Migrate From Apache NiFi 1.x to 2.x
with Zero Downtime
The upgrade from NiFi 1.x to 2.x affects every pipeline, every processor, every flow, making it a detail-oriented and expert-led process. Get it done in 6 to 8 weeks by India's leading Apache NiFi contributors, with zero data loss guaranteed.
We are Open source Code Contributor
Zero-Day Vulnerability Fixes
Critical Vulnerability Assessment
Roadmap & Recommendations
SLA-Backed Technical Support
Zero-Day Vulnerability Fixes
Critical Vulnerability Assessment
Roadmap & Recommendations
SLA-Backed Technical Support
Our NiFi Migration
Expertise
From legacy cluster assessment to fully modernized
cloud-native
deployment, our Apache NiFi upgrade service handles every layer of your migration.
Upgrade Automation
We perform automated pre-migration scans to detect incompatible components early and minimize risks. Our NiFi upgrade experts leverage the Apache NiFi Toolkit CLI for bulk flow exports and imports, while implementing CI/CD pipelines for consistent environment promotion with automated smoke tests validating data parity post-migration.
NiFi Cluster Modernization
Multi-platform deployment across on-premise, Docker, and Kubernetes (EKS, AKS, GKE). We migrate ZooKeeper coordination to native Kubernetes and implement Stateless NiFi with sidecar configurations for cloud-native resilience.
Flow Analysis and Migration
Automated conversion of XML templates to JSON-based flow definitions. We handle full component mapping, replacing deprecated 1.x processors, Variable Registry bulk-converted to Parameter Contexts, and flows standardized via NiFi Registry or GitHub/GitLab.
Seamless Cluster Upgrade
Mandatory stepwise bridge upgrades required for a clean NiFi 2.0 upgrade are managed end-to-end. Scripted conversion of nifi.properties and authorizers.xml with Blue-Green deployment for zero downtime and modern TLS/OIDC/SAML security migration.
Custom Processor and API Migration
NAR refactoring to port custom Java code to the Apache NiFi 2.x API with full Java 21 compatibility. Python processor conversion using the Native Python Processor API, backed by automated regression testing to validate all custom extensions.
Enterprise to Open Source Transition
Full vendor decoupling from Cloudera CFM or HDF to pure Apache NiFi environments. We map enterprise-only processors to open-source equivalents, eliminate vendor license fees, and harden security on the open-source stack.
Post-Migration Performance Tuning
Migration is only half the job. We tune your NiFi 2.x environment for production load: JVM heap sizing, concurrent task configuration, backpressure thresholds, and throughput optimization, so your pipelines run faster on 2.x than they ever did on 1.x.
Our NiFi Migration Expertise
From legacy cluster assessment to fully modernized cloud-native deployment, our Apache NiFi upgrade service handles every layer of your migration.
Upgrade Automation
We perform automated pre-migration scans to detect incompatible components early and minimize risks. Our NiFi upgrade experts leverage the Apache NiFi Toolkit CLI for bulk flow exports and imports, while implementing CI/CD pipelines for consistent environment promotion with automated smoke tests validating data parity post-migration.
NiFi Cluster Modernization
Multi-platform deployment across on-premise, Docker, and Kubernetes (EKS, AKS, GKE). We migrate ZooKeeper coordination to native Kubernetes and implement Stateless NiFi with sidecar configurations for cloud-native resilience.
Flow Analysis and Migration
Automated conversion of XML templates to JSON-based flow definitions. We handle full component mapping, replacing deprecated 1.x processors, Variable Registry bulk-converted to Parameter Contexts, and flows standardized via NiFi Registry or GitHub/GitLab.
Seamless Cluster Upgrade
Mandatory stepwise bridge upgrades required for a clean NiFi 2.0 upgrade are managed end-to-end. Scripted conversion of nifi.properties and authorizers.xml with Blue-Green deployment for zero downtime and modern TLS/OIDC/SAML security migration.
Custom Processor and API Migration
NAR refactoring to port custom Java code to the Apache NiFi 2.x API with full Java 21 compatibility. Python processor conversion using the Native Python Processor API, backed by automated regression testing to validate all custom extensions.
