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Questions tagged [queue]

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Does Postfix add the DKIM header before or after a message is queued?

The Postfix configuration has been changed to add a DKIM header when sending a mail. But Postfix is currently in the stop status, and mailq shows that new mails have been queuing in the meantime. Will ...
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1 vote
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30 views

How to see contents of output queue of NIC in Linux and introspect frame delay

I am experimenting with tc tool to implement prioritization of specific data coming from my computer and would like to see exatly how the frames are scheduled and how much time they spend in the qdisc ...
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63 views

Adapter VMQ and processor groups in Hyper-V (using Switch Embedded Teaming) not working

I thought I had a pretty good understanding of virtual machine queuing but I am getting unexpected results that I do not quite understand. I have a system that has two processors in it with each ...
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21 views

Sendmail not working with Queue group

I've tried to use the queue group...but seems not to work Using sendmail v 8.14.7 on my sendmail.mc ####### Queue group ############## define(`QUEUE_DIRECTORY',`/var/spool/mqueue') QUEUE_GROUP(`...
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  • 1
1 vote
1 answer
809 views

Amazon SQS maximum in flight messages

I want to use a FIFO SQS for message transport - while researching I found the following two statements: Messages per queue: The number of messages that an Amazon SQS queue can store is unlimited. ...
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  • 121
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1 answer
193 views

Asterisk/FreePBX queues no longer working

Incoming calls go straight through to failover regardless what other settings are. I have deleted the queue and rebuilt it, nothing seams to fix it... Asterisk 16 Freepbx 15 Debian 10 There is a ...
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  • 13
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1 answer
153 views

nftables queue with script

I am learning nftables and the goal is to filter packets based on ip and port destination. They have to be enqueued to userspace where my script will change the payload field and send out the packet ...
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156 views

Using BASH script workers for Beanstalkd

I want to have Beansalkd workers in BASH script, not in PHP like you usually see. Is that possible? Everywhere I look, the Beanstalkd workers are PHP scripts. So what I want is: after beanstalkd ...
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63 views

Asterisk - Position Announcement to First Caller

When Asterisk announces the position of a caller in the queue, it plays queue-thereare, followed by the caller's position, followed by queue-callswaiting. We have custom messages for each of these ...
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1 vote
1 answer
229 views

Postfix: How to keep an email in the mail queue for further investigation?

Is there any way to keep an email in the Postfix mail queue for investigation/debugging purposes? I want delay the delivery and the email to be kept in the queue which let's me check it's contents. ...
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262 views

Postfix deferred queue

I search and search and do not find answer. I have problem with Polish email providers and try to talk with them but ... can somebody tell my what means this numbers for qshape deferred I'm talking ...
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2 votes
0 answers
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How to configure multiple workers for laravel queue with systemd [duplicate]

I am running queue for my laravel app using systemd. Here's my service file [Unit] Description=Mosharaf isdp queue [Service] User=nginx Group=nginx Type=simple Restart=always Nice=10 WorkingDirectory=...
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  • 121
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257 views

Print jobs are getting stuck in the queues of the printers on the Print server (Windows server 2016)

Print jobs are getting stuck in the queues of the printers on the Print server (Windows server 2016) The printout are being printed only after the affected printers are physically restarted. The ...
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0 answers
165 views

How to show docker logs until container becomes healthy

I'm trying to create CI infrastructure for a project. We deploy application with docker. It usually takes some time, to start up application. I would like to see in my gitlab job logs my docker logs......
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ServiceBus-per-customer in a SaaS

My application works great right now as an Azure App Service. It uses a Service Bus Queue to push bits of data that are then picked up by clients, "stuff" happens, and then the clients push ...
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  • 103
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1 answer
174 views

PUB/SUB Message Queue with server side filtering?

I am looking for a message queue to realize a chat application. The most important requirement is: when a subscriber specifies a filter criteria, all the messages need to be filtered on the server ...
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150 views

Postfix / Dovecot: Incoming Message Queue if local transport (dovecot) is unavailable

I have a domain with a small v-server configured for mail reception / delivery with Postfix and Dovecot. Since I'm a little bit paranoid, I used gocryptfs to encrypt local mail storage on disk. This ...
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What's so good about having a job queue?

