DEV Community: shikha

Alfresco Search Services Optimization: SOLR Indexing, Query Performance & Reindexing

shikha — Thu, 27 Aug 2026 03:30:00 +0000

As an Alfresco repository grows, search problems can become increasingly visible:

Newly uploaded documents take too long to appear in search
Full-text searches become slower
SOLR falls behind repository transactions
Reindexing takes hours or even days
JVM, disk or database utilization increases
Queries that worked well on smaller repositories become expensive

But optimizing Alfresco Search Services isn't simply about giving SOLR more memory.

Search performance is influenced by the complete processing chain:

Repository → Database → SOLR Trackers → Transformation → Index → Query → ACL Filtering

In my latest technical guide, I explore:

🔹 How Alfresco SOLR indexing works
🔹 Metadata, ACL and Content Tracking
🔹 Understanding Indexing Lag
🔹 Full-Text indexing and transformations
🔹 Query performance optimization
🔹 Wildcard and field-specific queries
🔹 JVM and filesystem-cache considerations
🔹 Disk I/O and storage performance
🔹 ACL impact on searches
🔹 Sharding for large repositories
🔹 When a full reindex is actually required
🔹 Reindexing large production repositories
🔹 Database and transformation impact during reindexing
🔹 Post-reindex validation
🔹 Production monitoring and troubleshooting

One important lesson

A search problem doesn't automatically mean:

“Delete the SOLR index and reindex everything.”

For large enterprise repositories, a full reindex can be an expensive operation.

Before rebuilding an index, investigate:

Indexing Lag → Trackers → Transformations → Custom Models → Permissions → JVM → Storage → Database → Network

Only then should reindexing become part of the recovery strategy.

Large Repository Reindexing

For large repositories, simply deleting the production index and rebuilding it can result in significant search downtime.

Where the supported architecture and available infrastructure permit it, a safer strategy can be:

Existing Search remains available → Build new index → Track/Reindex → Validate → Cut over

The objective isn't just to rebuild SOLR.

It's to rebuild it predictably, validate it properly and protect production search availability.

📖 Complete English guide:

https://shikhanirankari.blogspot.com/2026/08/alfresco-search-services-solr-optimization.html

🇫🇷 Version française:

https://shikhanirankari.blogspot.com/2026/08/optimisation-alfresco-search-services-solr.html

What has been the most challenging part of Alfresco Search in your environment — indexing lag, query performance, ACLs, reindexing or infrastructure sizing?

Event-Driven Microservices with Kafka & Spring Boot: Async Enterprise Integration

shikha — Tue, 25 Aug 2026 03:30:00 +0000

🚀 Event-Driven Microservices with Kafka & Spring Boot: Async Enterprise Integration

How can microservices communicate without creating tight synchronous dependencies?

In my latest technical guide, I explore how Apache Kafka + Spring Boot can be used to build scalable, loosely coupled, event-driven enterprise applications.

The article covers:

🔹 Event-Driven Architecture (EDA)
🔹 Kafka Producers & Consumers
🔹 Topics, Partitions & Consumer Groups
🔹 Asynchronous microservice communication
🔹 Event ordering & message keys
🔹 Idempotent consumers
🔹 Retry & Dead Letter Topics (DLT)
🔹 Transactional Outbox Pattern
🔹 Saga Pattern
🔹 Observability & security
🔹 Kafka vs synchronous REST communication

A key takeaway: adopting Kafka isn't simply about replacing REST with events.

A reliable event-driven architecture requires careful decisions around event contracts, partitioning, idempotency, failure recovery, transactional consistency and observability.

📖 Read the complete English guide:
https://shikhanirankari.blogspot.com/2026/08/event-driven-microservices-kafka-spring-boot_01069635397.html

🇫🇷 Version française:
https://shikhanirankari.blogspot.com/2026/08/microservices-event-driven-kafka-spring-boot.html

💬 How are you using Kafka in your architecture — event-driven microservices, data streaming, workflow integration, or asynchronous processing?

Originally published on Shikha Nirankari – Java, Spring Boot, Microservices, Kafka, BPM & Enterprise Architecture.

Alfresco Workflow Automation with Activiti BPMN: Enterprise Process Design

shikha — Thu, 20 Aug 2026 12:45:00 +0000

Enterprise Content Management becomes much more powerful when documents are connected to automated business processes.

