mq | MQ is a simple distributed in-memory message broker

 by   asim Go Version: v0.3.0 License: Apache-2.0

kandi X-RAY | mq Summary

kandi X-RAY | mq Summary

mq is a Go library typically used in Web Services, RabbitMQ applications. mq has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

MQ is a simple distributed in-memory message broker.
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            kandi-support Support

              mq has a low active ecosystem.
              It has 141 star(s) with 32 fork(s). There are 9 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 1 open issues and 1 have been closed. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of mq is v0.3.0

            kandi-Quality Quality

              mq has 0 bugs and 0 code smells.

            kandi-Security Security

              mq has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              mq code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              mq is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              mq releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.
              It has 1706 lines of code, 101 functions and 25 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

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            mq Key Features

            No Key Features are available at this moment for mq.

            mq Examples and Code Snippets

            No Code Snippets are available at this moment for mq.

            Community Discussions

            QUESTION

            RabbitMQ Delivery Acknowledgement Timeout
            Asked 2022-Mar-30 at 08:04

            I am using a managed RabbitMQ cluster through AWS Amazon-MQ. If the consumers finish their work quickly then everything is working fine. However, depending on few scenarios few consumers are taking more than 30 mins to complete the processing. In that scenarios, RabbitMQ deletes the consumer and makes the same messages visible again in the queue. Becasue of this another consumer picks it up and starts processing. It is happing in the loop. Therefore the same transaction is getting executed again and I am loosing the consumer as well. I am not using any AcknowledgeMode so I believe it's AUTO by default and it has 30 mins limit. Is there any way to increase the Delivery Acknowledgement Timeout for AUTO mode? Or please let me know if anyone has any other solutions for this.

            ...

            ANSWER

            Answered 2021-Sep-02 at 13:29

            This is the response from AWS support.

            From my understanding, I see that your workload is currently affected by the consumer_timeout parameter that was introduced in v3.8.15. We have had a number of reach outs due to this, unfortunately, the service team has confirmed that while they can manually edit the rabbitmq.conf, this will be overwritten on the next reboot or failover and thus is not a recommended solution. This will also mean that all security patching on the brokers where a manual change is applied, will have to be paused. Currently, the service does not support custom user configurations for RabbitMQ from this configuration file, but have confirmed they are looking to address this in future, however, is not able to an ETA on when this will available.

            From the RabbitMQ github, it seems this was added for quorum queues in v3.8.15 (https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.8.15 ), but seems to apply to all consumers (https://github.com/rabbitmq/rabbitmq-server/pull/2990 ).

            Unfortunately, RabbitMQ itself does not support downgrades (https://www.rabbitmq.com/upgrade.html ) Thus the recommended workaround and safest action form the service team, as of now is to create a new broker on an older version (3.8.11) and set auto minor version upgrade to false, so that it wont be upgraded. Then export the configuration from the existing RabbitMQ instance and import it into new instance and use this instance going forward.

            Source https://stackoverflow.com/questions/68952297

            QUESTION

            Custom Serilog sink with injection?
            Asked 2022-Mar-08 at 10:41

            I have create a simple Serilog sink project that looks like this :

            ...

            ANSWER

            Answered 2022-Feb-23 at 18:28

            If you refer to the Provided Sinks list and examine the source code for some of them, you'll notice that the pattern is usually:

            1. Construct the sink configuration (usually taking values from IConfiguration, inline or a combination of both)
            2. Pass the configuration to the sink registration.

            Then the sink implementation instantiates the required services to push logs to.

            An alternate approach I could suggest is registering Serilog without any arguments (UseSerilog()) and then configure the static Serilog.Log class using the built IServiceProvider:

            Source https://stackoverflow.com/questions/71145751

            QUESTION

            Can Entity Framework Core bet setup to use a backup connection string?
            Asked 2022-Feb-11 at 13:19

            My company is using 2 Windows servers. 1 Server is running as a backup server and other than SQL replication, the backup server requires manual intervention to get it running as the primary. I have no control over this, but I do have control of the apps/services running on the servers.

            What I have done is I got all the services to be running on both and added Rabbit MQ as a clustered message broker to kind of distribute the work between the servers. This is all working great and when I take a server down, nothing is affected.

            Anyway, to the point of the question, the only issue I see is that the services are using the same SQL server and I have nothing in place to automatically switch server if the primary goes down.

