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Filters, also known as "groks", are used to query a log stream. They are provided in a configuration file, that also configures source stream and output streams. Since they are stored in a file, they can be under version control and changes can be reviewed (for example, as part of a Git pull request). See More
Alerts can be created based on tags or by setting criteria via the intuitive and powerful search capabilities of LogEntries. To not flood notifications it's possible to specify limitations for alerts, such as how many times an hour an event has to happen for it to trigger a notification. Notifications can be sent by email, mobile messaging or via webhooks (webhooks are sent server in real-time, so there's no need for polling for changes). See More
In Live Tail mode events and searches update in real-time. Live Tail mode can be used in Aggregate View, that allows selecting a combination of logfiles to be viewed together, and with any log groups created. These events are supplemented with tags to allows getting an overview of current events quickly at a glance. See More
LogEntries allows each logfile to have a separate dashboard of various graphs & widgets put together for visualizing data. A dashboard is put together by dragging & dropping graphs and widgets into place. Graphs and widgets include charts, tables, gauges, event counts among other forms of data visualization. See More
LogEntries has human readable, intuitive and powerful search with support for logical expressions, comparison expressions, regular expressions and ability to search based on field, group based on approximations over time, use functions such as count, sum, average and unique as well as save searches. See More
Sentry is a completely open source tool. It's free to use if you want to run it on your own. If you want to avoid the overhead of running and maintaining another server, it also has a hosted version available at www.getsentry.com See More
Logs can be colorized by installing Stylish, a browser extension for Chrome and Firefox that overrides CSS stylesheets, and writing a custom stylesheet. Papertrail's log entries have various attributes that can be used to change css properties for specific programs or systems, or based on message contents. Logs can also be colorized within the actual logs by adding ANSI escape codes (will override user-specific colorization). See More
You have to install a plugin on each host to collect logs, the collector is 89MBs and is written in Java. there's no reason to install a Java tool to send syslog data when Linux already does that natively. The memory footprint for Java-based apps is way too high and, in this case, completely unnecessary. See More
Here's an example: _sourceCategory=*windows* _sourceName=Security (4771 OR 4768 OR 4776 OR 4625) | parse regex "EventIdentifier = (?<event_id>\d+?);" | parse regex "ComputerName = \"(?<hostname>.+?)\"" | parse regex "(?:Result|Failure|Error) Code:.+?(?<result_code>0x[A-Fa-f\d]+)\b" nodrop | where result_code !="0x0" AND event_id in ("4771", "4768", "4776","4625") | count by hostname See More
Logs get into Scalyr either via the lightweight (and open source) Scalyr Agent (which sits on your servers and pipes logs up to Scalyr), or via a large number of supported direct external input streams, including AWS-based sources (CloudWatch metrics, CloudTrail logs, ELB logs, S3 logs, etc.), Heroku/AppHarbor logplex drains, a Java API, or an HTTP API See More
Beyond simple rules-based alerting, Rocana Ops creates statistical models for each of the metrics you want to track and evaluates as data streams in to provide nearly instantaneous feedback on how your systems are performing. Unique WARN (Weighted Analytic Risk Notifications) Scores indicate components that are trending to the good or bad. Users can create custom metrics, which get evaluated just the same as "out-of-the-box" metrics. See More
Collect and analyze multiple TBs of data per day, built on Hadoop components Rocana Ops is a highly-distributed system offering massive scalability using commodity hardware. Rocana has customers collecting 10+ TBs of log data per day. Rocana One free option provides up to 1TB of daily data volume for free. See More
Amazing live tail, fast search, and reliable service. See More
Cloudlytics can gather logs from Amazon's S3, CloudFront, CloudTrail and ELB services and provide insight into access patterns, API calls, requests made to load balancer as well as identify unauthorized access attempts, spam attacks, and help manage expenditure. See More
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