Non-Reproducible Bug Checklist

What are non-reproducible defects?

Non-reproducible defects, also known as non-reproducible bugs or intermittent bugs, are software issues that occur inconsistently and cannot be reliably reproduced under the same conditions. These defects may be challenging to identify and fix.

Below are the checklist that can help you go to the causes of the non-reproducible defects. Keep these ideas and techniques handy to reproduce such non-reproducible defects:

Environmental Issues

Devices
Browser
- Different Browsers
- Different Versions
- Pop Up Blockers
- Ad Blockers
- Extensions
function toggleChildCheckboxes(source) { var childCheckboxes = document.getElementsByClassName('childCheckbox'); for (var i = 0; i < childCheckboxes.length; i++) { childCheckboxes[i].checked = source.checked; } }
Operation Systems
- Different OS
- Updates
- Security Patches
function toggleChildCheckboxes(source) { var childCheckboxes = source.parentNode.querySelectorAll('.childCheckbox'); for (var i = 0; i < childCheckboxes.length; i++) { childCheckboxes[i].checked = source.checked; } }
label { display: block; } Network Service Provider Geo-location Configuration Settings Memory RAM CPU Allocation CPU Utilization
Kube
- Misconfiguration
- Namespaces
- Secrets referenced in deployment pods
Version incompatibility of library files function toggleChildCheckboxes(source) { var childCheckboxes = source.parentNode.querySelectorAll('.childCheckbox'); for (var i = 0; i < childCheckboxes.length; i++) { childCheckboxes[i].checked = source.checked; } }

Random Events

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Timing Issues
- Server-DB time
Race Condition
- DB deadlocks
- Cyclic error
Hardware Errors
- Malfunctions
- Disk Full
Scheduled Jobs
Un-Scheduled Events
- Browser upgrades
- Antivirus Upgrades
- Antivirus Scans
Memory Leaks (Build over time when resources exhausted) Connection Leakages
Transient Condition
- Network Gliches
- System Load Fluctuations
function toggleChildCheckboxes(source) { var childCheckboxes = source.parentNode.querySelectorAll('.childCheckbox'); for (var i = 0; i < childCheckboxes.length; i++) { childCheckboxes[i].checked = source.checked; } }

Heisenbugs

Elusive bugs that vanish or change behavior during debugging attempts.

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Heisenbugs
- Alteration of Program during debug
- Thread Interaction
- Parallelism
- Concurrency of resources
function toggleChildCheckboxes(source) { var childCheckboxes = source.parentNode.querySelectorAll('.childCheckbox'); for (var i = 0; i < childCheckboxes.length; i++) { childCheckboxes[i].checked = source.checked; } }

Timing Issues

label { display: block; }
Timing
- Time Zone Issues
- Day Light Saving Time
- Leap Year
- System Clock Accuracy
function toggleChildCheckboxes(source) { var childCheckboxes = source.parentNode.querySelectorAll('.childCheckbox'); for (var i = 0; i < childCheckboxes.length; i++) { childCheckboxes[i].checked = source.checked; } }

Data Related Issues

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Data Related
- Data Distribution
- Load balancing
- Consistency Issues
- Compress/Decompress large data
  
  Algorithms
  
  Buffer sizes
  
  Memory Limitations
- Pagenation
- Disk Size
- Read Write Access
function toggleChildCheckboxes(source) { var childCheckboxes = source.parentNode.querySelectorAll('.childCheckbox'); for (var i = 0; i < childCheckboxes.length; i++) { childCheckboxes[i].checked = source.checked; } } function toggleNestedChildCheckboxes(source) { var nestedChildCheckboxes = source.parentNode.querySelectorAll('.nestedChildCheckbox'); for (var i = 0; i < nestedChildCheckboxes.length; i++) { nestedChildCheckboxes[i].checked = source.checked; } }

Let me know if more items can be added to the checklist.

Thanks.