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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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 ...
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Cassandra error: ERROR 16:27:50 java.lang.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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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148
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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 ...
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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 ...
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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 ...
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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 ...
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MSSQL error when creating publication
I'm using one MSSQL server (SQL server 2019 on Linux, to be precise, on Kubernetes) as a distributor and publisher. I tried to configure it as a transactional publication using SSMS.
The problem that ...
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Cassandra pod uses more heap memory than configured limit
I set up a Cassandra pod on Kubernetes. I noticed that the following environment variables are ignored by the image, since it goes way beyond 512M memory usage:
env:
- name: MAX_HEAP_SIZE
value: ...
- 101
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What database my applications will use if I have a locally installed database beside it's pod running on local Kubernetes?
I have installed mysql on my Ubuntu machine. I also have a locally running Kubernetes and deployed a mysql deployment on Kubernetes and can reach to that using kubectl exec -it mysql-b4769786-5hf4m sh ...
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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 ...
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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 ...
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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....
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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 ...
- 117
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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:
...
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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 ...
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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 ...
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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 ...
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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: ...
- 62.1k
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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: ...
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