I like that Scalir allows me access into my logs via API or CLI in multiple languages. It also offers powerful searching capabilities which makes finding issues easy when they do occur. The UI does not have all of its features available out of the box (for example, search filters are missing). There was a time where we could see what errors were occurring but now those messages disappear from our dashboard after 30 days instead of being able to view them indefinitely. We've been using Scalyr since 2016 as part of monitoring infrastructure at an enterprise level with many servers across several data centers around the world.
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