[
https://issues.apache.org/jira/browse/GOBBLIN-713?focusedWorklogId=218953&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-218953
]
ASF GitHub Bot logged work on GOBBLIN-713:
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Author: ASF GitHub Bot
Created on: 26/Mar/19 21:53
Start Date: 26/Mar/19 21:53
Worklog Time Spent: 10m
Work Description: yukuai518 commented on pull request #2581:
[GOBBLIN-713] Lazy load job specification from job catalog to avoid OOM issue.
URL: https://github.com/apache/incubator-gobblin/pull/2581
Lazy load job specification from job catalog to avoid OOM issue.
Dear Gobblin maintainers,
Please accept this PR. I understand that it will not be reviewed until I
have checked off all the steps below!
### JIRA
- [x] My PR addresses the following [Gobblin
JIRA](https://issues.apache.org/jira/browse/GOBBLIN/) issues and references
them in the PR title. For example, "[GOBBLIN-XXX] My Gobblin PR"
- https://issues.apache.org/jira/browse/GOBBLIN-713
### Description
- [x] Here are some details about my PR, including screenshots (if
applicable):
Use iterator instead of a collection to handle the lazy loading of job
specs. All the job spec's path is load first and then convert to the job spec
during the iteration.
### Tests
- [x] My PR adds the following unit tests __OR__ does not need testing for
this extremely good reason:
### Commits
- [x] My commits all reference JIRA issues in their subject lines, and I
have squashed multiple commits if they address the same issue. In addition, my
commits follow the guidelines from "[How to write a good git commit
message](http://chris.beams.io/posts/git-commit/)":
1. Subject is separated from body by a blank line
2. Subject is limited to 50 characters
3. Subject does not end with a period
4. Subject uses the imperative mood ("add", not "adding")
5. Body wraps at 72 characters
6. Body explains "what" and "why", not "how"
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Issue Time Tracking
-------------------
Worklog Id: (was: 218953)
Time Spent: 10m
Remaining Estimate: 0h
> Lazy load job specification from job catalog to avoid OOM issue when
> JobCatalog is bootup.
> ------------------------------------------------------------------------------------------
>
> Key: GOBBLIN-713
> URL: https://issues.apache.org/jira/browse/GOBBLIN-713
> Project: Apache Gobblin
> Issue Type: Improvement
> Reporter: Kuai Yu
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Today whenever the job catalog is restarted, all the job specs are load into
> memory. This can cause OOM issue in our production load. Ticket was created
> to provide an easy way to load job spec without materializing all the job
> specs into memory.
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