# Cluster **URL:** https://community.neo4j.com/c/neo4j-graph-platform/cluster/84.md?page=2 [Latest](https://community.neo4j.com/latest.md) · [Categories](https://community.neo4j.com/categories.md) · [Tags](https://community.neo4j.com/tags.md) **Page:** 3 --- ## [Failed to obtain connection towards write server but only CORE nodes](https://community.neo4j.com/t/failed-to-obtain-connection-towards-write-server-but-only-core-nodes/27549)
**Author:** [@danjou.philippe](https://community.neo4j.com/u/danjou.philippe)\ **Replies:** 3\ **Last updated:** [October 25, 2020, 9:06am UTC](https://community.neo4j.com/t/failed-to-obtain-connection-towards-write-server-but-only-core-nodes/27549 "2020-10-25T09:06:03Z")
So after issues I finally got a 3 node causal cluster v 4.1.3 but I can't execute any commands on it. I always get: Failed to obtain connection towards write server. Known routing table is: RoutingTable\[database=neo4j, … --- ## [Causal Cluster Performance Impact](https://community.neo4j.com/t/causal-cluster-performance-impact/14314)
**Author:** [@sbis](https://community.neo4j.com/u/sbis)\ **Replies:** 3\ **Last updated:** [October 18, 2020, 1:13pm UTC](https://community.neo4j.com/t/causal-cluster-performance-impact/14314 "2020-10-18T13:13:53Z")
Hi, I have a causal cluster and a HA instance of neo4j where I am trying to load huge datasets (probably 1 TB of data) and trying to identify or compare the metrics getting for loading data and for some HOP queries. H… --- ## [Install GDS plugin on Neo4j Causal Cluster](https://community.neo4j.com/t/install-gds-plugin-on-neo4j-causal-cluster/26842)
**Author:** [@dan3](https://community.neo4j.com/u/dan3)\ **Replies:** 1\ **Last updated:** [October 8, 2020, 9:19pm UTC](https://community.neo4j.com/t/install-gds-plugin-on-neo4j-causal-cluster/26842 "2020-10-08T21:19:41Z")
Hi, We are trying to install the GDS plugin on our cluster - and I am not sure I understood the instructions: Should we install the plugin only on the Read replica servers ? or should we install it on the core servers… --- ## [Error while Set up a local Causal Cluster](https://community.neo4j.com/t/error-while-set-up-a-local-causal-cluster/19269)
**Author:** [@saurabh](https://community.neo4j.com/u/saurabh)\ **Replies:** 3\ **Last updated:** [September 22, 2020, 12:33pm UTC](https://community.neo4j.com/t/error-while-set-up-a-local-causal-cluster/19269 "2020-09-22T12:33:27Z")
I am trying to setup Neo4j Cluster into AWS using https://neo4j.com/docs/operations-manual/current/tutorial/local-causal-cluster . But I have received below error : ==\> /opt/neo4j-cluster/core-03/logs/neo4j.log \<== 20… --- ## [WebSocket Connection Issue](https://community.neo4j.com/t/websocket-connection-issue/24515)
**Author:** [@rehan.ravian](https://community.neo4j.com/u/rehan.ravian)\ **Replies:** 0\ **Last updated:** [September 2, 2020, 4:08pm UTC](https://community.neo4j.com/t/websocket-connection-issue/24515 "2020-09-02T16:08:40Z")
Hi, I am facing issue when I am trying to query on my neo4j database. I have deployed Neo4j on causal cluster of Google Cloud Platform. Below are my configuration in Neo4j.conf File. Regards, Rehan Niaz --- ## [Seeding a new casual cluster from a backup generated from a previous casual cluster](https://community.neo4j.com/t/seeding-a-new-casual-cluster-from-a-backup-generated-from-a-previous-casual-cluster/24047)