I am currently building an API that sends transactional emails to users. I do this with a job queue, bull in particular. During development, something crossed my mind; where are these jobs actually ...
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56 views

POSTFIX bounce email ro Reply-Ton and/ord Return-Path

for an email sending service, I need to configure the email bounces of POSTFIX on Debian so that they go to the Reply-To and/or the Return-Path since the one sending is a generic user "no-reply @ ...
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0 votes
1 answer
884 views

Asterisk: Using Queue() in the h extension

I'm trying to get users to be able to record a message, hangup and have the call continue and dial Queues and playback the recording. I've gotten most of the way there, but right now when I call ...
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46 views

How configurable is the Linux Network Emulator in regards to queue disciplines?

Based on this wiki article https://wiki.archlinux.org/index.php/Advanced_traffic_control It appears that I can configure the Linux traffic controller, which seems to be a subset of the Linux Network ...
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1 vote
0 answers
334 views

Asterisk, display queue name or called number on the phone

Our Asterisk server will soon receive SIP calls on multiple numbers, so we need to know which number has been dialed to correctly answer on the phone : "Hello, this is Company-A" or "Hello, this is ...
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6 votes
3 answers
7k views

How to make laravel queue work in aws beanstalk?

I made an AWS Beanstalk and RDS instances. I'm testing out a project which syncs FTP and S3 files. How do I make the typical php artisan queue:work or php artisan queue:listen work in AWS Beanstalk? ...
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  • 161
2 votes
0 answers
587 views

Raabitmq: Ranch listener rabbit_web_dispatch_sup_15672 had connection process started with cowboy_protocol

Getting these in the logs in rabbitmq node: node1. Ranch listener rabbit_web_dispatch_sup_15672 had connection process started with cowboy_protocol:start_link/4 at <0.31197.2720> exit with ...
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2 votes
1 answer
123 views

How can I scale a mysql database with high I/O used for queue jobs with 300 workers?

I'm currently using angular on the frontend for a dashboard that displays the progress of queue workers. On the backend, I use 50 AWS EC2 instances that each have around 6 workers and those are ...
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516 views

"keep printed documents" re-enabling itself

We have Windows Server 2016 as a print server with roughly 40 printers of various makes (Ricoh, HP, Konica), most of which are deployed via GPO. A few months ago the 'jobs in queue' started filling ...
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4 votes
1 answer
5k views

AWS SQS behavior with multiple Lambda Triggers set

I've got an SQS queue set up with multiple Lambdas configured as triggers. While this is allowed by AWS's API it's not clear what the intended behavior is. For example, is one message pulled off the ...
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0 votes
1 answer
420 views

NGINX + PHP-FPM issues with burst requests

I have NGINX setup with PHP7.2-FPM and am having issues with burst requests. The average amount of active processes (fpm children) is 15. I have these settings (48 core server): listen.backlog = ...
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-2 votes
1 answer
251 views

How to determine the bottleneck of a given network

Consider an Access Point with a packet queue that can hold up to 50 packets and a network whose bottleneck is a link with a datarate of 50 Mbit/s. There are quite a few nodes connecting wirelessly ...
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1 vote
3 answers
2k views

MSMQ Queue Not Processing

I have an rather unpleasant error with MSMQ, one that following the information available on-line isn't fixing. It's resulting in emails (.EML files) going into C:\inetpub\mailroot\Queue and just ...
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1 vote
1 answer
224 views

Share printer job queue among multiple printers

Is it possible to have multiple printers and only one printer job queue? Any good software or hardware solution? Idea is like so: someone sends a print job to printer (possibly shared via Windows ...
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To implement persistent queue, should I go for RDS or DynamoDB on aws?

This is my use case: I have a decoupled application system. One application is accepting requests, validating, and queuing in SQS. Other application is mounted on a cluster of EC2 workers that will ...
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  • 101
0 votes
1 answer
340 views

Postfix - Bounced e-mail in mailq for non-exist email account

My postfix mail queue has quite a few bounced back e-mails; however, the recipient of the bounced back e-mail does not exist, e.g. @server_hostname.example.local, so it will never be delivered and ...
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1 vote
2 answers
8k views

How to open up a port firewall on Ubunto internally and how to verify it

Background I got an aws machine that's running both a laravel app, and now I've tried to install beanstalk console. This is what the nginx config file of the laravel app look like: include forge-...
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  • 1,067
-1 votes
1 answer
644 views

Hundreds of fake e-mails in my mail queue every day

I run postfix/dovecot/spamassasin/clamav/amavis mail server. Recently (maybe 1 month) I find about 500 undelivered e-mails in my mailq. I delete them, but I guess it is not a helathy permanent ...
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1 vote
1 answer
87 views

If sendmail fails to resolve smarthost, add to queue rather than fail?

