Can't open nodes-6379.conf in order to acquire a lock: Permission denied
I am getting error on redis server on linux 7.5 after change the default path /var/lib/redis to /redisdata, and enable cluster-enabled yes. It would be really appreciate if some one can check and suggest on this issue.
error code:
I would like to copy data from local mechine to cluster. Basically, I typed
scp -r DVD/ acount@cluster:/
it shows Permission denied.
Could anyone please give me a clue to write permission on cluster, please?
The poperty of where on cluster I'd like to put is drwxr-xr-x
Any idea would... (1 Reply)
Whenever I try to open xterm, below error loops in itself
adroit:/home/seo/hitendra/.dt 32> xterm &
open ttydev: Permission denied
open ttydev: Permission denied
open ttydev: Permission denied
open ttydev: Permission denied
....
....
....
This error sometime comes ,sometime not.... (1 Reply)
I created a user so that when he logs in he will be directed to a menu
/etc/passwd
user1:x:115:1:Support -SysAd:/export/home/user1:/export/home/suppotrmenu/script.sh
However when I logged in remotely from another server by ssh user1@1.1.1.1 , it saysexport/home/suppotrmenu/script.sh:... (4 Replies)
Hi all,
I have to test some user priviliges. The goal is to be sure that an unauthorized user can't restart some modules (ssh, mysql etc...).
I'm trying to automate it with a shell script but in same cases I got the syslog broadcast message.
Is there any way to simply get a return code... (3 Replies)
Hello
I have simple line of code here:
FILE *lockfp = fopen("/var/lock/subsys/processName", "w");
which is denied even running as root. The result is
locking failed for the following reason: Permission denied
How is this possible? Why is this happening?
Thanks for your... (4 Replies)
I am using korn shell
When I type in Telnet on cmd line, I get message
"cannot execute"
How can I get permission to execute command ? In which dir is telnet located ? I looked in /usr/bin dir. but its not there
Thanks (1 Reply)
Trying to get date into the txt file.
It says
Permission denied.
echo $(date +%I:%M:%S_%D) >> /tmp/systemd_suspend_test_err.txt
exec 2>> /tmp/systemd_suspend_test_err.txt
if ; then
# Do the thing you want before suspend here
echo "we are suspending $(date +%I:%M:%S_%D)."
elif ;... (5 Replies)
Discussion started by: drew77
5 Replies
LEARN ABOUT DEBIAN
anyevent::redis
AnyEvent::Redis(3pm) User Contributed Perl Documentation AnyEvent::Redis(3pm)NAME
AnyEvent::Redis - Non-blocking Redis client
SYNOPSIS
use AnyEvent::Redis;
my $redis = AnyEvent::Redis->new(
host => '127.0.0.1',
port => 6379,
encoding => 'utf8',
on_error => sub { warn @_ },
);
# callback based
$redis->set( 'foo'=> 'bar', sub { warn "SET!" } );
$redis->get( 'foo', sub { my $value = shift } );
my ($key, $value) = ('list_key', 123);
$redis->lpush( $key, $value );
$redis->lpop( $key, sub { my $value = shift });
# condvar based
my $cv = $redis->lpop( $key );
$cv->cb(sub { my $value = $_[0]->recv });
DESCRIPTION
AnyEvent::Redis is a non-blocking (event-driven) Redis client.
This module is an AnyEvent user; you must install and use a supported event loop.
ESTABLISHING A CONNECTION
To create a new connection, use the new() method with the following attributes:
host => <HOSTNAME>
Required. The hostname or literal address of the server.
port => <PORT>
Optional. The server port.
encoding => <ENCODING>
Optional. Encode and decode data (when storing and retrieving, respectively) according to ENCODING ("utf8" is recommended or see
Encode::Supported for details on possible ENCODING values).
Omit if you intend to handle raw binary data with this connection.
on_error => $cb->($errmsg)
Optional. Callback that will be fired if a connection or database-level error occurs. The error message will be passed to the
callback as the sole argument.
METHODS
All methods supported by your version of Redis should be supported.
Normal commands
There are two alternative approaches for handling results from commands:
o AnyEvent::CondVar based:
my $cv = $redis->command(
# arguments to command
);
# Then...
my $res;
eval {
# Could die()
$res = $cv->recv;
};
warn $@ if $@;
# or...
$cv->cb(sub {
my($cv) = @_;
my($result, $err) = $cv->recv
});
o Callback:
$redis->command(
# arguments,
sub {
my($result, $err) = @_;
});
(Callback is a wrapper around the $cv approach.)
Subscriptions
The subscription methods ("subscribe" and "psubscribe") must be used with a callback:
my $cv = $redis->subscribe("test", sub {
my($message, $channel[, $actual_channel]) = @_;
# ($actual_channel is provided for pattern subscriptions.)
});
The $cv condition will be met on unsubscribing from the channel.
Due to limitations of the Redis protocol the only valid commands on a connection with an active subscription are subscribe and unsubscribe
commands.
Common methods
o get
o set
o hset
o hget
o lpush
o lpop
The Redis command reference (<http://redis.io/commands>) lists all commands Redis supports.
REQUIREMENTS
This requires Redis >= 1.2.
COPYRIGHT
Tatsuhiko Miyagawa <miyagawa@bulknews.net> 2009-
LICENSE
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
AUTHORS
Tatsuhiko Miyagawa
David Leadbeater
Chia-liang Kao
franck cuny
Lee Aylward
Joshua Barratt
Jeremy Zawodny
Leon Brocard
Michael S. Fischer
SEE ALSO
Redis, AnyEvent
perl v5.10.1 2011-01-12 AnyEvent::Redis(3pm)