11-12-2023 21:20:03.288 +0900 ERROR CacheManager [3953110 TcpChannelThread] - Failed to check receipt for cache_id=""dma|ioapratraffic~434~9DF98E46-8A38-48F5-9EFB-90D0467F1463|89513704-8894-4CFC-AC58-9BF7D36B3B59_DM_Splunk_SA_CIM_Compute_Inventory"" err=Service Unavailable
Before upgrading, the following error were frequently output from the indexer, but after upgrading, they were still output, but the number of error has drastically decreased.
version upgarded from 8.2.1 to 8.2.7