Скачать или смотреть Instantly See Why Code Is Breaking - Automated Root Cause Analysis in Java

Event Snapshot is an automated root cause analysis tool available in FusionReactor ultimate and developer editions.

0m 14s
A snapshot is generated if the same error occurs twice and is instantly available in the cloud to debug issues.

0m 20s
For an instance in the cloud I have a recurring error, when viewing the details of the error I can see a snapshot is available

0m 30s
In the error tab of the transaction, you see the error that occurred and the source file and line number for the error.
In our case this was an array index out of bounds exception, thrown on line 86 of the array index out of bounds JSP page.

0m 45s
Within the error, the snapshot tab is a snapshot of the erroring application code, along with the variables and stack frames at the point in time the error occurred.

0m 54s
In this case, the array out of bounds exception was caused by trying to retrieve the tenth element of an array.

1m 01s
We can confirm in the variables that our array only had 5 items which caused the error.

1m 08s
Using a try-catch or ensuring the correct array element was being retrieved would prevent this from occurring in the future.

1m 15s
Use snapshots to fix bugs fast without affecting customers