Enterprise to Open Source Transition
Full vendor decoupling from Cloudera CFM or HDF to pure Apache NiFi environments. We map enterprise-only processors to open-source equivalents, eliminate vendor license fees, and harden security on the open-source stack.
Post-Migration Performance Tuning
Migration is only half the job. We tune your NiFi 2.x environment for production load: JVM heap sizing, concurrent task configuration, backpressure thresholds, and throughput optimization, so your pipelines run faster on 2.x than they ever did on 1.x.
Industries We've Served
NiFi environments are not built the same way across industries. The pipelines, compliance requirements, and failure costs differ significantly. Our upgrade approach is scoped around what your industry actually runs.
Telecom
Carrier-scale CDR processing and network telemetry pipelines migrated without touching production uptime.
Healthcare
HIPAA-compliant HL7 and FHIR environments upgraded with full data integrity and audit continuity preserved.
Banking and Financial Services
Transaction and regulatory reporting pipelines migrated to Blue-Green deployment, so nothing stops moving.
Fintech
Fraud detection and payment flows upgraded to close CVE exposure without rebuilding risk-critical pipelines.
Manufacturing
Custom processor audits and shop floor integrations are handled before a single change touches production.
Logistics and Supply Chain
Shipment tracking and warehouse telemetry are kept live throughout with our stepwise upgrade approach.
Retail and E-commerce
Migrations are planned around your business calendar so inventory and POS pipelines never go dark at peak.
Technology and SaaS
Full infrastructure modernization across Kubernetes, APIs, and multi-tenant environments as part of the upgrade.
How We Help You Migrate From NiFi 1.x to 2.x
Assessment and Planning
- Evaluate current state: on-premise 1.x environment, legacy Java, and existing cluster configuration
- Plan the full roadmap for upgrading from NiFi 1.x to 2.x via the mandatory 1.28.1 bridge
- Define target architecture across Kubernetes (AKS, EKS, GKE) with Java 21
- Assess legacy security configuration and identify proprietary dependencies
- Inventory all flows, including undocumented ones
- Review existing operations and manual processes
Preparation and Analysis
- Flow analysis and XML to JSON template transformation
- Pre-migration scanning for incompatible components and deprecated processors
- Analyze custom NARs and processor dependencies
- Develop Ansible automation scripts for the upgrade
- Plan CLI orchestration strategy using Apache NiFi Toolkit
- Plan security migration to modern TLS/OIDC
Migration and Execution
- Multi-platform deployment to cloud-native Kubernetes environments
- Stepwise cluster upgrade from NiFi 1.x to 2.x
- Blue-Green zero-downtime deployment
- Component mapping and deprecated processor replacement
- Custom processor refactoring for Java 21 and Python
- Enterprise to open source migration with OIDC/SAML setup
Optimization and Modernization
- Java 21 JVM tuning and cloud-native architecture optimization
- NiFi Registry integration for version-controlled flow management
- CI/CD pipeline setup for a consistent environment promotion
- Automated disaster recovery and backup configuration
- Data parity, smoke testing, and validation
- Security hardening and license optimization
How We Help You Migrate From NiFi 1.x to 2.x
Every Apache NiFi upgrade service engagement we run follows the same four phases. No shortcuts, no skipped steps, no surprises in production.
