br: deliver miscellaneous issues to release-8.5 #64880
Description
Enhancement
Though we have developed some features recently, the next LTS major version isn't scheduled yet. To delivery those features, we need to pick them to release-8.5 (Thankfully most changes are in the br binary, the risky is under control (hopefully!).)
Also some of bug fixes will be picked, they are:
- br: retry to set tiflash replicas #63706
- br: fix nilpointer if no schema to backup #63721
- br: concurrently set tiflash replicas #63360
- br: fix alloc test for next gen #63368
- br: fix version compatibility #62708
- br/streamhelper: added a guard for dropping subscriber #62944
- br: add global variable to control checkpoint lag limit #62680
- br: allow append migration to work with restore #62433
- br/stream_helper: make dial timeout shorter #62619
- br: fix backup schemas progress if skip checksum #60150
- metrics: fix connect issue when tls enabled #61122
- br: fix the last checkpoint from tidb advancer owner is not updated in PD #61032
- br: concurrent limitation for sending backup requests #60661
- backup: adjust parameter description #60652
- br: reduce the memory consumption of backup ranges #60174
- br: set default restore checksum to false #60328
- br: fix flaky test TestGCServiceSafePoint #58628
- br: fix unit test #60177
- test: fix concurrency issue in pitr_collector_test #60078
- br: provide a storage target option for BR restore checkpoint data #59579
- br: fix unit test #59924
- log restore: fix the bottleneck of btree map #59896
- br: mem dump when about to OOM #59234
- br: clone backend options #59549
- storage/s3: add retry for h2 disconnection errors #59558
- backup: use resolveLocksForRead to get ignore locks #55776
- br: improve summary and progress visualization of br #56612
- br: output backup error from TiKV #58671
- br: add chaos testing for advancer owner #58183
- br: enable checksum in test #58489
- br: separate nested logic of table rewrite and building id map #58112
- br: fix flaky test
TestConcurrentLock#57591 - test: fix the data race in restore test #57762
- br: fix data race for the function IsLeaseExpired #59098