Queue data structure with expiration
A shim for the setImmediate efficient script yielding API
A simple tool to keep requests to be executed in order.
Tiny queue data structure
Timeout HTTP/HTTPS requests
fast, tiny `queueMicrotask` shim for modern engines
Better Queue for NodeJS
Simple JS queue with auto run for node and browsers
Task and Message Queues with Multiple Providers
Simple JS queue with auto run for node and browsers
Promise queue with concurrency control
Curated collection of data structures for the JavaScript/TypeScript.
queue-lit is a tiny queue data structure in case you `Array#push()` or `Array#shift()` on large arrays very often
The smallest and simplest JavaScript priority queue
Emit `ETIMEDOUT` or `ESOCKETTIMEDOUT` when ClientRequest is hanged
Next tick shim that prefers process.nextTick over queueMicrotask for compat
a simple priority queue data structure
Compatible version of p-timeout
Timeout a promise after a specified amount of time
Promise-based queue
A lightweight JavaScript MP4 (MPEG-4, ISOBMFF) file/box parser.
LRU Queue
A simple queue node that store incoming messages in memory queue and uses a feedback from a following action or trigger message to release the next message stored in the queue.
In memory queue system prioritizing tasks
A simple Resque plugin that times and saves some simple metrics for Resque jobs back into redis. Based on this system you could build some simple auto-scaling mechanism based on the speed and ETA of queues. Also includes a hook/callback mechanism for recording/sending the metrics to your favorite tool (AKA statsd/graphite).
Simple Scheduler adds the ability to enhance Heroku Scheduler by using Sidekiq to queue jobs in the future. This allows for defining specific run times (Ex: Every Sunday at 4 AM) and running tasks more often than Heroku Scheduler's 10 minute limit.
A paranoid nagios plugin for checking resque jobs actually being queued, processed in given time. It queues simple job, then later checks if the job is processed and updated timestamp in redis.
Amazon SQS queue names need to be unique at the account level. This gem implements a simple naming convention of <environment>-<queue-name> to allow your app to have keep track of queues per environment. For the development environment, an extra prefix is added based on your machine's hostname so that multiple developers can work at the same time without stepping on each others' queues.
A paranoid nagios plugin for checking resque jobs actually being queued, processed in given time. It queues simple job, then later checks if the job is processed and updated timestamp in redis.
A simple Resque plugin that times and saves some simple metrics for Resque jobs back into redis. Based on this system you could build some simple auto-scaling mechanism based on the speed and ETA of queues. Also includes a hook/callback mechanism for recording/sending the metrics to your favorite tool (AKA statsd/graphite).
Log2json lets you read, filter and send logs as JSON objects via Unix pipes. It is inspired by Logstash, and is meant to be compatible with it at the JSON event/record level so that it can easily work with Kibana. Reading logs is done via a shell script(eg, `tail`) running in its own process. You then configure(see the `syslog2json` or the `nginxlog2json` script for examples) and run your filters in Ruby using the `Log2Json` module and its contained helper classes. `Log2Json` reads from stdin the logs(one log record per line), parses the log lines into JSON records, and then serializes and writes the records to stdout, which then can be piped to another process for processing or sending it to somewhere else. Currently, Log2json ships with a `tail-log` script that can be run as the input process. It's the same as using the Linux `tail` utility with the `-v -F` options except that it also tracks the positions(as the numbers of lines read from the beginning of the files) in a few files in the file system so that if the input process is interrupted, it can continue reading from where it left off next time if the files had been followed. This feature is similar to the sincedb feature in Logstash's file input. Note: If you don't need the tracking feature(ie, you are fine with always tailling from the end of file with `-v -F -n0`), then you can just use the `tail` utility that comes with your Linux distribution.