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# Clarification and motivation
My go-to cache library for Go so far has been bluele/gcache - probably much less performant than many other alternatives but it has a very handy helper function that …
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[LRUQueryCache](https://github.com/apache/lucene-solr/blob/master/lucene/core/src/java/org/apache/lucene/search/LRUQueryCache.java) appears to play a central role in Lucene's performance. There are ma…
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Hi,
When we ran the `composer update` then minor version is updated of `colinmollenhour/cache-backend-redis` and `colinmollenhour/credis` then we received the large number of performance issues in …
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### Description
The following code:
```
opcache.enable = 1
opcache.enable_cli = 1
opcache.file_update_protection = 0
opcache.validate_timestamps = 0
opcache.validate_permission = 0
opcac…
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## Current situation
stable.release.flatcar-linux.net (and other channels) have been unavailable for several hours (dropping connections)
```
deneb ~ ] curl -vvv https://stable.release.flatca…
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### Steps to reproduce the problem
1. Share https://www.jefftk.com/test/no-robots or another link which prohibits crawlers via robots.txt
### Expected behaviour
Mastodon instances fetch https://w…
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Feature request: Implement "something" against a webserver stampede.
If many Requests are made it seems everyone ist forwarded to the webserver. Especially with "expensive" requests it would be inter…
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This issue is to explore if the same issue as described in [Stampedes and cold cache performance issues with css/js aggregation](https://www.drupal.org/project/drupal/issues/1014086) exists in Backdro…
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This is marked as a proposal, but I'd like it to start out as a discussion. Although I believe the need is clear, the correct design is not at all obvious.
Many applications have caches that they c…
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*Title*: Stampede of DNS requests when TTL expires causes strain on upstream DNS servers
*Description*:
We have seen some users that have many DNS clusters, with respect_dns_ttl=true. When the TTL…