            So my question is, is there a way to get Entity Framework to use an alternative connection string should one fail?

            I am using the module approach with autofac as dependency injection for my services. This is the database registration.

            ...

            ANSWER

            Answered 2021-Aug-02 at 12:47

            You can define on custom retry strategy on implementing the interface IExecutionStrategy. If you want reuse the default SQL Server retry strategy, you can derive from SqlServerRetryingExecutionStrategy on override the method ShouldRetryOn :

            Source https://stackoverflow.com/questions/68620027

            QUESTION

            How to enqueue old messages into a new queue in RabbitMQ Exchange?
            Asked 2022-Feb-10 at 10:32

            I have an exchange with a type of topic that only redirects messages to queue payments

            Somewhere in the future, I will decide to add another queue payment_analyze to analyze all old and new messages that have been enqueued.

            durable exchanges and queues survive rabbit MQ restarts, persistent messages get written to disk but when binding a new queue to an old durable exchange, old messages do not get redirected (only new ones do get redirected)

            From my understanding, this is the intended behavior as exchanges do not store messages and only act as a "proxy"

            How do I achieve this?

            Possible Solution

            Creating a queue named parking and adding every enqueued message to it, whenever a new queue is added, consume messages from parking without acknowledging to keep the new queue "semi" up to date.

            ...

            ANSWER

            Answered 2022-Feb-10 at 10:32

            Even though your configured persistent messages on the payments queue, this just means messages will survive a broker restart - once a message has been consumed and acknowledged it would be removed.

            If you know you're going to need the payment_analyze queue at some point in the future, is it viable to just create this queue/binding upfront and route messages to both payment_analyze and payments? Messages on the payment_analyze will bank up until you're ready to start consuming them. Note: If you're producing a large number of messages this approach might result in storage issues...

            As an alternative, you could write the messages to BLOB storage (or some other data store) as part of your payments queue consumer (or a different queue/consumer altogether) and then when you're ready to introduce the payment_analyze queue, you could write a script to read all the old messages from BLOB storage and send them to the RabbitMQ exchange. With 'topic' exchanges - see here - you can probably be clever with wildcards and routing keys in your queue bindings to ensure both old messages (from BLOB storage) as well as new messages are both routed to the payment_analyze queue, but only new messages are routed to the payments queue (so that your payments queue consumer is not reprocessing old messages).

            Another option (assuming you're not overly invested in RabbitMQ) could be to consider Apache Kafka instead which deals with this scenario quite nicely as messages aren't automatically removed from a partition once they've been processed by a subscriber.

            Anyways, just a few options to consider...

            Source https://stackoverflow.com/questions/70947346

            QUESTION

            Connecting to MQ using CCDT JSON from Websphere
            Asked 2022-Jan-28 at 21:45

            I have IBM MQ running in one docker container and in another container I have IBM Websphere running. From Websphere I am trying to create QCF using CCDT connection method. I have copied CCDT file inside /tmp folder of Websphere container, when I test the connection I get the error:

            ...

            ANSWER

            Answered 2022-Jan-28 at 21:45

            JSON CCDT support was not added to IBM MQ until 9.2 LTS. You won't be able to use it with a 9.1.0.7 RA.

            Your only options are to use a binary CCDT or add/installed the 9.2 RA (rar) for WAS to use instead of the builtin 9.1.0.7 RA.

            9.2.0.4 is the latest and you can download the java-all package to obtain the rar file.

            Source https://stackoverflow.com/questions/70883631

            QUESTION

            Sending an XML File to the MQ
            Asked 2022-Jan-21 at 04:28

            I'm quite new to IIB and MQ Explorer.

            Is it possible to send an XML file to a queue and then reading it and modifying it through IIB without 3rd party programs (like RfhUtil)?

            In IIB I have a Message flow that consists of MQ Input > Java Compute > MQ Output.

            My MQ Explorer has 2 Queues, INPUT and OUTPUT.

            I want to be able to send a file to the MQ Input(connected to 'INPUT' queue) and then modifying it in the Java Compute and lastly sending it to the MQ Output(connected to 'OUTPUT' queue)

            I'm asking that because I did not encounter an option to send anything except "Put Test Message" which does not have the option to add a file.

