clush is an utility program to run commands on a cluster which
benefits from the ClusterShell library and its Ssh worker. It features an
integrated output results gathering system (dshbak-like), can get node
groups by running predefined external commands and can redirect lines
read on its standard input to the remote commands.
When no command are specified, clush runs interactively.
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signal_handler(signum,
frame)
Signal handler used for main thread notification |
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get_history_file()
Turn the history file path |
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readline_setup()
Configure readline to automatically load and save a history file
named .clush_history |
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ttyloop(task,
nodeset,
timeout,
display,
remote)
Manage the interactive prompt to run command |
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_stdin_thread_start(stdin_port,
display)
Standard input reader thread entry point. |
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bind_stdin(worker,
display)
Create a stdin->port->worker binding: connect specified worker
to stdin with the help of a reader thread and a ClusterShell Port
object. |
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run_command(task,
cmd,
ns,
timeout,
display,
remote)
Create and run the specified command line, displaying results in a
dshbak way when gathering is used. |
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run_copy(task,
sources,
dest,
ns,
timeout,
preserve_flag,
display)
run copy command |
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run_rcopy(task,
sources,
dest,
ns,
timeout,
preserve_flag,
display)
run reverse copy command |
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set_fdlimit(fd_max,
display)
Make open file descriptors soft limit the max. |
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clush_exit(status,
task=None)
Exit script, flushing stdio buffers and stopping ClusterShell task. |
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clush_excepthook(extype,
exp,
traceback)
Exceptions hook for clush: this method centralizes exception handling
from main thread and from (possible) separate task thread. |
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