A typical enterprise flow might look like:

Document → Review → Business Decision → Approval → Publish → Archive

In my latest technical guide, I explore how Alfresco and Activiti BPMN can be used to implement content-centric enterprise workflow automation.

The guide covers:

Alfresco workflow architecture
BPMN User Tasks and Service Tasks
Exclusive and Parallel Gateways
Document approval processes
Workflow Variables vs Alfresco Metadata
Task assignment and candidate groups
Timer Events and SLA escalation
Error and exception handling
REST API and enterprise integrations
Security and permissions
Audit and traceability
Reusable workflow design
Enterprise architecture best practices

A key architectural principle is to keep responsibilities separated:

Alfresco Content Services → Content

BPMN Workflow → Process Orchestration

Enterprise Services → Integration & Complex Business Logic

Read the complete technical guide:

English:
https://shikhanirankari.blogspot.com/2026/08/alfresco-workflow-automation-activiti-bpmn.html

French:
https://shikhanirankari.blogspot.com/2026/08/alfresco-workflow-activiti-bpmn-automatisation.html

Camunda vs Flowable vs jBPM: Which BPM and Workflow Engine Should You Choose?

shikha — Tue, 18 Aug 2026 21:30:00 +0000

⚙️ Camunda vs Flowable vs jBPM — which BPM engine?

🔵 Camunda → Orchestration
🟢 Flowable → Case Management
🟠 jBPM → Business Rules

Originally published on Learn IT with Shikha.

Read the original article and more enterprise technology tutorials:

EN: https://shikhanirankari.blogspot.com/2026/08/camunda-vs-flowable-vs-jbpm.html

FR: https://shikhanirankari.blogspot.com/2026/08/camunda-vs-flowable-vs-jbpm-comparatif.html

BPMN #Camunda

🚀 Kafka Performance Tuning: Producer, Consumer & Broker Optimization

shikha — Tue, 18 Aug 2026 12:45:00 +0000

Kafka can handle enormous event volumes, but achieving consistent production performance requires tuning the complete pipeline—not just a single configuration property.

My latest guide covers:

Producer batching, linger.ms, compression and acknowledgements
Consumer fetch settings and lag optimization
Partition planning and consumer parallelism
Broker disk, network and thread considerations
Replication and durability
Throughput vs latency trade-offs
Kafka monitoring metrics
A practical production tuning checklist

The core approach:

Measure → Identify Bottleneck → Tune → Benchmark → Monitor

Full technical guide:
https://shikhanirankari.blogspot.com/2026/08/kafka-performance-tuning-guide.html

French version:
https://shikhanirankari.blogspot.com/2026/08/optimisation-performance-kafka.html

kafka #apachekafka #microservices #eventdriven #java

Event-Driven Microservices with Kafka & Spring Boot: Async Enterprise Integration Guide

shikha — Thu, 13 Aug 2026 04:30:00 +0000

Modern microservices shouldn't depend entirely on synchronous REST calls.

In this guide, I explore how Apache Kafka and Spring Boot can be used to build scalable, loosely coupled, event-driven microservices for enterprise applications.

You'll learn about:

⚡ Event-driven architecture
📨 Kafka producers and consumers
🔄 Asynchronous microservice communication
🏗️ Loose coupling and scalability
☕ Spring Boot + Kafka integration
🛡️ Reliability and enterprise integration patterns

Read the complete guide:

🇬🇧 English
https://shikhanirankari.blogspot.com/2026/08/event-driven-microservices-kafka-spring-boot.html

🇫🇷 Français
https://shikhanirankari.blogspot.com/2026/08/microservices-evenementiels-kafka-spring-boot.html

If you're building Java microservices, I'd be interested to hear how you're using Kafka in your architecture.

🔐 Alfresco Authentication & SSO Integration: LDAP, SAML & Keycloak

shikha — Tue, 11 Aug 2026 06:00:00 +0000

Enterprise Alfresco environments often need more than basic username/password authentication.

In my latest technical guide, I explore how Alfresco Content Services can fit into an enterprise identity and SSO architecture using:

• LDAP / Active Directory
• SAML-based authentication
• Keycloak
• Single Sign-On (SSO)
• Enterprise Identity & Access Management
• Authentication flow and integration considerations

The article also looks at when LDAP authentication is sufficient and when an Identity Provider and SSO architecture becomes a better fit.

If you're working with Alfresco administration, architecture, upgrades or enterprise integrations, this should provide a useful starting point.