Assessment and Planning
- Evaluate current state: on-premise 1.x environment, legacy Java, and existing cluster configuration
- Plan the full roadmap for upgrading from NiFi 1.x to 2.x via the mandatory 1.28.1 bridge
- Define target architecture across Kubernetes (AKS, EKS, GKE) with Java 21
- Assess legacy security configuration and identify proprietary dependencies
- Inventory all flows, including undocumented ones
- Review existing operations and manual processes
Preparation and Analysis
- Flow analysis and XML to JSON template transformation
- Pre-migration scanning for incompatible components and deprecated processors
- Analyze custom NARs and processor dependencies
- Develop Ansible automation scripts for the upgrade
- Plan CLI orchestration strategy using Apache NiFi Toolkit
- Plan security migration to modern TLS/OIDC
Migration and Execution
- Multi-platform deployment to cloud-native Kubernetes environments
- Stepwise cluster upgrade from NiFi 1.x to 2.x
- Blue-Green zero-downtime deployment
- Component mapping and deprecated processor replacement
- Custom processor refactoring for Java 21 and Python
- Enterprise to open source migration with OIDC/SAML setup
Optimization and Modernization
- Java 21 JVM tuning and cloud-native architecture optimization
- NiFi Registry integration for version-controlled flow management
- CI/CD pipeline setup for a consistent environment promotion
- Automated disaster recovery and backup configuration
- Data parity, smoke testing, and validation
- Security hardening and license optimization
The Only Indian Open Source Apache NiFi Contributor
Our contributions to the Apache NiFi core codebase give us direct visibility into 2.x architecture,
breaking changes, and upgrade dependencies that no documentation covers.
Open Source DNA
We actively contribute to the Apache NiFi codebase, making each engineer a practiced NiFi upgrade expert with first-hand knowledge of 2.x internals, APIs, and breaking changes before they affect your production environment.
Automation-First Approach
Ansible scripts, NiFi Toolkit CLI orchestration, and CI/CD pipelines reduce manual effort and migration risk across every environment we touch.
Enterprise Security Expertise
From legacy SSL to hardened Keycloak with OIDC/SAML, we handle complex SSO migrations without disrupting existing user access or active sessions.
We Worked on 2.x Target NiFi Version
NiFi Migration Success Stories
A selection of NiFi upgrade and migration engagements delivered by Ksolves across industries and cluster sizes.
Zero Data Loss Migration for a Major European Airline
Challenge
Four live production clusters, 20,000 processors, and no validated upgrade path. Staying on NiFi 1.15.3 was no longer an option.
Solution
A seven-phase migration to NiFi 2.6.0 built around one rule: nothing touches production until pre-production signs off.
20,000
Processors Migrated With Zero Data Loss
NiFi 1.11 to 2.x Migration Roadmap for a Large Enterprise
Challenge
An undocumented NiFi 1.11.0 estate, no internal upgrade expertise, and active compliance pipelines that could not afford a single hour of downtime.
Solution
Full cluster audit, compatibility matrix, and phased migration roadmap delivered before a single pipeline was touched.
0
Unplanned Downtime Across All Active Pipelines
SSIS to Apache NiFi Migration for a Major Retail Enterprise
Challenge
Batch jobs running for hours, peak loads causing failures, and no path to real-time data on a system too fragile to change.
Solution
AI-assisted pipeline redesign and full migration to Apache NiFi with real-time and batch processing running in parallel from day one.
60%
Reduction in Data Processing Time
Informatica PowerCenter to Apache NiFi for a Global Retail Enterprise
Challenge
Batch windows of 4 to 8 hours, rising Informatica licensing costs, and no path to real-time data across 400 retail locations and 3.2 million daily transactions.
Solution
143 PowerCenter workflows re-engineered as NiFi flows on Kubernetes, with real-time Kafka streaming and phased cutover over 14 weeks without touching live operations.
65%
Faster Data Processing
Zero Data Loss Migration for a Major European Airline
Challenge
Four live production clusters, 20,000 processors, and no validated upgrade path. Staying on NiFi 1.15.3 was no longer an option.
Solution
A seven-phase migration to NiFi 2.6.0 built around one rule: nothing touches production until pre-production signs off.
20,000
Processors Migrated With Zero Data Loss
NiFi 1.11 to 2.x Migration Roadmap for a Large Enterprise
Challenge
An undocumented NiFi 1.11.0 estate, no internal upgrade expertise, and active compliance pipelines that could not afford a single hour of downtime.
Solution
Full cluster audit, compatibility matrix, and phased migration roadmap delivered before a single pipeline was touched.
0
Unplanned Downtime Across All Active Pipelines
SSIS to Apache NiFi Migration for a Major Retail Enterprise
Challenge
Batch jobs running for hours, peak loads causing failures, and no path to real-time data on a system too fragile to change.
