Solution

Follow these steps to identify and troubleshoot the cause.

  1. Check if Redis Used Memory is increasing or decreasing by going to one.newrelic.com > Infrastructure > Third-party services page, select the Redis dashboard. If it is stable or increasing, submit a support ticket to have your cluster upsized, or increase the maxmemory limit to the next level.

  2. If you cannot identify the cause of increased Redis memory consumption, review recent trends to identify issues with recent code deployments or configuration changes (for example, new customer groups and large changes to the catalog). It is recommended that you review the past seven days of activity for any correlations in code deployments or changes.

  3. Check for misbehaving third party extensions:

    • Try to find a correlation with recently installed third party extensions and the time the issue started.
    • Review extensions which potentially could affect the Adobe Commerce cache and cause the cache to grow quickly. For example, custom layout blocks, overriding cache functionality, and storing large amounts of data in cache.
  4. If there is no evidence of misbehaving extensions, Install latest patches to fix Redis issues for Adobe Commerce on cloud infrastructure. If the above steps do not help you identify or troubleshoot the source of the issue, consider enabling L2 cache to reduce network traffic between the app and Redis. For general information on what is L2 cache, refer to L2 caching in the Adobe Commerce application in our Configuration Guide. To enable L2 cache for cloud infrastructure, try the following:

    • Upgrade ECE Tools if below 2002.1.2 version.
    • Configure L2 Cache by using Use REDIS_BACKEND variable and updating .magento.env.yaml file:
    stage:
       deploy:
           REDIS_BACKEND: '\Magento\Framework\Cache\Backend\RemoteSynchronizedCache'
    
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