Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 12 months ago.
Improve this question
Configured the cluster nodes as per the reference of below given link
https://pierrevillard.com/2016/08/13/apache-nifi-1-0-0-cluster-setup/
Heart beat is sent and received by the cluster master node But NiFi UI is not launching in the browser, while seeing the nifi-app log file I can see below exception what will be the root cause of the issue ?
com.sun.jersey.api.client.ClientHandlerException:
java.net.ConnectException: Connection refused: connect at
com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:155)
~[jersey-client-1.19.jar:1.19] at
com.sun.jersey.api.client.Client.handle(Client.java:652)
~[jersey-client-1.19.jar:1.19] at
com.sun.jersey.api.client.filter.GZIPContentEncodingFilter.handle(GZIPContentEncodingFilter.java:123)
~[jersey-client-1.19.jar:1.19] at
com.sun.jersey.api.client.WebResource.handle(WebResource.java:682)
~[jersey-client-1.19.jar:1.19] at
com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74)
~[jersey-client-1.19.jar:1.19] at
com.sun.jersey.api.client.WebResource$Builder.get(WebResource.java:509)
~[jersey-client-1.19.jar:1.19]
Please upgrade to JDK 11
and Apache NiFi 1.12.1 (or wait a few weeks for 1.13)
https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html
The link you refer to is of an old beta version (so the exact cause may not be proven) however, based on this situation on a sligtly less old version:
Check that all nodes can talk to eachother
Check that all nodes can talk to themselves
Ensure there is no internal/external/localhost name inconsistency
If any of this needs to be fixed, check /etc/hosts or your DNS
Related
Closed. This question is not about programming or software development. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 10 days ago.
Improve this question
I am new to the Kubernetes echo system. I have a use case need to pull Kubelet binary version of the Cadvisor metrics data into external storage like S3, Bigquery, or ABS in Azure. Our use case wants to keep it as long-term storage and not enable the Prometheus service in the cloud provider. Is there any way to do it? Thanks!
Try standalone Cadvisor to output the metrics. However, our use case needs the binary version of Cadvisor in Kubelet.
For example, instead of curl the api server
kubectl get --raw "/api/v1/nodes/<node-name>/proxy/metrics/cadvisor"
I would like to know if the metric point can be published passively into S3 bucket.
if you want just one pod info:
You can send a proxied request to the stats summary API via the Kubernetes API server.
/api/v1/nodes/minikube/proxy/stats/summary
if you want all pod info:
use heapster
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 2 years ago.
Improve this question
I have created an Oracle cloud free always Autonomous Database.
When I'm logging into Oracle cloud apex, the following error is being raised:
ORDS was unable to make a connection to the database. This can occur if the database is unavailable, the maximum number of sessions has been reached or the pool is not correctly configured.
The connection pool named: |ocid1.tenancy.oc1..aaaaaaaatqnhiz7jytt44dhoe4g2c4pdkn5h45ujjxdmddt3dvm5sy5ad6tq-db201912301417|re| had the following error(s): Exception occurred while getting connection: oracle.ucp.UniversalConnectionPoolException: Cannot get Connection from Datasource: java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection
I can't tell for sure, but - it looks like an issue I had the other day where Apex wasn't working properly. I could log in, but everything acted very strange.
Googling around, it turned out that previous similar problems were caused by some server being shut down, and problems persisted until someone (DBA?) started it up.
Or, you might have hit the scheduled maintenance where database was really shut down.
If I were you, I'd wait a little bit (e.g. until tomorrow morning) and try again. If it still doesn't work, contact Oracle.
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Closed 8 years ago.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Improve this question
I want to point my custom domain to heroku.
My provider uses cPanel.
I have followed the instructions here.
https://devcenter.heroku.com/articles/custom-domains
And added this to my DNS Zone Editor
www.my-site.com. 14400 IN CNAME my-app.herokuapp.com
however it's been a day and my app still doesn't point to heroku.
It might be because there are several other records in the DNS
currently these are the records in my DNS.
I'm wondering what's wrong with my setup.
Do I have to remove the A record pointing to the IP address of the old server?
note: XX.XX.XX.XX = Old IP address
NAME----------------------------TTL-----------CLASS------TYPE--------RECORD
my-site.com.---------------------14400-----------IN------------A----------XX.XX.XX.XX
localhost.my-site.com.---------14400-----------IN------------A------------127.0.0.1
mail.my-site.com.---------------14400-----------IN-----------CNAME-----my-site.com
www.my-site.com.--------------14400 ------ ----IN---------- CNAME-----my-app.herokuapp.com
ftp.my-site.com.---------------- 14400------------IN----------CNAME-----my-site.com
webdisk.my-site.com.----------14400----------- IN----------A-------------XX.XX.XX.XX
autodiscover.my-site.com.--- 14400------------IN----------A-------------XX.XX.XX.XX
autoconfig.my-site.com.------14400------------ IN----------A-------------XX.XX.XX.XX
FIX: I fixed the problem by removing the A record pointing to the old server. Then it now points to my herokuapp. I tried to put the old A record back on and it still works now (don't know why) maybe it's a conflict on the provider's side
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 8 years ago.
Improve this question
I have some how lost my Security Logs prior to today 01:57:11 pm. The file size I had assigned to Security Logs was 160MB. Today (maybe due to virus) I have 273,692 new logs in just few hours so all previous logs are lost. The policy I set was to overwrite oldest logs if file size exceeded. I saved them as csv file and the .csv file size is about 150MB. and the logs count upto 273694
In C:\Windows\System32\winevt\Logs Security has 160MB.
I have attached the picture for reference. All I need is: Logon logs on this computer from 12 hours prior to the last Security event log time.
Can anyone help me how to resolve this problem.
Thanks
I checked the logon Group Policy event logs. From that i was able to see missing users on whom the logon group policy was applied to.
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 9 years ago.
Improve this question
Well, I know absolutely nothing about the subject, so I really need help.
I currently have a website running on google app-engine (Java) and I can't get it to what I want because of app engine's limitations (no full text search mainly). The traffic is low, never reached 15% of the free quota (around 1500 daily pageviews).
I also have 3 sites in drupal hosted in a shared hosting service, and this is giving me problems, because the server speed is awful. The sites are VERY low trafic, but load times are bad, and I might need to add more sites for some clients, so this will only get worse.
So, i'm planning to move all that to VPS. The question is, can I have 2 http servers running in the same VPS? because I will need Apache-php-drupal server and a java server (tomcat?).
I have really no idea on this, so any tip will be very helpful to me.
Thanks!
Yes you can. Your httpd and tomcat will be running on different ports on the same server
Some of the choices you have are
Forward a virtual directory of your httpd to the tomcat server (if you use one domain name)
Use URL based rules to forward the requests from the java app domain to the tomcat server