[Strimzi] Kafka brokers won't start

[Csenge Virág Maruzsi]

I realized that my Docker's configuration must be the problem and after
reinstalling it, Strimzi works fine on my cluster too.
Thank you very much for your help!

Have a nice day,
Csenge

On Sat, Jul 27, 2019 at 10:49 PM Jakub Scholz <jakub at scholz.cz> wrote:

> I finally found some time to update my Kubernetes cluster to 1.15. So I
> tried if I can see something similar. But it seems to work fine on my
> cluster. So I'm afraid this has to be somehow related to the setup of your
> Kubernetes cluster.
>
> Thanks & Regards
> Jakub
>
> On Mon, Jul 22, 2019 at 4:23 PM Csenge Virág Maruzsi <
> csenge.maruzsi at cloudera.com> wrote:
>
>> Thank you very much for the answer and help!
>> I only asked if this has something to do with Strimzi, because before
>> installing it, I manually installed Zookeeper and Kafka brokers, and they
>> worked just fine and did not have such problem.
>> Can you maybe think of any configuration that I did but Strimzi does not
>> like?
>>
>> Thanks.
>> Csenge
>>
>> On Mon, Jul 22, 2019 at 4:15 PM Jakub Scholz <jakub at scholz.cz> wrote:
>>
>>> Honestly, I think this would be something related to your cluster.
>>> Strimzi doesn't do anything special about DNS - it just expects it to work.
>>>
>>> I didn't had time yet to update my own Kubernetes clusters to 1.15. So
>>> I'm not sure whether there are any significant changes or now with regards
>>> to DNS. I had only done some tests on Minikube with 1.15 and there it
>>> worked fine. I will try to update my big cluster to see if I have any
>>> similar issues.
>>>
>>> Thanks & Regards
>>> Jakub
>>>
>>> On Mon, Jul 22, 2019 at 3:49 PM Csenge Virág Maruzsi <
>>> csenge.maruzsi at cloudera.com> wrote:
>>>
>>>> I found out that none of the pods can resolve any kind of DNS, so we
>>>> can say that DNS does not work properly in my cluster.
>>>> Is it because of some Strimzi configuration or I did something wrong
>>>> previously?
>>>>
>>>> Thanks,
>>>> Csenge
>>>>
>>>> On Mon, Jul 22, 2019 at 2:58 PM Jakub Scholz <jakub at scholz.cz> wrote:
>>>>
>>>>> Hmm, interesting. From the logs it looks like it cannot resolve any of
>>>>> the DNS names. Does the DNS work properly in your cluster? Can you resolve
>>>>> the names of services etc. in other pods?
>>>>>
>>>>> Thanks & regards
>>>>> Jakub
>>>>>
>>>>> On Mon, Jul 22, 2019 at 2:47 PM Csenge Virág Maruzsi <
>>>>> csenge.maruzsi at cloudera.com> wrote:
>>>>>
>>>>>> Hi Jakub,
>>>>>>
>>>>>> Kubernetes version: 1.15
>>>>>> Strimzi version: 0.12.1
>>>>>> I have 1 master and 4 worker nodes with ubuntu 18.04.
>>>>>> To create the cluster I used this:
>>>>>> https://github.com/strimzi/strimzi-kafka-operator/blob/master/examples/kafka/kafka-ephemeral.yaml
>>>>>> I attached the logs.
>>>>>>
>>>>>> Thanks,
>>>>>> Csenge
>>>>>>
>>>>>> On Mon, Jul 22, 2019 at 1:54 PM Jakub Scholz <jakub at scholz.cz> wrote:
>>>>>>
>>>>>>> Hi Csenge,
>>>>>>>
>>>>>>> Could you please share more about the environment? Which version of
>>>>>>> Kubernetes are you using, which version of Strimzi are you using, the logs,
>>>>>>> the Kafka custom resource which you used to create the cluster etc.? We
>>>>>>> have this bash script in our GitHub which should be able to collect most of
>>>>>>> the logs and details for you:
>>>>>>> https://github.com/strimzi/strimzi-kafka-operator/blob/master/tools/report.sh
>>>>>>>
>>>>>>> Thanks & Regards
>>>>>>> Jakub
>>>>>>>
>>>>>>> On Mon, Jul 22, 2019 at 1:46 PM Csenge Virág Maruzsi <
>>>>>>> csenge.maruzsi at cloudera.com> wrote:
>>>>>>>
>>>>>>>> Hi all,
>>>>>>>> I am getting to know with Strimzi and reading the documentation
>>>>>>>> <https://strimzi.io/docs/latest/#kafka-connect-str>.
>>>>>>>> I deployed Cluster operator and then deployed a Kafka cluster (both
>>>>>>>> with Kubernetes).
>>>>>>>> So my problem is that after deploying the cluster, my kafka
>>>>>>>> broker's status is CrashLoopBackOff because it can not connect to the
>>>>>>>> zookeeper server.
>>>>>>>> Can you help me what I am doing wrong?
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Csenge
>>>>>>>> _______________________________________________
>>>>>>>> Strimzi mailing list
>>>>>>>> Strimzi at redhat.com
>>>>>>>> https://www.redhat.com/mailman/listinfo/strimzi
>>>>>>>>
>>>>>>>
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