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Questions tagged [kubernetes]

Kubernetes is a system for running containerized applications across multiple hosts, providing basic mechanisms for deployment, maintenance, and scaling of applications.

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Access a MySQL storage with two independent instances [closed]

I tried to deploy MySQL deployment with Kubernetes, having three replicas which are accessing the same storage(PVC). Here is the configuration apiVersion: v1 kind: PersistentVolume metadata: name: ...
Sivakajan's user avatar
1 vote
0 answers
9 views

Kubernetes: Influxdb 1.8.10 container can’t create users

I deployed on docker InfluxDB v 1.8.10 with command: docker run --name influxdb -t -e INFLUXDB_HTTP_AUTH_ENABLED=“true” -e INFLUXDB_DB=“mydatabase” -e INFLUXDB_USER=“user” -e INFLUXDB_USER_PASSWORD=“...
Marco Ferrara's user avatar
0 votes
1 answer
20 views

Kubernetes create cluster multimaster using bitnami/mariadb-galera

I'm trying to deploy mariadb-galera multimaster on kubernetes. But when I set external volume I receive this error: mkdir: cannot create directory '/bitnami/mariadb/data': Permission denied this is ...
Marco Ferrara's user avatar
0 votes
0 answers
13 views

Cassandra Reaper sidecar configuration needed/useful in Kubernetes Pod?

I am preparing to run Cassandra Reaper 3.5.0 against Cassandra 4.1.x as a sidecar in a Kubernetes Pod (in a single Cassandra cluster). The documentation for Reaper seems to imply that it is self-...
tdhso's user avatar
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0 votes
0 answers
8 views

Cassandra Reaper sidecar implications for local quorum

I am preparing to run Cassandra Reaper 3.5.0 against Cassandra 4.1.x as a sidecar in a Kubernetes Pod (in a single Cassandra cluster). Is there any potential, given that, for inconsistent data across ...
tdhso's user avatar
  • 3
0 votes
0 answers
11 views

Cassandra Reaper headless service

I am preparing to run Cassandra Reaper 3.5.0 against Cassandra 4.1.x as a sidecar in a Kubernetes Pod (in a single Cassandra cluster). The documentation for Reaper recommends a client-affiliating ...
tdhso's user avatar
  • 3
0 votes
0 answers
33 views

Pod Oracle does not start correctly

In a Kubernetes architecture context, I am dealing with a problem that I cannot explain. Here I have my configuration of a statefulset oracle : containers: - name: oracle image:...
user avatar
0 votes
1 answer
46 views

How to migrate 2 different Cassandra databases into one cluster

We have two separate Cassandra clusters, each with six nodes: Cluster A and Cluster B. Our requirement is to merge these two clusters to save costs. Because this is a critical application, we need to ...
Sai's user avatar
  • 35
1 vote
3 answers
76 views

Need a Role that can CREATE USER but not allowed to GRANT Predefined Roles in PostgreSQL <16

We are administrating DB in kubernetes to our customers. For each new cluster, we create a new user with CREATE ROLE and CREATE DB roles given to them, so that they can create their own databases and ...
imans77's user avatar
  • 111
0 votes
0 answers
113 views

MongoServerSelectionError: Client network socket disconnected before secure TLS connection was established on GKE Autopilot workload

We are in the process of migrating from CloudRun to GKE Autopilot. We have the same exact environment variables and the LoadBalancer service for the workload has the same port configuration as the ...
ift-436t's user avatar
0 votes
0 answers
55 views

Block access from pgAdmin to Postgres in kubernetes

We are trying to setup a pgAdmin but want to avoid that the root user could connect and create, update or delete anything. We have create a new readonly-user for this case and this works fine. But it ...
user6266369's user avatar
0 votes
0 answers
29 views

Cassandra's medusa backup not working. Backup job created, but status missing and medusa container logs not updated(stuck)

I am trying to create medusa backup by running below command, but it doesn't work, it only creates the medusabackup job in MedusaBackupJobs folder, but I never get the status in the medusabackup job ...
Shivi Bhatt's user avatar
0 votes
1 answer
12 views

Cloned Cassandra cluster returns gossip IllegalStateException: Attempting gossip state mutation from illegal thread: GossipTasks:1

After cloning Cassandra database from one cluster to another cluster using nodetool refresh we are seeing below errors often. This might not be related to migration but not sure. What causes this ...
Sai's user avatar
  • 35
0 votes
1 answer
34 views

MSSQL 2019 CU16 on Linux: virtual_address_space_committed_kb vs RSS

I am running SQL Server 2019 CU15 on Linux in kubernetes and trying to investigate why SQL Server pod gets killed by OOMKiller. I see some inconsistency in reporting of memory consumption. SQL Server ...
Oleg Lavrov's user avatar
1 vote
1 answer
137 views

Data inconsistent after restoring database using nodetool refresh in K8s Cassandra

ENV Details: GKE (Google Kubernetes cluster) Snitch Google cloud snitch. https://docs.datastax.com/en/cassandra-oss/3.0/cassandra/architecture/archSnitchGoogle.html 140 nodes with 4 RACKs (4 ...
Sai's user avatar
  • 35
0 votes
0 answers
339 views

Remote SQL Connection Failing due to MS SQL Server running under a domain account