Solution
AI-assisted pipeline redesign and full migration to Apache NiFi with real-time and batch processing running in parallel from day one.
60%
Reduction in Data Processing Time
Informatica PowerCenter to Apache NiFi for a Global Retail Enterprise
Challenge
Batch windows of 4 to 8 hours, rising Informatica licensing costs, and no path to real-time data across 400 retail locations and 3.2 million daily transactions.
Solution
143 PowerCenter workflows re-engineered as NiFi flows on Kubernetes, with real-time Kafka streaming and phased cutover over 14 weeks without touching live operations.
65%
Faster Data Processing
Why Work with Ksolves?
Apache NiFi specialists and active open-source contributors with 24/7 availability, built around the reality that production data pipelines do not follow business hours.
90%
Client Retention Rate
750+
Projects Successfully
Delivered
NSE & BSE
Publicly Listed
Company
600+
Workforce and still
growing
350+
Certifications
200+
Happy Clients
24x7
Support Across
All Time Zones
Our NiFi Upgrade Package
A fixed-scope engagement delivering a complete, production-ready NiFi 1.x to 2.x upgrade from assessment to go-live.
3
Environments Covered
Environments Covered
Dev, QA, and Production all migrated, tested, and validated before sign-off.
10+
Data Flows
Data Flows
Migration and optimization of 10+ NiFi data flows, including undocumented flows recovered and standardized via NiFi Registry.
6 to 8
Weeks
Weeks
Typical engagement duration with clear milestones, adjusted for environment complexity.
Zero
Downtime
Downtime
Parallel-run strategy with automated failover validation ensures your data keeps moving through every stage of cutover.
Frequently Asked Questions
Common questions about upgrading from NiFi 1.x to 2.x, what the process involves, and what to expect when you work with Ksolves.
No. Upgrading from NiFi 1.x to 2.x requires a mandatory intermediate stop at NiFi 1.28.1 before moving to 2.x. This applies regardless of your starting version, whether you are on 1.11, 1.15, 1.19, or 1.23. Skipping this bridge release causes compatibility failures that are difficult to diagnose in production. Our Apache NiFi upgrade service manages this stepwise path end-to-end.
The most significant changes are the removal of ZooKeeper dependency, deprecation of XML templates in favour of JSON-based flows, replacement of Variable Registry with Parameter Contexts, processor API changes, and a mandatory move to Java 21. Several Kafka, Hive, and Jolt processors were also relocated or removed entirely. The earlier your 1.x version, the more breaking changes you will encounter.
Yes. NiFi 2.x is a significant architectural leap with Python processor support, improved Kubernetes-native deployment, and a modern security model. The 1.x branch reached the end of support in December 2024, making the upgrade to 2.x the only supported path forward.
For most environments, our NiFi upgrade service delivers production-ready results in 6 to 8 weeks. Timelines vary based on the number of flows, custom processors, cluster size, and starting version. Environments on older releases like 1.11 or 1.15 typically require more remediation effort than those already on 1.19 or later.
. We use a Blue-Green deployment approach with parallel-run validation so your pipelines remain live throughout the entire upgrade process. Data ingestion is paused only briefly during the final node-level cutover, by agreement with your team.
Custom Java processors are refactored to the NiFi 2.x API with full Java 21 compatibility. Python-based processors are converted using the Native Python Processor API. All custom NARs are validated in pre-production before any production node is touched.
The most common issues are undocumented flows that surface only during auditing, deprecated processors with no direct replacement, Variable Registry configurations that break silently when not converted to Parameter Contexts, and OS-level differences between pre-production and production environments. Environments running older versions like 1.11 or 1.15 also carry a larger backlog of accumulated breaking changes compared to those on 1.23 or 1.26. Our NiFi upgrade experts run a full readiness assessment before migration begins to catch all of these early.
As of mid-2026, Apache NiFi 2.x is the active release line. NiFi 1.28.1 was the final 1.x release. All new features, security patches, and architectural improvements are delivered exclusively on the 2.x line.
