tsdb

Bug Description
taosBenchmark subscribe crash

To Reproduce
Steps to reproduce the behavior:

1. Build taosd, taosBenchmark in latest develop branch
2. go to 'TDengine/src/kit/taos-tools/example'
3. execute taosBenchmark -f insert_csv.json
4. execute taosBenchmark -f subscribe.json

Expected Behavior
taosBenchmark -f subscribe.json should not crash

Screenshots
N/A

Scenario

A user is ingesting some data (~300M rows) into a table with 270K distinct symbol values. For each of these 270K symbols we end up with at least one posix_fallocate() necessary to add a new value block. See the below flamegraph - it's quite illustrative.

An important part of the scenario is non-default index block capacity which is set to 2048. With the default capacity (w

示例

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• 使用场景和经验分享：你们最看重夜莺的哪些功能，解决一个什么样的问题，以及使用规模和范围，使用夜莺监控构建企业级监控体系的过程中，有哪些好的经验分享。
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The store-gateway pkg/storegateway/bucket.go was originally forked from Thanos and includes some logic which we don't use, and makes code more complicated.

Blocks are grouped into bucketBlockSet based on their external labels. However, we don't inject external labels in the query response, and in Mimir it's the querier to control which blocks a store-gateway should query. I think we should