I need to schedule the JDBC consumer job to run everyday morning at 5 am, as far as I know, I can make the job run at 5 am when I start the job at 5 am and put 24 hours in the query interval.
But I need to schedule the first instance to start at 5 am without starting it manually (i'm lazy to wake up at 5 am :P) Is there a way to achieve this?
(Copying my answer from Ask StreamSets)
There is no built-in scheduler in SDC, but you could use cron and the StreamSets CLI to start the pipeline.
Related
Lets say we have kerberos secured Hadoop Cluster. ( For example Kdc is configured to provide kerberos tickets with validity of 2 hour and renewal period of 3 hours after this so total 5 hours. )
Cluster also includes tools like Hive and Pig.
With respect to given scenario can any one help me understand the behaviors in each cases mentioned below(Note: Job: Map-Reduce Job, Job Submitted Through Hive Or Pig)
Lets say job takes 4 hours to run, I am triggering the job, for next two hours user who triggered the job has valid ticket, job runs fine after two hours Job is out of valid kerberos ticket but it has renewal period left, Will job renew it? Will it stop execution? Is there any property to enable or disable such automatically renewal behavior.
Lets say job takes 10 hours to run, I am trigerring the job, for next two hours user who triggered the job has valid ticket, lets say this time after two hours we don't have renewal period left, Will Job continue? Will Job fail with authentication error. Will Job request for new ticket?
Let say Job takes 10 hours to run And Kdc is configured to provide 2 hours ticket. we setup a cron job which runs at every 6 hours and gets a new ticket(Technically User will not run out of valid kerberos ticket any time), Will new generated ticket cause any problem of the running job through old ticket?
I want to understand working behavior of this Jobs as well as tools like kerberos, hive and pig.
so I have a job that should run every minute. But one of the rules in my hosting provider is "Cron job should run at least once every 15 minutes". My question is does my task scheduler still running within the next 15 minutes? if no, any ideas to make it runs every minute? thanks
Requirement:
A Spring batch (designed using Spring Boot) job is designed to take data from a database every 5 hours and is scheduled to run accordingly. An added requirement is When the job will run for the very 1st time, it should fetch data of 4 months from the database.
Problem:
How to know that the Spring Batch job is running for the 1st time. Is there any parameter in Spring Batch that can help us know whether its running for the 1st time.
As far as I'm aware Spring scheduler does not have a way to identify first time jobs(please comment/edit if im wrong). You can schedule two jobs, a single one time job that fetches data for 4 months and then the recurrant normal tasks in another job.
for some reason my cron job which is scheduled at 8 am has been running late. Yesterday it ran at 8:01:14 am and today at 8:02:29 am. The job runs inside a container and is the only cron entry in the crontab. I read somewhere that if you have > 100 jobs cron will reschedule your job to run 60 seconds later. But, since I am in a container on a server which has 2 container with 1 job per container I cant see how i would have over 100 jobs in the first place.
The job doesn't have any dependencies. Is there a way to see why this is happening? ever since I set this up 2 months ago it has been firing at 8:00 am sharp, has only acted up last 2 days.
The task is just a basic shell(.sh) script
The time on server and container are both in sync (tested using date command). No changes have been made this week at all.
What is interesting is that the other process in the other container which is basically a duplicate of the first one ran on time.
Is there a similar event scheduler from MySQL available in PostgreSQL?
While a lot of people just use cron, the closest thing to a built-in scheduler is PgAgent. It's a component to the pgAdmin GUI management tool. A good intro to it can be found at Setting up PgAgent and doing scheduled backups.
pg_cron is a simple, cron-based job scheduler for PostgreSQL that runs
inside the database as an extension. A background worker initiates
commands according to their schedule by connecting to the local
database as the user that scheduled the job.
pg_cron can run multiple jobs in parallel, but it runs at most one
instance of a job at a time. If a second run is supposed to start
before the first one finishes, then the second run is queued and
started as soon as the first run completes. This ensures that jobs run
exactly as many times as scheduled and don’t run concurrently with
themselves.
If you set up pg_cron on a hot standby, then it will start running the
cron jobs, which are stored in a table and thus replicated to the hot
standby, as soon as the server is promoted. This means your periodic
jobs automatically fail over with your PostgreSQL server.
Source: citusdata.com