**Author:** [@rojh](https://community.neo4j.com/u/rojh)\ **Replies:** 0\ **Last updated:** [August 25, 2020, 5:49pm UTC](https://community.neo4j.com/t/seeding-a-new-casual-cluster-from-a-backup-generated-from-a-previous-casual-cluster/24047 "2020-08-25T17:49:15Z")
I have a casual cluster running in GKE that was set up via the Marketplace. I've also setup the backup and restore processes as explained here How to backup Neo4j Running in Kubernetes & here How to Restore Neo4j Backup… --- ## [Cross Geo Multi Master support](https://community.neo4j.com/t/cross-geo-multi-master-support/23454)
**Author:** [@kiranu](https://community.neo4j.com/u/kiranu)\ **Replies:** 1\ **Last updated:** [August 15, 2020, 10:03am UTC](https://community.neo4j.com/t/cross-geo-multi-master-support/23454 "2020-08-15T10:03:40Z")
Team, Sorry if this is being answered before, I'm pretty new to Neo4j and I did a bit of research and couldn't find a proper response hence posting it here. We are in the process of choosing a graph database for one of… --- ## [Memory and cpu restrictions](https://community.neo4j.com/t/memory-and-cpu-restrictions/22615)
**Author:** [@djole.nikolic.priv](https://community.neo4j.com/u/djole.nikolic.priv)\ **Replies:** 3\ **Last updated:** [July 30, 2020, 1:00pm UTC](https://community.neo4j.com/t/memory-and-cpu-restrictions/22615 "2020-07-30T13:00:19Z")
Hello, With neo4j 4, do I have memory and cpu restrictions in community edition and can I use it freely in kubernetes? I found aa bunch of blogs, a lot say different things so I just want to check it out :slight\_smile: … --- ## [Neo4j enterprise local cluster setup](https://community.neo4j.com/t/neo4j-enterprise-local-cluster-setup/22146)
**Author:** [@jeetugangwar11](https://community.neo4j.com/u/jeetugangwar11)\ **Replies:** 0\ **Last updated:** [July 22, 2020, 1:35pm UTC](https://community.neo4j.com/t/neo4j-enterprise-local-cluster-setup/22146 "2020-07-22T13:35:39Z")
Hi, I'm trying to create 3 node neo4j cluster in windows machine. I did all the configuration but while starting server, I'm getting below errors: 2020-07-22 03:16:45.193+0000 INFO Waiting for a total of 3 core membe… --- ## [Copy a DATABASE on a causal cluster](https://community.neo4j.com/t/copy-a-database-on-a-causal-cluster/18566)
**Author:** [@b.buchhold](https://community.neo4j.com/u/b.buchhold)\ **Replies:** 3\ **Last updated:** [July 16, 2020, 2:50pm UTC](https://community.neo4j.com/t/copy-a-database-on-a-causal-cluster/18566 "2020-07-16T14:50:09Z")
Assume I have a 4.0 cluster with several "graphs" (cypher: "DATABASE"s). I want to create a copy of one for them for experiments that will make modifications to the graph. Initial Google searches have turned up neo4-adm… --- ## [Cluster is wrong](https://community.neo4j.com/t/cluster-is-wrong/21544)
**Author:** [@drmartiner](https://community.neo4j.com/u/drmartiner)\ **Replies:** 2\ **Last updated:** [July 14, 2020, 10:51am UTC](https://community.neo4j.com/t/cluster-is-wrong/21544 "2020-07-14T10:51:03Z")
Hello everyone, I have many problems with running simple cluster. I need to solve simple problem. I have docker-compose file: version: '3' networks: lan: services: core1: image: neo4j:4.1-enterprise netwo… --- ## [Managing Multi-DataCentre(DC/DR) cluster environment in neo4j 3.5.5](https://community.neo4j.com/t/managing-multi-datacentre-dc-dr-cluster-environment-in-neo4j-3-5-5/19421)
**Author:** [@danny.oberoi](https://community.neo4j.com/u/danny.oberoi)\ **Replies:** 2\ **Last updated:** [June 2, 2020, 12:05pm UTC](https://community.neo4j.com/t/managing-multi-datacentre-dc-dr-cluster-environment-in-neo4j-3-5-5/19421 "2020-06-02T12:05:34Z")
Hi I have 6 node multi-dataCentre cluster, all are CORE nodes. 3 nodes are in US(called DC site) and 3 nodes are in ASIA (called DR site). I have given following in neo4j.conf file : dbms.mode=CORE causal\_clusterin… --- ## [Understanding cluster load balancing and high availability](https://community.neo4j.com/t/understanding-cluster-load-balancing-and-high-availability/1034)