Occasionally, in the middle of the night, DNS fails to resolve our smarthost address. And sendmail decides to send the mail as a "rejected" message. Because "root" is aliased to an off-box address, ...
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  • 305
0 votes
1 answer
594 views

SGE set maximum number of nodes per user

I would like to limit the number of nodes a user can submit jobs to on a given queue. Is it possible? For example, I have 5 nodes with 10 cores each, and I do not want a given user to be allowed to ...
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1 vote
0 answers
668 views

The Message couldn't be delivered 250.2.6.0

Hello I have a Exchange 2010 server and I am having issues with 1 Domain trying to send us emails. I have the Anti Spam rule on and have whitelisted their email address and domain and even their IP of ...
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1 vote
1 answer
667 views

LINUX: multiq leaf not replaceable with tc

# uname -r 4.7.5-200.fc24.x86_64+debug # tc -s -d qdisc show dev ens3 qdisc mq 8001: root Sent 44589 bytes 340 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 qdisc fq_codel ...
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0 answers
248 views

Postfix fails to send requeued (back to the active queue) deferred emails

So, I've been digging into the pits of Postfix lately in order to administrate my mail server. For various reasons, some of which I haven't yet explained, I ended up with lots of deferred emails, and ...
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  • 101
2 votes
0 answers
77 views

Torque pbs queue system runs queue in reverse

I have a small compute cluster set up on Redhat 7.1. It runs the PBS torque queue system with version 5.1.1. When I queue several jobs it starts to run the jobs in "backwards" priority. It starts ...
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  • 21
-1 votes
2 answers
154 views

Will Ubuntu automatically queue hundreds of processes?

I'm creating a service that will be calling potentially hundreds or even 1000s of ffmpeg commands at once. Will Ubuntu 16.04 automatically queue these jobs? Is there some sort of app that does a ...
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0 votes
1 answer
815 views

Set large buffer/queue on a network interface to emulate bufferbloat

I want to emulate large buffer delay on a specific interface. I have a simple dumbbell topology like: PC1 eth0 <-----------------------> eth0 PC2 It would be good if I ping PC1 from PC2, ...
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  • 3
1 vote
0 answers
30 views

Rabbitmq listener across machine not detected

I have multiple rabbitmq listeners running across linux boxes. However when I post a message A (which takes some time to process , around 5 mins), new messages after A wait in the queue till A is ...
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  • 111
1 vote
0 answers
98 views

Using an after queue policy daemon with postfix

I have this scenario: Postfix is configured with cluebringer (Policyd v2.1) and emails that are exceeding the quota are deffered. What I need to do is somehow use cluebringer in after-queue so it ...
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0 votes
1 answer
57 views

What's a good way to schedule scripts that depend on each other? [duplicate]

So, I have a few scripts that need to be executed in order, and they need to wait for the previous script to finish since they need the data it gathers. I thought about putting it all in a single ...
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  • 11
0 votes
1 answer
404 views

Change FreePBX Queue settings programatically?

Is there is anyway to change the settings(such as 'timeout') of a queue added by FreePBX?. I found No such options in Asterisk Manager (AMI) and CLI.
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0 votes
2 answers
2k views

Auto-restart commandline process in screen every day

I have a queue script that finds new jobs from the db every second and handles them. Sometimes it doesn't do anything for 10 hours, and sometimes it receives 1000 new jobs in 3 min. The queue works ...
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  • 335
7 votes
2 answers
11k views

How to flush postfix queue one mail at a time?

Sometimes, mails stay stuck in my postfix queue, the distant server saying "Too many connections, slow down". I already configured my postfix for specific domains to send only one mail per second, but ...
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2 votes
1 answer
654 views

Is it possible to maintain the queue while restarting HAProxy

I am using HAProxy to load balance app servers. Each app server has a max connections limit, once that limit is exceeded the queue is exceeded. When that happens, I will be adding another app server ...
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