Post-migration validation of ETL jobs and exception management
Handling extract-transform-load (ETL) job mismatches as “exceptions.” Exception handling may include the following steps: (i) determining a mismatch while running an extract-transform-load job with the mismatch being a mismatch of at least one of the following types: design time information mismatch, and/or operational metadata mismatch; and (ii) responsive to determining the mismatch, handling the mismatch as an exception.
1. A method comprising:
running a first instance of a first extract-transform-load (ETL) job on a first system, with the running of the first instance including generation of first job runtime operational metadata;
running a second instance of the first ETL job on a second system, with the running of the second instance including generation of second job runtime operational metadata;
responsive to the running of the first and second instances of the first ETL job, determining existence of a job runtime issue with the running of the second instance on the second system;
responsive to the determination of existence of the job runtime issue of the second instance on the second system, creating an exception corresponding to the existence of the job runtime issue of the second instance on the second system; and
handling the exception by correcting the runtime issue with respect to the second system based on intelligent analysis of design and runtime operational metadata, including:
parsing a first runtime log generated by running the first instance and a second runtime log generated by running the second instance,
determining information about the runtime issue based on the parsing of the first and second runtime logs, and
finding out a root cause of the failure based upon the information determined about the runtime issue;
wherein the root cause is one of the following: an environment variable failure, or an output folder failure.
2. The method of claim 1 wherein the correction of the runtime issue with respect to the second system comprises:
finding a relevant fix is a fix repository; and
applying the relevant fix.
3. The method of claim 1 further comprising:
generating a new fix for correcting the runtime issue with respect to the second system based on the intelligent analysis of design and runtime operational metadata; and
adding the new fix to a fix repository along with information identifying the runtime issue with respect to the second system that lead to generation of the new fix.
4. A computer program product comprising:
a non-transitory computer-readable storage medium; and
computer readable program instructions stored on the computer-readable storage medium;
wherein the program instructions include:
first program instructions programmed to run a first instance of a first extract-transform-load (ETL) job on a first system, with the running of the first instance including generation of first job runtime operational metadata;
second program instructions programmed to run a second instance of the first ETL job on a second system, with the running of the second instance including generation of second job runtime operational metadata;
third program instructions programmed to, responsive to the running of the first and second instances of the first ETL job, determine existence of a job runtime issue with the running of the second instance on the second system;
fourth program instructions programmed to, responsive to the determination of existence of the job runtime issue of the second instance on the second system, creating an exception corresponding to the existence of the job runtime issue of the second instance on the second system; and
fifth program instructions programmed to handle the exception by correct the runtime issue with respect to the second system based on intelligent analysis of design and runtime operational metadata, including:
parsing a first runtime log generated by running the first instance and a second runtime log generated by running the second instance,
determining information about the runtime issue based on the parsing of the first and second runtime logs, and
finding out a root cause of the failure based upon the information determined about the runtime issue;
wherein the root cause is one of the following: an environment variable failure, or an output folder failure.
5. The computer program product of claim 4 wherein the correction of the runtime issue with respect to the second system comprises:
finding a relevant fix is a fix repository; and
applying the relevant fix.
6. The computer program product of claim 4 further comprising:
generating a new fix for correcting the runtime issue with respect to the second system based on the intelligent analysis of design and runtime operational metadata; and
adding the new fix to a fix repository along with information identifying the runtime issue with respect to the second system that lead to generation of the new fix.
7. A computer system comprising:
a set of processor(s);
a non-transitory computer-readable storage medium; and
computer readable program instructions executable on the set of processor(s) and stored on the computer-readable storage medium;
wherein the program instructions include:
first program instructions programmed to run a first instance of a first extract-transform-load (ETL) job on a first system, with the running of the first instance including generation of first job runtime operational metadata,
second program instructions programmed to run a second instance of the first ETL job on a second system, with the running of the second instance including generation of second job runtime operational metadata,
third program instructions programmed to, responsive to the running of the first and second instances of the first ETL job, determine existence of a job runtime issue with the running of the second instance on the second system,
fourth program instructions programmed to, responsive to the determination of existence of the job runtime issue of the second instance on the second system, creating an exception corresponding to the existence of the job runtime issue of the second instance on the second system; and
fifth program instructions programmed to handle the exception by correct the runtime issue with respect to the second system based on intelligent analysis of design and runtime operational metadata, including:
parsing a first runtime log generated by running the first instance and a second runtime log generated by running the second instance,
determining information about the runtime issue based on the parsing of the first and second runtime logs, and
finding out a root cause of the failure based upon the information determined about the runtime issue;
wherein the root cause is one of the following: an environment variable failure, or an output folder failure.
8. The computer system of claim 7 wherein the correction of the runtime issue with respect to the second system comprises:
finding a relevant fix is a fix repository; and
applying the relevant fix.
9. The computer system of claim 7 further comprising:
generating a new fix for correcting the runtime issue with respect to the second system based on the intelligent analysis of design and runtime operational metadata; and
adding the new fix to a fix repository along with information identifying the runtime issue with respect to the second system that lead to generation of the new fix.