**Author:** [@henry](https://community.neo4j.com/u/henry)\ **Replies:** 13\ **Last updated:** [May 15, 2020, 5:23am UTC](https://community.neo4j.com/t/understanding-cluster-load-balancing-and-high-availability/1034 "2020-05-15T05:23:28Z")
Hello. I set a 3 core cluster in AWS. I'm trying to understand how to properly set up the cluster. Are all cores capable of read and write or do I set up which does which in the config? I understand that the bolt+routin… --- ## [Problem in using 3 follower nodes of cluster](https://community.neo4j.com/t/problem-in-using-3-follower-nodes-of-cluster/18638)
**Author:** [@shubham](https://community.neo4j.com/u/shubham)\ **Replies:** 1\ **Last updated:** [May 14, 2020, 8:15pm UTC](https://community.neo4j.com/t/problem-in-using-3-follower-nodes-of-cluster/18638 "2020-05-14T20:15:25Z")
hii guys , we have a neo4j enterprise edition running on 4 node cluster each having 16GegaBytes of RAM , there is one node with leader role and 3 other are follower role ,now i increased the heap size to 16GB to impro… --- ## [Unable to change password on new cluster setup](https://community.neo4j.com/t/unable-to-change-password-on-new-cluster-setup/18325)
**Author:** [@per.frykhammar](https://community.neo4j.com/u/per.frykhammar)\ **Replies:** 4\ **Last updated:** [May 12, 2020, 7:39pm UTC](https://community.neo4j.com/t/unable-to-change-password-on-new-cluster-setup/18325 "2020-05-12T19:39:00Z")
I'm setting up a cluster on AWS using the latest 4.0.3 AMI. The cluster is spread between different availability zones, but in the same VPC and in the same security group. The security group port 5000,6000,7000,7687,747… --- ## [Make a copy of the neo4j-enterprise-4.0.4 directory - linux Ubuntu](https://community.neo4j.com/t/make-a-copy-of-the-neo4j-enterprise-4-0-4-directory-linux-ubuntu/18448)
**Author:** [@oraiches](https://community.neo4j.com/u/oraiches)\ **Replies:** 0\ **Last updated:** [May 11, 2020, 2:49pm UTC](https://community.neo4j.com/t/make-a-copy-of-the-neo4j-enterprise-4-0-4-directory-linux-ubuntu/18448 "2020-05-11T14:49:51Z")
Hi, i'm trying to configure a cluster in neo4j according to the manual. The first step is "Make a copy of the neo4j-enterprise-4.0.4 directory" yet I cannot find any information about where is this directory in my system… --- ## [readTransaction() not working in GitLab CI](https://community.neo4j.com/t/readtransaction-not-working-in-gitlab-ci/18316)
**Author:** [@gspitzer](https://community.neo4j.com/u/gspitzer)\ **Replies:** 2\ **Last updated:** [May 8, 2020, 6:04pm UTC](https://community.neo4j.com/t/readtransaction-not-working-in-gitlab-ci/18316 "2020-05-08T18:04:59Z")
I'm not sure, if this is the right place to ask, but I am running my unit tests in GitLab CI against a Neo4j-Cluster of 3 core servers. I am using the JavaScript driver and neo4j 3.5.12-enterprise. Most of the transactio… --- ## [Routing table does not show any READ roles](https://community.neo4j.com/t/routing-table-does-not-show-any-read-roles/18232)
**Author:** [@jyoti.singh](https://community.neo4j.com/u/jyoti.singh)\ **Replies:** 1\ **Last updated:** [May 7, 2020, 10:36am UTC](https://community.neo4j.com/t/routing-table-does-not-show-any-read-roles/18232 "2020-05-07T10:36:35Z")
I have a 3 node CORE only neo4j (4.0.2) cluster setup in Azure Kubernetes service. I want to use bolt+routing/neo4j for writing into the cluster from another pod within the same AKS. But I seem to be getting this error … --- ## [Neo4j cluster unable to connect via public ip](https://community.neo4j.com/t/neo4j-cluster-unable-to-connect-via-public-ip/17280)
