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                                            georgehao

when ingester starting, ingester increase thousands goroutines

``` goroutine profile: total 63948 63873 @ 0x43a7c5 0x44b2e5 0x44b2ce 0x46c5a7 0x47b825 0x47cf90 0x47cf22 0x9fc995 0x9fc725 0x9f816a 0x1fdd276 0x1fd292d 0x16ede89 0x202eee3 0xb8dda3 0x201b256 0xb8dda3 0xb91b7a 0xb8dda3 0xccd3bd 0xb8dda3 0xcca2b8 0xb8dda3...

when ingester starting, ingester increase thousands goroutines

@bboreham The -ingester.instance-limits.max-inflight-push-requests option is not a good idea. The goroutine become thousands only when ingester starting. But If the Ingester started, the goroutine only just 100. So just let...

when ingester starting, ingester increase thousands goroutines

also this is may be another way. like #4408. if can split many tenant and can query at once. when ingester pushed, there may be many db of tenant. this...

when ingester starting, ingester increase thousands goroutines

@bboreham yes, the pprof profile is release-1.8。I copy the wrong one. yeah, I say `MemPostings.addFor()`. #### seriesID increase it seem that seriesID is created and increased by prometheus tsbd.Head :...

【AT】build undo log by Insert On Duplicate Key Update target SQL

@刘绍

optimize init function

我来搞这个

【AT】add undo log manager-flush undo log func

@xubaisheng

【AT】异步执行器

assign to me

【AT】build undo log by multi update target SQL

to me

common.MergeURL占用内存一直上升

目前是有内存泄露的问题吗，其实上面那个图和top其实说明不了啥问题，如果有内存泄露的情况，发个复现步骤吧