Puneet Varma (Editor)

List of job scheduler software

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This is a list of notable job scheduling software. Job scheduling applications are designed to carry out repetitive tasks as defined in a schedule based upon calendar and event conditions. More recently this category of software is increasingly labeled as 'Workload Automation', which is an industry term for the next generation of job scheduling applications.

Contents

Abstract

The products are divided into four categories: standalone vendor software supporting ERP (Enterprise Resource Planning) software, standalone vendor software without ERP support, non-vendor schedulers, and platform built-ins. (Typically the goal of "ERP software" is to facilitate the flow of information between all business functions within an organization.)

Only products having a Wikipedia page for it or its vendor are listed. The products are ordered alphabetically.

Job scheduling products with ERP support

For the description of the functionalities in the table header, just click on it.

Job scheduling products without ERP support

For the description of the functionalities in the table header just click on it.

Non-vendor schedulers

  • DIET
  • OpenPBS
  • Simple Linux Utility for Resource Management
  • Platform built-in schedulers

  • Cron Unix built in scheduler
  • Windows Task Scheduler
  • JES2 and JES3 on IBM zOS
  • Version

    The information in this table is regarding this product version.

    Company size

  • Large : the company has many products
  • Dedicated : the company's job scheduling product is their primary product
  • Script storage

  • Some products are only capable of starting a script or executable which is already present on the target system. Eventually some environment variables are set prior to the script run.
  • Some products are able to store scripts in their repository. When the job runs, its script is first transferred to the target system and then executed. This gives the batch job designer a central point of development.
  • Event driven

  • Most modern job schedulers are event driven: jobs that run in sequence have no wait time.
  • The opposite is time driven, like Windows' Scheduled tasks or Unix' crontab: a job runs at some time, and the next job is scheduled the expected runtime later plus some spare time.
  • Agents

  • An agentless job scheduler makes use of RSH, or more secure, of SSH.
  • An agent is a piece of software that is installed on every host, and is usually continuously connected to the central job scheduler. This causes more functionality to the agents, like a file trigger.
  • A drawback of agents is that they must be upgraded from time to time, which can cause severe production downtime when having lots of agent systems.
  • Platforms

    All kinds of Unix flavours mentioned by the vendors are notes as "Unix". The same goes for "Linux" and "Windows" and Mac.

    Any OS account

    Can the agent run a job as any OS-account on the target system? The agent of some products can only run a job as the user the agent runs as, which most likely must have a lot of privileges, which in turn might be a security issue.

    stdout/err transfer

    Can you inspect the standard output and/or standard error of the executed job on your viewer? Some systems even immediately transfer both to the central scheduler, which might give extra network load.

    File events

    Can the job scheduler react (start a job) on the appearance of a file? With this you don't have to poll for the file.

    File transfer

    Some vendors deliver a file transfer utility. The standard command-line FTP on e.g. Unix is not good enough for batch usage: a file might be failed to transfer, yet the 'bye' command went well so the exit status will be ok. The file that may link both the servers will give a proper scheduler procedure in the process.

    ERP support

    The list of ERP packages supported.

    SAP XBP version

    The SAP XBP interface comes in 2 versions: 2 and 3. Version 2 has an intercept table, while version 3 has for intercept an include and an exclude table. This is important when you want all SAP-jobs but a few being intercepted and routed through your scheduling system. Some SAP-jobs won't work well when intercepted.

    Role-based security

    Is it possible to grant privileges through roles to the users of your scheduling system? Think of developers, operators and administrators. Some products use LDAP or the Windows system AD.

    Auditing

    Some companies demand recording of all user actions (compliance), but if not it is still handy to backtrace who did some action, just to ask him why he did so.

    Design lifecycle

    Does the job scheduling system support the transfer of batch designs along development, test, approve and production repositories? Most products have an export- and import-feature, and some products have the transfer mechanism all built-in.

    User Interfaces

    Lists what kind of user interfaces are available to access the job Scheduler.

    References

    List of job scheduler software Wikipedia


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