Yingyi Bu has posted comments on this change.

Change subject: This change includes the following things: 1. Allow pregelix 
statement to cross two different dataverses. 2. Change TestsUtils to 
TestsExecutor which is not based on static methods so that Pregelix can reuse 
its functionalities. 3. Adds ioDeviceId into th
......................................................................


Patch Set 3:

(7 comments)

https://asterix-gerrit.ics.uci.edu/#/c/325/3/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
File 
asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java:

Line 63:         File dir = new File(System.getProperty("java.io.tmpdir") + 
File.separator + "nc1");
> This "java.io.tmpdir" is used multiple times, can we make is as a static fi
Done


Line 65:             FileUtils.forceDelete(dir);
> What kind of problem will appear if we didn't delete?
It is to delete test storage files (LSM etc.) in case there are aborted tests 
before.


https://asterix-gerrit.ics.uci.edu/#/c/325/3/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/ConnectorAPIServlet.java
File 
asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/ConnectorAPIServlet.java:

Line 111:             // Flush the cached contents of the dataset to file 
system.
> Why do we need to flush at this time? Especially in the "doGet" method, do 
External runtimes like Pregelix use this GET method to get the description of 
the dataset and read the dataset by themselves.

In case part of the requested dataset is not flushed, e.g., having in-memory 
LSM components,  we need to flush (not force) it to make sure the data goes to 
the OS file system so that other runtimes can see the data.

For read, we need this "flush" to get the up-to-date data.


https://asterix-gerrit.ics.uci.edu/#/c/325/3/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
File 
asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java:

Line 2829:             if (resultState != 1) {
> why do we take the 1 as the succeed? Should it be 0 by the bash convention?
Done


Line 2926:         pr.waitFor();
> Should we catch the `pr.exitValue()` as well? In case some other system err
Done


Line 2972:             if (s.equals("-cust-prop")) {
> just curiously, what's this "-cust-prop" meaning?
it is an option in Pregelix--customized properties.  
A user can put a sequence of comma-separated key=value pairs for that 
parameter.  Those properties will be written to the job's configuration XML 
files as key-value pairs.


https://asterix-gerrit.ics.uci.edu/#/c/325/3/asterix-app/src/test/java/edu/uci/ics/asterix/aql/translator/AqlTranslatorTest.java
File 
asterix-app/src/test/java/edu/uci/ics/asterix/aql/translator/AqlTranslatorTest.java:

Line 78:                 .asList(new String[] { "bin/pregelix 
examples/pregelix-example-0.2.13-jar-with-dependencies.jar "
> Should we make this 0.2.13 be pluggable in order to not break the test once
It could be any xyz.jar at line 68.  The expected result only depends on line 
68 but has nothing to do with the current Pregelix version.
I removed the version number anyway.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I7d167b64bf9ec754182b5b2fe44dfc7e5908c686
Gerrit-PatchSet: 3
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: Yingyi Bu <[email protected]>
Gerrit-Reviewer: Ian Maxon <[email protected]>
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-Reviewer: Jianfeng Jia <[email protected]>
Gerrit-Reviewer: Yingyi Bu <[email protected]>
Gerrit-HasComments: Yes

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