📖 Full technical guide:
https://shikhanirankari.blogspot.com/2026/08/alfresco-authentication-sso-ldap-saml-keycloak.html

I’d be interested to hear what authentication architecture you're using with Alfresco — LDAP/AD, SAML, Keycloak or another IdP?

Kafka Consumer Group Architecture Explained (Partitions, Offsets & Rebalancing)

shikha — Thu, 06 Aug 2026 00:00:00 +0000

Kafka Consumer Group Architecture Explained (Partitions, Offsets & Rebalancing)

If you're working with Apache Kafka, understanding Consumer Groups is essential for building scalable and fault-tolerant event-driven applications.

Many developers learn how to produce and consume messages but still struggle with concepts such as:

How Kafka assigns partitions to consumers
Why offsets are important
What happens during consumer rebalancing
How Kafka scales message processing horizontally
Common mistakes when designing consumer groups

To make these concepts easier to understand, I created a detailed visual guide that explains the complete Consumer Group architecture using practical diagrams and examples.

In this guide you'll learn
Consumer Groups
Topic Partitions
Consumer Assignment
Offset Management
Consumer Rebalancing
Leader Election
Horizontal Scalability
Best Practices
Performance Considerations

Whether you're preparing for interviews or building enterprise event-driven systems, I hope this guide helps clarify how Kafka consumers work internally.

📖 English Version

https://shikhanirankari.blogspot.com/2026/05/kafka-consumer-group-architecture-partitions-offsets-rebalancing.html

🇫🇷 French Version

https://shikhanirankari.blogspot.com/2026/08/architecture-consumer-groups-kafka-partitions-offsets-rebalancing.html

I'd love to hear how your team manages Kafka Consumer Groups in production. Feel free to share your experiences or suggestions in the comments.

Spring Boot Database Optimization + Alfresco CMIS API Guide

shikha — Sun, 31 May 2026 05:30:00 +0000

Enterprise backend systems require efficient database access and scalable integration strategies.

I’ve published 2 practical guides covering:

✔ Spring Boot database optimization & query tuning
✔ Alfresco CMIS API queries & metadata integration
✔ Enterprise backend performance patterns

🔗 Read full blogs:
https://shikhanirankari.blogspot.com/2026/05/spring-boot-database-optimization-jpa-connection-pooling-query-tuning.html

https://shikhanirankari.blogspot.com/2026/05/alfresco-cmis-api-queries-metadata-external-integration.html

java #springboot #backend #database

Spring Boot Database Optimization + Alfresco CMIS API Guide

shikha — Fri, 29 May 2026 05:30:00 +0000

Enterprise backend systems require efficient database access and scalable integration strategies.

I’ve published 2 practical guides covering:

✔ Spring Boot database optimization & query tuning
✔ Alfresco CMIS API queries & metadata integration
✔ Enterprise backend performance patterns

🔗 Read full blogs:
https://shikhanirankari.blogspot.com/2026/05/spring-boot-database-optimization-jpa-connection-pooling-query-tuning.html

https://shikhanirankari.blogspot.com/2026/05/alfresco-cmis-api-queries-metadata-external-integration.html

java #springboot #backend #database

Spring Boot Database Optimization + Alfresco CMIS API Guide

shikha — Thu, 28 May 2026 05:30:00 +0000

Enterprise backend systems require efficient database access and scalable integration strategies.

I’ve published 2 practical guides covering:

✔ Spring Boot database optimization & query tuning
✔ Alfresco CMIS API queries & metadata integration
✔ Enterprise backend performance patterns

🔗 Read full blogs:
https://shikhanirankari.blogspot.com/2026/05/spring-boot-database-optimization-jpa-connection-pooling-query-tuning.html

https://shikhanirankari.blogspot.com/2026/05/alfresco-cmis-api-queries-metadata-external-integration.html

java #springboot #backend #database

Spring Boot Database Optimization + Alfresco CMIS API Guide

shikha — Wed, 27 May 2026 05:30:00 +0000

Enterprise backend systems require efficient database access and scalable integration strategies.

I’ve published 2 practical guides covering:

✔ Spring Boot database optimization & query tuning
✔ Alfresco CMIS API queries & metadata integration
✔ Enterprise backend performance patterns

🔗 Read full blogs:
https://shikhanirankari.blogspot.com/2026/05/spring-boot-database-optimization-jpa-connection-pooling-query-tuning.html

https://shikhanirankari.blogspot.com/2026/05/alfresco-cmis-api-queries-metadata-external-integration.html

java #springboot #backend #database