tsdb

Bug Description
fix issues found by Coverity Scan in syncMain.c

To Reproduce
N/A

Expected Behavior
fix following issues:
| issue type | category | file path | function | line number |
| -------------------------- | -------------------------- | -------------------------- | -------------------------- |

Describe the Bug

The JSON response sent back over HTTP doesn't encode certain characters correctly.

For example, if a value in a string column contains the char \1 the byte value is copied verbatim in the response, breaking the client:

>>> json.loads('"\1"')
...
json.decoder.JSONDecodeError: Invalid control character at: line 1 column 2 (char 1)

Instead, we shou

示例

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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

Describe the requested changes:
This page could be simplified. The most impactful change: Do not start with the "Any (No JVM)" version. It forces us to bother users with the Java version, JAVA_HOME env. variable, etc. That's scary, especially for non-Java folks. If we start with the OS-specific versions and leave the "No JVM" version in some "f