**Author:** [@t11](https://community.neo4j.com/u/t11)\ **Replies:** 1\ **Last updated:** [May 3, 2020, 11:00am UTC](https://community.neo4j.com/t/neo4j-cluster-unable-to-connect-via-public-ip/17280 "2020-05-03T11:00:49Z")
hello everyone . i just have configured casual cluster as per given instruction in this so what I exactly want to is i have configured private ips to communicate core with each other and they successfully configured . … --- ## [How data is stored across servers?](https://community.neo4j.com/t/how-data-is-stored-across-servers/14793)
**Author:** [@harshit\_cr07](https://community.neo4j.com/u/harshit_cr07)\ **Replies:** 15\ **Last updated:** [March 11, 2020, 11:54am UTC](https://community.neo4j.com/t/how-data-is-stored-across-servers/14793 "2020-03-11T11:54:30Z")
Hi, I wanted to know that whether data is stored at a single place and shared by both core servers and read replicas or like both servers contain whole data or if both stores some metadata and actual data is stored some… --- ## [Neo4j cluster discovery failed using NodePort service in k8s](https://community.neo4j.com/t/neo4j-cluster-discovery-failed-using-nodeport-service-in-k8s/15604)
**Author:** [@restlesswind](https://community.neo4j.com/u/restlesswind)\ **Replies:** 0\ **Last updated:** [March 10, 2020, 6:46pm UTC](https://community.neo4j.com/t/neo4j-cluster-discovery-failed-using-nodeport-service-in-k8s/15604 "2020-03-10T18:46:13Z")
I have a 3-node kubernetes cluster where I deploy a 3-core neo4j cluster using the public neo4j chart: charts/stable/neo4j at master · helm/charts · GitHub The 3-core neo would come up correctly using the DNS discovery … --- ## [How cluster login page show public ip](https://community.neo4j.com/t/how-cluster-login-page-show-public-ip/15167)
**Author:** [@lovelin9](https://community.neo4j.com/u/lovelin9)\ **Replies:** 2\ **Last updated:** [February 29, 2020, 1:18am UTC](https://community.neo4j.com/t/how-cluster-login-page-show-public-ip/15167 "2020-02-29T01:18:46Z")
Hi,guys I run a cluster with private ip and login page address show the private ip, how it show as public ip. --- ## [Store copy failed due to store ID mismatch](https://community.neo4j.com/t/store-copy-failed-due-to-store-id-mismatch/3068)
**Author:** [@oadegbite](https://community.neo4j.com/u/oadegbite)\ **Replies:** 5\ **Last updated:** [February 21, 2020, 5:13pm UTC](https://community.neo4j.com/t/store-copy-failed-due-to-store-id-mismatch/3068 "2020-02-21T17:13:29Z")
I'm trying to start a cluster with 2 servers on the same network both are running Neo4j enterprise 3.4.10 on Ubuntu Server 16.04 LTS. I got a test cluster working between the two servers then did neo4j-admin unbind to t… --- ## [Changing number of core servers required to acknowledge](https://community.neo4j.com/t/changing-number-of-core-servers-required-to-acknowledge/14663)
**Author:** [@harshit\_cr07](https://community.neo4j.com/u/harshit_cr07)\ **Replies:** 1\ **Last updated:** [February 13, 2020, 8:00am UTC](https://community.neo4j.com/t/changing-number-of-core-servers-required-to-acknowledge/14663 "2020-02-13T08:00:03Z")
Hi, I wanted to know that is it possible to reduce the number of core servers required to acknowledge before committing a transaction. I know that we need N/2 +1 to acknowledge but can we increase or decrease this number… --- ## [How to upgrade a causal cluster with no downtime?](https://community.neo4j.com/t/how-to-upgrade-a-causal-cluster-with-no-downtime/14454)
