Wiki Article · Cinematic

Elasticsearch Replication

Elasticsearch replication wo mechanism hai jisme data ki copies (replicas) multiple nodes par…

Overview

Elasticsearch Replication — Quick Facts

📌

Property: Detail

🎯

Topic: Elasticsearch Replication

⚡

Category: Database Availability / Search…

🔑

Mechanism: Shard-level replication (primary →…

Topic 1

Kya Hai Replication

💡

Replication shard level par hoti…

🔑

Primary shard = write operations…

⚡

Replica shard = primary ki exact…

🎯

Client reads primary ya replica —…

Topic 2

Primary vs Replica Shards

💡 | Aspect | Primary Shard | Replica Shard | |---|---|---| | Role | First copy of data —…

Topic 3

Replication Ka Kaam Kaise Hota Hai

🎯 `mermaid sequenceDiagram participant Client participant Coord as Coordinating Node…

Topic 4

Failover Mechanism

💡

Cluster health: Green → Yellow

🔑

Data safe hai (primary exists)

⚡

Elasticsearch wait karta hai node…

🎯

Search/write operations continue —…

Topic 5

Read Scaling Through Replicas

💡

Ek primary + 2 replicas = 3 copies…

🔑

Elasticsearch automatically search…

⚡

Zyada replicas = zyada concurrent…

🎯

Write performance par thoda…

Topic 6

Replication Configuration

💡

number_of_shards: 5 — 5 primary…

🔑

number_of_replicas: 1 — 1 replica…

⚡

number_of_replicas kisi bhi waqt…

🎯

Elasticsearch automatically naye…

Topic 7

Replication Scenarios

Topic 8

Cross-Cluster Replication (CCR)

💡

Geo-replication — US cluster ka…

🔑

Disaster recovery — primary…

⚡

Centralized reporting — multiple…

🎯

Leader index (source cluster) →…

Topic 9

Monitoring Replication Health

💡

Not enough nodes for replicas

🔑

Disk watermark reached (node ki…

⚡

Shard allocation rules (awareness…

🎯

Node recently added, allocation in…

Topic 10

Best Practices

💡 1. Production me minimum 1 replica — kabhi 0 mat rakho (data loss risk) 2. Sufficient…

Comparison

Primary vs Replica Shards

⚖️

Role: First copy of data — all writes…

⚖️

Write Operations: Directly writes…

⚖️

Read Operations: Read queries serve…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Elasticsearch Replication ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Elasticsearch Replication ka 'Topic' kya hai?

Complete! 🎉

Elasticsearch Replication Complete!

Aliens Wiki · HIEN · Cinematic Knowledge

✅