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This message serves as a preliminary inquiry to the follower, seeking\r\nconfirmation of its readiness to receive a snapshot. Upon receiving the message,\r\nthe follower consults its concurrency limiter and returns a response to the\r\nleader. The leader will only proceed to generate the snapshot after the precheck\r\nis passed. \r\n\r\nA passed precheck means the leader has reserved a spot on the follower so the\r\nsubsequent snapshot send should succeed. The reservation has a TTL and the\r\nleader is supposed to complete the snapshot generation and transmission within\r\nthe TTL timeframe.\r\n\r\nNote that this commit implements the concurrency limiter without actually using\r\nit. 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This issue is resolved by implementing a memory quota for\r\ncoprocessors, which rejects incoming requests when the memory quota is full.\n\nSigned-off-by: Neil Shen \n\nCo-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>","shortMessageHtmlLink":"coprocessor: limit concurrent requests by memory quota (#16662)"}},{"before":"2a865bbdef82e8560092f424aa47439e755d44b9","after":"3c2cbcf24e326ea917736538b05605c8143b6e1d","ref":"refs/heads/master","pushedAt":"2024-05-16T08:56:43.000Z","pushType":"pr_merge","commitsCount":1,"pusher":{"login":"ti-chi-bot[bot]","name":null,"path":"/apps/ti-chi-bot","primaryAvatarUrl":"https://avatars.githubusercontent.com/in/214286?s=80&v=4"},"commit":{"message":"raftstore: fix a bug where snapshot file is not deleted in time (#16977)\n\nclose tikv/tikv#16976\n\nThe issue is that if a leader fails to send a snapshot, it doesn't delete the \r\nsnapshot file which may accumulate and waste disk space. The idle snapshot \r\nfiles will eventually be GCed, but that might take hours. The commit ensures \r\nthat the snapshot file is also deleted on the error path. A new integration \r\ntest was added which would fail without the fix.\n\nSigned-off-by: Bisheng Huang \n\nCo-authored-by: lucasliang \nCo-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>","shortMessageHtmlLink":"raftstore: fix a bug where snapshot file is not deleted in time (#16977)"}},{"before":"9d0d9957b07cddc12f9bda67aa90bd5aa4e20709","after":"2a865bbdef82e8560092f424aa47439e755d44b9","ref":"refs/heads/master","pushedAt":"2024-05-16T06:49:15.000Z","pushType":"pr_merge","commitsCount":1,"pusher":{"login":"ti-chi-bot[bot]","name":null,"path":"/apps/ti-chi-bot","primaryAvatarUrl":"https://avatars.githubusercontent.com/in/214286?s=80&v=4"},"commit":{"message":"server: Support explicitly getting health feedback information by calling RPC (#17008)\n\nclose tikv/tikv#16297\n\nThis PR makes TiKV support explicitly getting health feedback information by calling RPC. Both non-batched mode and batched mode (using BatchCommands stream) are supported.\r\nThere's some special behavior when used in batched RPC mode: The BatchCommandsResponse that contains the response of getting health feedback will always have feedback information attached (in the same way as how it's attached without being explicitly requested), and the attached information and the information carried in each single GetHealthFeedbackResponse-s is the same.\n\nSigned-off-by: MyonKeminta \n\nCo-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>","shortMessageHtmlLink":"server: Support explicitly getting health feedback information by cal…"}},{"before":"06eed732641ad47aec44dd58aa3d64e18c1c5ee8","after":"9d0d9957b07cddc12f9bda67aa90bd5aa4e20709","ref":"refs/heads/master","pushedAt":"2024-05-16T05:22:13.000Z","pushType":"pr_merge","commitsCount":1,"pusher":{"login":"ti-chi-bot[bot]","name":null,"path":"/apps/ti-chi-bot","primaryAvatarUrl":"https://avatars.githubusercontent.com/in/214286?s=80&v=4"},"commit":{"message":"log_backup: fix panic when encountered error during resuming (#17021)\n\nclose tikv/tikv#17020\n\nSpawn thread from the thread pool directly. 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