            I'm running everything locally because I'm still learning (Local Queues as well, if it matters).

            Thanks in advance, if the question is lacking information, please let me know.

            ...

            ANSWER

            Answered 2021-Sep-23 at 13:00

            I dont see any requirement for the input queue. It sounds as if your real requirement is

            • Read an input file using a FileInput node
            • Use JavaCompute to construct the output message tree
            • Put the output message to the output queue

            Source https://stackoverflow.com/questions/69288658

            QUESTION

            consteval with templates possible?
            Asked 2021-Dec-01 at 13:00

            I am trying to make some templated version of consteval functions, I am not clear if there are any restrictions here.

            ...

            ANSWER

            Answered 2021-Dec-01 at 13:00

            As pointed out by, @cigien this is indeed a clang bug. It works fine with gcc.

            Source https://stackoverflow.com/questions/69166564

            QUESTION

            How to fix "To fix it set server name by environment variable PHP_IDE_CONFIG and restart debug session."?
            Asked 2021-Nov-19 at 17:44

            PhpStorm xdebug can't find file when connection comes from docker container

            Tried by this. When added PHP_IDE_CONFIG to my docker, then xdebug did not even stop. Before adding that env variable, xdebug at least stops but I am not able to step through lines, it just shows an error:

            Cannot find file '/var/www/pmp-api/bin/console' locally. To fix it set server name by environment variable PHP_IDE_CONFIG and restart debug session.

            I have

            ...

            ANSWER

            Answered 2021-Nov-19 at 17:44

            Check the log. Check if xdebug connects, if it tries to connect to correct ip. In my case it was trying to to connect to wrong ip. So needed to change this config to this value:

            xdebug.remote_host=192.168.31.26

            Next thing - PhpStorm started writing

            Cannot parse server name for external Xdebug connection. To fix it create environment variable PHP_IDE_CONFIG on the remote server. Windows: set PHP_IDE_CONFIG="serverName=SomeName" Linux / Mac OS X: export PHP_IDE_CONFIG="serverName=SomeName".

            So got in docker container and run the export. ServerName has to be same as Name field in PhpStorm config

            Source https://stackoverflow.com/questions/69933013

            QUESTION

            "Multiple definition of" "first defined here" on GCC 10.2.1 but not GCC 8.3.0
            Asked 2021-Nov-10 at 21:14

            I've had a bit of a look around Stackoverflow and the wider Internet and identified that the most common causes for this error are conflation of declaration (int var = 1;) and definition (int var;), and including .c files from .h files.

            My small project I just split from one file into several is not doing any of these things. I'm very confused.

            I made a copy of the project and deleted all the code in the copy (which was fun) until I reached here:

            main.c ...

            ANSWER

            Answered 2021-Nov-10 at 21:14

            Yes there was a change in behaviour.

            In C you are supposed to only define a global variable in one translation unit, other translation unit that want to access the variable should declare it as "extern".

            In your code, a.h is included in both a.c and main.c so the variable is defined twice. To fix this you should change the "int test" in a.h to "extern int test", then add "int test" to a.c to define the variable exactly once.

            In C a definition of a global variable that does not initialise the variable is considered "tentative". You can have multiple tentative definitions of a variable in the same compilation unit. Multiple tentative defintions in different compilation units are not allowed in standard C, but were historically allowed by C compilers on unix systems.

            Older versions of gcc would allow multiple tenative definitions (but not multiple non-tentative definitions) of a global variable in different compilation units by default. gcc-10 does not. You can restore the old behavior with the command line option "-fcommon" but this is discouraged.

            Source https://stackoverflow.com/questions/69908418

            QUESTION

            How to edit each line of file and write to file after each edit
            Asked 2021-Nov-02 at 17:30

            I have a file that is very large. I need to rearrange something in the file but the file is too large to load into memory. I was thinking of ways to achieve this goal and what I came up with was just editing the file line by line. So what I need to do is read the file, remove certain columns, and then write the file. As I mentioned before, the file is very large so I need to write the file as the script runs. I will give an example data set and the code that I am using

            Here is an example dataset

            ...

            ANSWER

            Answered 2021-Nov-02 at 16:05

            seperator should be \n instead of \t while writing to the file. Also opening file in w mode inside the for loop overrides the previous contents of the file.

            Source https://stackoverflow.com/questions/69812332

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