Storage: Refine logging about reading snap, place index, index to wait

[JaySon-Huang]

What problem does this PR solve?

Issue Number: ref #8864

Problem Summary:

What is changed and how it works?

• Add the index to wait in learner read logging
• Add logging about place index result and snapshot rows/deletes

[2024/04/21 00:33:40.417 +08:00] [DEBUG] [Segment.cpp:2422] ["Begin segment getReadInfo <segment_id=1 epoch=1 range=[-9223372036854775808,9223372036854775807)>"] [thread_id=1]
[2024/04/21 00:33:40.418 +08:00] [DEBUG] [StableValueSpace.cpp:487] ["start_ts: 18446744073709551615, enable_handle_clean_read: false, is_fast_mode: false, enable_del_clean_read: false"] [source="segment_id=1 epoch=1"] [thread_id=1]
[2024/04/21 00:33:40.418 +08:00] [DEBUG] [DMFilePackFilter.cpp:118] ["RSFilter exclude rate: 0.00, after_pk: 2, after_read_packs: 2, after_filter: 2, handle_ranges: {[1,9223372036854775807)}, read_packs: 0, pack_count: 2"] [thread_id=1]
[2024/04/21 00:33:40.454 +08:00] [DEBUG] [Segment.cpp:2682] ["Finish segment ensurePlace, read_ranges={[-9223372036854775808,9223372036854775807)} placed_items=1 shared_delta_index=<placed_rows=0 placed_deletes=0 tree_entries=0 tree_inserts=0 tree_deletes=0> my_delta_index=<placed_rows=8192 placed_deletes=0 tree_entries=8192 tree_inserts=8192 tree_deletes=0> <segment_id=1 epoch=1 range=[-9223372036854775808,9223372036854775807)>"] [thread_id=1]
[2024/04/21 00:33:40.455 +08:00] [DEBUG] [Segment.cpp:2449] ["Finish segment getReadInfo, my_delta_index=<placed_rows=8192 placed_deletes=0 tree_entries=8192 tree_inserts=8192 tree_deletes=0> fully_indexed=true read_ranges={[-9223372036854775808,9223372036854775807)} snap={stable_rows=16384 persisted_rows=8192 persisted_dels=0 persisted_cfs=1 mem_rows=0 mem_dels=0 mem_cfs=0} <segment_id=1 epoch=1 range=[-9223372036854775808,9223372036854775807)>"] [thread_id=1]
[2024/04/21 00:33:40.455 +08:00] [DEBUG] [Segment.cpp:2461] ["Segment updated delta index, my_delta_index=<placed_rows=8192 placed_deletes=0 tree_entries=8192 tree_inserts=8192 tree_deletes=0> <segment_id=1 epoch=1 range=[-9223372036854775808,9223372036854775807)>"] [thread_id=1]

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[JaySon-Huang]

/run-all-tests

[JaySon-Huang]

/run-all-tests

[CalvinNeo]

lgtm

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CalvinNeo, JinheLin

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-04-21 00:55:05.252412262 +0000 UTC m=+731524.363458709: ☑️ agreed by JinheLin.
• 2024-04-22 03:01:01.54639451 +0000 UTC m=+825480.657440959: ☑️ agreed by CalvinNeo.