this error means? I am getting this error with Coherence 3.7 while this code was working with Coherence 3.5.
Error:
The ...
Score of 3
0 answers
62 views
XA Transactions Support for Coherence*Extend clients
I would like to wrap my Coherence cache update calls into transactions using the Coherence Resource Adapter to have full XA support. But it seems this feature is not applicable to Coherence*Extend ...
Score of 1
1 answer
214 views
Oracle Coherence : Transaction Management between two Cache
I am new in Oracle Coherence, I need to add functionality in my sample project which will enable transaction management between two Cache.
As we would getting the transaction object from NamedCache, ...
Score of 0
2 answers
210 views
Maven - Missing archetype in STS (Eclipse) for Oracle Coherence
I am trying to follow this tutorial to develop an Oracle Coherence project in Maven:
https://docs.oracle.com/middleware/1212/core/MAVEN/coherence_project.htm#MAVEN8911
I have installed in my Spring ...
Score of 0
1 answer
1472 views
ways to connect to coherence cluster
I made simple J2SE App join cluster with running coherence.cmd without running cache-server.cmd and I run same App with running both coherence.cmd and cache-server.cmd and this joining the cluster, ...
Score of 1
1 answer
553 views
Oracle Coherence from Node.js
All,
We are trying to reuse oracle coherence from our node.js app. From Oracle client documentation, clients are available for c++,java and .net. i donot see for node.js specifically. Any inputs would ...
Score of 0
1 answer
141 views
How to make Erase operations asynchronous for Coherence Write-Behind configuration?
I just noticed that delete from persistence storage (com.tangosol.net.cache.CacheStore#erase) operations could not be postponed with the Oracle Coherence Write-Behind configuration, only inserts and ...
Score of 0
1 answer
454 views
How to get Oracle Coherence Clusters synchronized?
I'm looking for an option to have my cache data being replicated and synchronized across multiple Oracle Coherence clusters.
Unfortunately, I have no chance to upgrade a Java version I'm currently ...
Score of 1
1 answer
312 views
How to update values of HashMap fields of objects cached in Coherence?
There is a java bean with following Map field:
private Map<String, Long> items;
public Map<String, Long> getItems() {
return items;
}
public void setItems(Map<String, Long> ...
Score of 0
1 answer
273 views
Hot-reload coherence cache-config.xml
Is there any way to reload Oracle Coherence cache-config.xml (for example : simple-cache-store-config.xml) without restarting node ?
More precise task - is to modify entry's expiration time "on the ...
Score of 0
1 answer
183 views
Can we use Managed Coherence Servers (MCS) feature with single Weblogic cluster to deploy application and coherence GAR?
We have a Weblogic cluster with set of managed servers where we have already deployed our enterprise application which heavily involved in database transactions. Recently we have migrated to Weblogic ...