I'm getting a strange issue with one Microsoft SQL Server 2016. I get the following error if the MS SQL Server runs under a domain account. Just from one Linux client, all other clients work as ...
Roelof Briers's user avatar
0 votes
1 answer
22 views

Experiencing IP conflicts restoring Cassandra DB from snapshots in GKE environment

While restoring 750TB Cassandra database using disk snapshots in GKE (google cloud K8s) environment from one namespace to another namespace we are experiencing issues with IP conflicts, to avoid the ...
Sai's user avatar
  • 35
0 votes
1 answer
478 views

PostgreSQL Resourse Limitations in Kubernetes

I run PostgreSQL 15 in Kube. So in heavy loads, when RAM usage reaches to 100% the WAL writer crushes and aborts. Because of the pid existance it never comes up again without intervention. So ideally ...
igelr's user avatar
  • 2,132
-1 votes
1 answer
61 views

How to filter a PostgreSQL database name via the kubectl command?

I'm using a kubernetes and want to filter only the sampledb on my postgreSQL. I tried to use this command: kubectl exec podname-89tq4763k23-klp83 -- bash -c "psql -U postgres --tuples-only -P ...
生きがい's user avatar
1 vote
1 answer
477 views

Why doesn't my PostgreSQL helm dependency database exist when I try to connect?

Previously when I using the Bitnami Helm chart by way of Terraform to deploy PostgreSQL, I would have a database created. Now I no longer have a database created. I'm using same connect string same ...
Evan Carroll's user avatar
  • 63.5k
0 votes
1 answer
255 views

Cassandra node fails to reconnect to the cluster on Kubernetes with Istio

I am intending to create a multi-datacenter Cassandra cluster with two datacenters distributed between two Kubernetes clusters. The cluster interconnection is configured by the means of Istio ...
Дмитро Іванов's user avatar
2 votes
0 answers
682 views

Running PostgreSQL as sidecar in Kubernetes Pod

I know there are several professional PostgreSQL Kubernetes Operators out there (crunchy, zalando, kubeDB, stackgres, percona). But my use case is small and simple. I thought about running PG in a ...
guettli's user avatar
  • 1,521
0 votes
1 answer
243 views

Can Cassandra nodes running in 2 different DCs on K8s behind NAT on private subnet form a cluster?

Is there anyway Cassandra nodes running in two different data centers behind NAT, on private subnet can form a single cluster? Use case: For an on premise Geo-Diverse setup, we needs to run Cassandra ...
Rajesh Jose's user avatar
2 votes
1 answer
300 views

Cassandra cluster still trying to reach old IP

I've seen a strange behaviour since a node decommission; regularly some Cassandra nodes start massively outputting these logs: OutboundTcpConnection.java:570 - Cannot handshake version with /10.208.58....
Aaron's user avatar
  • 4,105
0 votes
1 answer
638 views

MongoDB 4.4.3 ignoring `wiredTigerCacheSizeGB` limit in Kubernetes

We currently have the memory limit set up in Kubernetes for mongo using the below: - name: MONGODB_EXTRA_FLAGS value: --wiredTigerCacheSizeGB=6 And we verified that it's been parsed with ...
Pat's user avatar
  • 117
1 vote
0 answers
266 views

Sql profiler - result in profiler : "Audit Login" and immediately after "Audit Logout" without running the query

I have a service running on an Azure kubernetes (AKS) that is connecting to a DB running on a Virtual Machine (VM) on Azure. There is a failure to run the service. The result of SQL Profiler is: ...
dexon's user avatar
  • 47
0 votes
1 answer
88 views

How to configure mysql group replication with different ports?

I have a k8s cluster and each mysql instance is well connected together! But I have another mysql server outside the cluster! Each mysql inside the cluster has a default mysql port, which is 3306 and ...
Hasan Parasteh's user avatar
1 vote
1 answer
1k views

Executing Cassandra pod CQL queries from shell script, using shell variables with kubectl exec

I have a repetitive task that I do while testing which entails connecting to a cassandra pod and running a couple of CQL queries. Here's the "manual" approach: On cluster controller node, I ...
James's user avatar
  • 113
0 votes
1 answer
159 views

MySQL InnoDB Cluster config - configure node address

I first asked this question on Stack Overflow but I woke up this morning to the realization that it belongs over here. I'm setting up an InnoDB Cluster using mysqlsh. This is in Kubernetes, but I ...
Jerry's user avatar
  • 101
0 votes
1 answer
722 views

Helm Install MySQL InnoDB Cluster: tls.routerCertAndPKsecretName: secret 'my-mysql-innodbcluster-router-tls' not found in namespace 'default'

When I run the command from ArtifactHUB to install the mysql-innodbcluster helm install my-mysql-innodbcluster mysql-operator/mysql-innodbcluster --version 2.0.4 I get the following error, Error: ...
Evan Carroll's user avatar
  • 63.5k
0 votes
1 answer
111 views

MySQL Operator: Error: INSTALLATION FAILED: The operator cannot be installed in the 'default' namespace

I'm following the instructions on ArtifactHub for mysql-operator/mysql-operator. helm install my-mysql-operator mysql-operator/mysql-operator --version 2.0.4 But I'm getting the error Error: ...
Evan Carroll's user avatar
  • 63.5k