yugabyte/yugabyte-db

[docdb] Add gflag to control size of LogIndex number of elements

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#3,744 opened on Feb 26, 2020

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area/docdbgood first issuehelp wantedkind/enhancementpriority/medium

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Description

Jira Link: [DB-399](https://yugabyte.atlassian.net/browse/DB-399) Currently, it defaults to 1M items, each item being 3 bytes, so this leads to a 24mb index file, for each tablet.

Contributor guide

Research direction
Locate the hardcoded LogIndex size in docdb and add a new gflag to make it configurable.
Tech stack
c
Domain
backenddatabase
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++gflags
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40