EnglishFrenchSpanish

OnWorks favicon

hscan - Online in the Cloud

Run hscan in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command hscan that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


hscan - Scan clusters via RAPI and save node/instance data

SYNOPSIS


hscan [-p] [--no-headers] [-d path ] cluster...

hscan --version

DESCRIPTION


hscan is a tool for scanning clusters via RAPI and saving their data in the input format
used by hbal(1) and hspace(1). It will also show a one-line score for each cluster
scanned or, if desired, the cluster state as show by the -p option to the other tools.

For each cluster, one file named cluster.data will be generated holding the node and
instance data. This file can then be used in hbal(1) or hspace(1) via the -t option. In
case the cluster name contains slashes (as it can happen when the cluster is a
fully-specified URL), these will be replaced with underscores.

The one-line output for each cluster will show the following:

Name The name of the cluster (or the IP address that was given, etc.)

Nodes The number of nodes in the cluster

Inst The number of instances in the cluster

BNode The number of nodes failing N+1

BInst The number of instances living on N+1-failed nodes

t_mem Total memory in the cluster

f_mem Free memory in the cluster

t_disk Total disk in the cluster

f_disk Free disk space in the cluster

Score The score of the cluster, as would be reported by hbal(1) if run on the generated
data files.

In case of errors while collecting data, all fields after the name of the cluster are
replaced with the error display.

Note: this output format is not yet final so it should not be used for scripting yet.

OPTIONS


The options that can be passed to the program are as follows:

-p, --print-nodes
Prints the node status for each cluster after the cluster's one-line status
display, in a format designed to allow the user to understand the node's most
important parameters. For details, see the man page for htools(1).

-d path
Save the node and instance data for each cluster under path, instead of the current
directory.

-V, --version
Just show the program version and exit.

EXIT STATUS


The exist status of the command will be zero, unless for some reason loading the input
data failed fatally (e.g. wrong node or instance data).

Use hscan online using onworks.net services


Free Servers & Workstations

Download Windows & Linux apps

  • 1
    Alt-F
    Alt-F
    Alt-F provides a free and open source
    alternative firmware for the DLINK
    DNS-320/320L/321/323/325/327L and
    DNR-322L. Alt-F has Samba and NFS;
    supports ext2/3/4...
    Download Alt-F
  • 2
    usm
    usm
    Usm is a unified slackware package
    manager that handles automatic
    dependency resolution. It unifies
    various package repositories including
    slackware, slacky, p...
    Download usm
  • 3
    Chart.js
    Chart.js
    Chart.js is a Javascript library that
    allows designers and developers to draw
    all kinds of charts using the HTML5
    canvas element. Chart js offers a great
    array ...
    Download Chart.js
  • 4
    iReport-Designer for JasperReports
    iReport-Designer for JasperReports
    NOTE: iReport/Jaspersoft Studio Support
    Announcement: As of version 5.5.0,
    Jaspersoft Studio will be the official
    design client for JasperReports. iReport
    will...
    Download iReport-Designer for JasperReports
  • 5
    PostInstallerF
    PostInstallerF
    PostInstallerF will install all the
    software that Fedora Linux and others
    doesn't include by default, after
    running Fedora for the first time. Its
    easy for...
    Download PostInstallerF
  • 6
    strace
    strace
    The strace project has been moved to
    https://strace.io. strace is a
    diagnostic, debugging and instructional
    userspace tracer for Linux. It is used
    to monitor a...
    Download strace
  • More »

Linux commands

  • 1
    aclocal-15
    aclocal-15
    aclocal - manual page for aclocal 1.15 ...
    Run aclocal-15
  • 2
    AClock
    AClock
    AClock - Analog dockapp clock for
    GNUstep ...
    Run AClock
  • 3
    crashstats
    crashstats
    crashstats - Display CrashMail
    statistics ...
    Run crashstats
  • 4
    crashwrite
    crashwrite
    crashwrite - Creates PKT file from text
    file ...
    Run crashwrite
  • 5
    gap.real
    gap.real
    GAP - Groups, Algorithms and
    Programming DESCRIPTION: GAP is a system
    for computational discrete algebra with
    particular emphasis on computational
    group theory...
    Run gap.real
  • 6
    gap.sh
    gap.sh
    GAP - Groups, Algorithms and
    Programming DESCRIPTION: GAP is a system
    for computational discrete algebra with
    particular emphasis on computational
    group theory...
    Run gap.sh
  • More »

Ad