[GitHub] nifi pull request #2504: NIFI-4773: Fixed column type map initialization in ...

[asfgit]

Github user asfgit closed the pull request at:

https://github.com/apache/nifi/pull/2504


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[GitHub] nifi pull request #2504: NIFI-4773: Fixed column type map initialization in ...

[mgaido91]

Github user mgaido91 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2504#discussion_r171887381
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/QueryDatabaseTable.java
 ---
@@ -197,6 +198,12 @@ public void setup(final ProcessContext context) {
 maxValueProperties = 
getDefaultMaxValueProperties(context.getProperties());
 }
 
+@OnStopped
+public void stop() {
+// Reset the column type map in case properties change
+setupComplete.set(false);
--- End diff --

I see, thanks for your explaination


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[GitHub] nifi pull request #2504: NIFI-4773: Fixed column type map initialization in ...

[mattyb149]

Github user mattyb149 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2504#discussion_r171886997
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/QueryDatabaseTable.java
 ---
@@ -197,6 +198,12 @@ public void setup(final ProcessContext context) {
 maxValueProperties = 
getDefaultMaxValueProperties(context.getProperties());
 }
 
+@OnStopped
+public void stop() {
+// Reset the column type map in case properties change
+setupComplete.set(false);
--- End diff --

That's what it used to do, NIFI-4773 was to do the opposite. It's not 
recommended to try to connect to external systems in `@OnScheduled` due to 
timeouts and other possible errors. Instead we moved it into onTrigger but only 
to be done once.


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[GitHub] nifi pull request #2504: NIFI-4773: Fixed column type map initialization in ...

[mgaido91]

Github user mgaido91 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2504#discussion_r171882320
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/QueryDatabaseTable.java
 ---
@@ -197,6 +198,12 @@ public void setup(final ProcessContext context) {
 maxValueProperties = 
getDefaultMaxValueProperties(context.getProperties());
 }
 
+@OnStopped
+public void stop() {
+// Reset the column type map in case properties change
+setupComplete.set(false);
--- End diff --

can't we just do the setup in `@OnScheduled` and move the setupComplete 
flag only to `GenerateTableFetch` or remove it? I think the code would be more 
straightforward like this. What do you think?


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[GitHub] nifi pull request #2504: NIFI-4773: Fixed column type map initialization in ...

[mattyb149]

GitHub user mattyb149 opened a pull request:

https://github.com/apache/nifi/pull/2504

NIFI-4773: Fixed column type map initialization in QueryDatabaseTable

I added unit tests to both QDT and GTF, the former to show the issue is 
fixed (the test fails without the fix), and the latter to show that the fix 
does not introduce a regresstion to GTF (since there was a change to the shared 
base class).

Thank you for submitting a contribution to Apache NiFi.

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to ensure the following steps have been taken:

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You can merge this pull request into a Git repository by running:

$ git pull https://github.com/mattyb149/nifi NIFI-4773

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/nifi/pull/2504.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #2504


commit e11e2f841b005836a16b54bfff9d2f112d978efe
Author: Matthew Burgess 
Date:   2018-03-02T14:49:25Z

NIFI-4773: Fixed column type map initialization in QueryDatabaseTable




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