(Or more specifically, the `tail` from the GNU coreutils). Other versions of the `tail` utility may also work, but are not tested. The input protocol expected by Log2json is very simple and documented in the source code. ** The `tail-log` script uses a patched version of `tail` from the GNU coreutils package. A binary of the `tail` utility compiled for Ubuntu 12.04 LTS is included with the Log2json gem. If the binary doesn't work for your distribution, then you'll need to get GNU coreutils-8.13, apply the patch(it can be found in the src/ directory of the installed gem), and then replace the bin/tail binary in the directory of the installed gem with your version of the binary. ** P.S. If you know of a way to configure and compile ONLY the tail program in coreutils, please let me know! The reason I'm not building tail post gem installation is that it takes too long to configure && make because that actually builds every utilties in coreutils. For shipping logs to Redis, there's the `lines2redis` script that can be used as the output process in the pipe. For shipping logs from Redis to ElasticSearch, Log2json provides a `redis2es` script. Finally here's an example of Log2json in action: From a client machine: tail-log /var/log/{sys,mail}log /var/log/{kern,auth}.log | syslog2json | queue=jsonlogs \ flush_size=20 \ flush_interval=30 \ lines2redis host.to.redis.server 6379 0 # use redis DB 0 On the Redis server: redis_queue=jsonlogs redis2es host.to.es.server Resources that help writing log2json filters: - look at log2json.rb source and example filters - http://grokdebug.herokuapp.com/ - http://www.ruby-doc.org/stdlib-1.9.3/libdoc/date/rdoc/DateTime.html#method-i-strftime
Log2json lets you read, filter and send logs as JSON objects via Unix pipes. It is inspired by Logstash, and is meant to be compatible with it at the JSON event/record level so that it can easily work with Kibana. Reading logs is done via a shell script(eg, `tail`) running in its own process. You then configure(see the `syslog2json` or the `nginxlog2json` script for examples) and run your filters in Ruby using the `Log2Json` module and its contained helper classes. `Log2Json` reads from stdin the logs(one log record per line), parses the log lines into JSON records, and then serializes and writes the records to stdout, which then can be piped to another process for processing or sending it to somewhere else. Currently, Log2json ships with a `tail-log` script that can be run as the input process. It's the same as using the Linux `tail` utility with the `-v -F` options except that it also tracks the positions(as the numbers of lines read from the beginning of the files) in a few files in the file system so that if the input process is interrupted, it can continue reading from where it left off next time if the files had been followed. This feature is similar to the sincedb feature in Logstash's file input. Note: If you don't need the tracking feature(ie, you are fine with always tailling from the end of file with `-v -F -n0`), then you can just use the `tail` utility that comes with your Linux distribution.(Or more specifically, the `tail` from the GNU coreutils). Other versions of the `tail` utility may also work, but are not tested. The input protocol expected by Log2json is very simple and documented in the source code. ** The `tail-log` script uses a patched version of `tail` from the GNU coreutils package. A binary of the `tail` utility compiled for Ubuntu 12.04 LTS is included with the Log2json gem. If the binary doesn't work for your distribution, then you'll need to get GNU coreutils-8.13, apply the patch(it can be found in the src/ directory of the installed gem), and then replace the bin/tail binary in the directory of the installed gem with your version of the binary. ** P.S. If you know of a way to configure and compile ONLY the tail program in coreutils, please let me know! The reason I'm not building tail post gem installation is that it takes too long to configure && make because that actually builds every utilties in coreutils. For shipping logs to Redis, there's the `lines2redis` script that can be used as the output process in the pipe. For shipping logs from Redis to ElasticSearch, Log2json provides a `redis2es` script. Finally here's an example of Log2json in action: From a client machine: tail-log /var/log/{sys,mail}log /var/log/{kern,auth}.log | syslog2json | queue=jsonlogs \ flush_size=20 \ flush_interval=30 \ lines2redis host.to.redis.server 6379 0 # use redis DB 0 On the Redis server: redis_queue=jsonlogs redis2es host.to.es.server Resources that help writing log2json filters: - look at log2json.rb source and example filters - http://grokdebug.herokuapp.com/ - http://www.ruby-doc.org/stdlib-1.9.3/libdoc/date/rdoc/DateTime.html#method-i-strftime
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