**Author:** [@pierrick.ganon](https://community.neo4j.com/u/pierrick.ganon)\ **Replies:** 3\ **Last updated:** [February 6, 2020, 9:07pm UTC](https://community.neo4j.com/t/how-to-upgrade-a-causal-cluster-with-no-downtime/14454 "2020-02-06T21:07:24Z")
Hi, Is there a way to upgrade a causal cluster with a few commands without downtime? The instructions here seems extremely manual still which also still forces you to have downtime and getting the cluster to sync after… --- ## [Figure out the number of read-write nodes and read nodes required for a production](https://community.neo4j.com/t/figure-out-the-number-of-read-write-nodes-and-read-nodes-required-for-a-production/14358)
**Author:** [@sbis](https://community.neo4j.com/u/sbis)\ **Replies:** 1\ **Last updated:** [February 5, 2020, 10:18pm UTC](https://community.neo4j.com/t/figure-out-the-number-of-read-write-nodes-and-read-nodes-required-for-a-production/14358 "2020-02-05T22:18:55Z")
I have a use case to identify the number of nodes (writer and read replicas) required to set up a causal cluster based on the file size or number of nodes/relationships. Is there any way to formulate something in such a … --- ## [Cluster not processing write cypher](https://community.neo4j.com/t/cluster-not-processing-write-cypher/13694)
**Author:** [@mdfrenchman](https://community.neo4j.com/u/mdfrenchman)\ **Replies:** 4\ **Last updated:** [January 19, 2020, 6:10am UTC](https://community.neo4j.com/t/cluster-not-processing-write-cypher/13694 "2020-01-19T06:10:30Z")
We have a cluster of 3 servers (normal config, leader is read/write, 2 followers are read). We're having an issue of WRITE queries not completing, they're eventually returning an OOM exception. The cypher (with labels … --- ## [\[cluster\] enable intra cluster encryption](https://community.neo4j.com/t/cluster-enable-intra-cluster-encryption/12780)
**Author:** [@baptistegh](https://community.neo4j.com/u/baptistegh)\ **Replies:** 0\ **Last updated:** [December 12, 2019, 12:02pm UTC](https://community.neo4j.com/t/cluster-enable-intra-cluster-encryption/12780 "2019-12-12T12:02:45Z")
Hello everyone ! I’m setting up a neo4j causal cluster. For intracluster encryption, is it possible to enable client\_auth ? All certificates are in the trusted dir. When I put client\_auth=require. The nodes can’t get … --- ## [High CPU usage, AWS AMI Causal Cluster](https://community.neo4j.com/t/high-cpu-usage-aws-ami-causal-cluster/12420)
**Author:** [@darryn](https://community.neo4j.com/u/darryn)\ **Replies:** 8\ **Last updated:** [December 4, 2019, 5:29am UTC](https://community.neo4j.com/t/high-cpu-usage-aws-ami-causal-cluster/12420 "2019-12-04T05:29:24Z")
I have been using the AWS community neo4j AMI for a while now and we just finally decided it was time to move across to running with a proper cluster, we applied for the startup program and got accepted. I proceeded to … --- ## [Neo4j.conf file is missing when creating a cluster](https://community.neo4j.com/t/neo4j-conf-file-is-missing-when-creating-a-cluster/11684)
**Author:** [@VINNUSAURUS](https://community.neo4j.com/u/VINNUSAURUS)\ **Replies:** 2\ **Last updated:** [November 7, 2019, 4:52pm UTC](https://community.neo4j.com/t/neo4j-conf-file-is-missing-when-creating-a-cluster/11684 "2019-11-07T16:52:48Z")
I have created a neo4j cluster using YAML file, when run the file using docker-compose up --detach everything runs fine but the neo4j.conf file is missing. version: "3" services: core1: image:… [Previous page](https://community.neo4j.com/c/neo4j-graph-platform/cluster/84.md?page=1) [Next page](https://community.neo4j.com/c/neo4j-graph-platform/cluster/84.md?page=3)