[DocDB] Only allow one RBS session per tablet/peer combo · yugabyte/yugabyte-db#26144 | Good First Issue

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area/docdbgood first issuekind/enhancementpriority/medium

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描述

Jira Link: DB-15477

Description

https://phorge.dev.yugabyte.com/diffusion/YBDB/browse/master/src/yb/tserver/remote_bootstrap_service.cc$394

  MonoTime now = MonoTime::Now();
  const string session_id = Substitute("$0-$1-$2", requestor_uuid, tablet_id, now.ToString());

allows for multiple RBS sessions for the same follower. This should be unnecessary and can lead to ooms if left uncontrolled.

We should only allow at most 1 pending RBS session for a follower, and end previous sessions when a new session is created.

Issue Type

kind/enhancement

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貢獻者指南

研究方向: 研究 remote bootstrap service.cc 中的 RBS 會話管理。修改會話建立邏輯，在啟動新會話之前檢查是否已存在相同的 tablet/peer 組合的會話。如果存在，則先結束之前的會話再建立新會話。確保執行緒安全和過期會話的清理。
技術棧: cpp
領域: backenddatabasedistributed systems
議題類型: 功能
難度: 3
預計時間: 1-2 天
活動狀態: 新近可參與
清晰度: 清晰
前置要求: C++Distributed systemsYugabyteDB internals
新手友善度: 30