[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-03 Thread Impala Public Jenkins (Code Review)
Impala Public Jenkins has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..

IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

Disable the tests TestResultSpooling::test_full_queue(_large_fetch)
until we figure out why they are flaky.

Replace the sleep in TestAdmissionController::test_release_backend with
assert_eventually to reduce flakiness.

Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Reviewed-on: http://gerrit.cloudera.org:8080/14337
Reviewed-by: Impala Public Jenkins 
Tested-by: Impala Public Jenkins 
---
M tests/custom_cluster/test_admission_controller.py
M tests/query_test/test_result_spooling.py
2 files changed, 6 insertions(+), 2 deletions(-)

Approvals:
  Impala Public Jenkins: Looks good to me, approved; Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 6
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-03 Thread Impala Public Jenkins (Code Review)
Impala Public Jenkins has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 5: Verified+1


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Gerrit-MessageType: comment
Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 5
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Fri, 04 Oct 2019 01:10:24 +
Gerrit-HasComments: No


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-03 Thread Impala Public Jenkins (Code Review)
Impala Public Jenkins has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 4:

Build Successful

https://jenkins.impala.io/job/gerrit-code-review-checks/4721/ : Initial code 
review checks passed. Use gerrit-verify-dryrun-external or gerrit-verify-dryrun 
to run full precommit tests.


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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 4
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Thu, 03 Oct 2019 21:58:19 +
Gerrit-HasComments: No


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-03 Thread Impala Public Jenkins (Code Review)
Impala Public Jenkins has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 5: Code-Review+2


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Gerrit-MessageType: comment
Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 5
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Thu, 03 Oct 2019 21:19:16 +
Gerrit-HasComments: No


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-03 Thread Impala Public Jenkins (Code Review)
Impala Public Jenkins has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 5:

Build started: https://jenkins.impala.io/job/gerrit-verify-dryrun/5050/ 
DRY_RUN=false


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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 5
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Thu, 03 Oct 2019 21:19:17 +
Gerrit-HasComments: No


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-03 Thread Sahil Takiar (Code Review)
Sahil Takiar has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 4: Code-Review+2

Bumped timeout to 60s. Carrying +2.


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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 4
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Thu, 03 Oct 2019 21:18:19 +
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[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-03 Thread Sahil Takiar (Code Review)
Hello Michael Ho, Impala Public Jenkins,

I'd like you to reexamine a change. Please visit

http://gerrit.cloudera.org:8080/14337

to look at the new patch set (#4).

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..

IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

Disable the tests TestResultSpooling::test_full_queue(_large_fetch)
until we figure out why they are flaky.

Replace the sleep in TestAdmissionController::test_release_backend with
assert_eventually to reduce flakiness.

Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
---
M tests/custom_cluster/test_admission_controller.py
M tests/query_test/test_result_spooling.py
2 files changed, 6 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/37/14337/4
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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 4
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-03 Thread Michael Ho (Code Review)
Michael Ho has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 3: Code-Review+2

(1 comment)

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py
File tests/custom_cluster/test_admission_controller.py:

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py@1337
PS1, Line 1337: # Once the 'lineitem' scan completes, NumCompletedBac
> Yeah, maybe discussing in person is best, will find you tomorrow.
Fair enough. I suppose all functions waiting for certain condition to become 
true has a timeout by default so there is no getting away from using some sort 
of timeout to avoid the test from hanging forever.

May be safer to bump the timeout to a higher value such as 60s.



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Gerrit-MessageType: comment
Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 3
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Thu, 03 Oct 2019 18:14:32 +
Gerrit-HasComments: Yes


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-02 Thread Sahil Takiar (Code Review)
Sahil Takiar has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py
File tests/custom_cluster/test_admission_controller.py:

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py@1337
PS1, Line 1337: sleep(30)  # Wait for the 'lineitem' scan to complete
> Not sure if there is any misunderstanding here. I understand the purpose of
Yeah, maybe discussing in person is best, will find you tomorrow.

I get that waiting for for all F01 instances to transition to "FINISHED" is a 
prerequisite for NumCompletedBackends == 1, I guess my question is what is the 
benefit of doing that check? How would it reduce flakiness? You would end up 
with code like:

 assert_eventually(1, 30, lambda: [method-to-check-F01-fragments-finished])
 assert_eventually(1, 30, lamdba: "NumCompletedBackends: 1 (1)"
  in self.client.get_runtime_profile(handle)))

I don't see how that is better than just doing:

 assert_eventually(1, 30, lamdba: "NumCompletedBackends: 1 (1)"
  in self.client.get_runtime_profile(handle)))

Given that NumCompletedBackends should be set to 1 at roughly the same time all 
F01 fragments finish.



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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
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Gerrit-PatchSet: 1
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Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Wed, 02 Oct 2019 23:53:58 +
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[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-02 Thread Michael Ho (Code Review)
Michael Ho has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py
File tests/custom_cluster/test_admission_controller.py:

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py@1337
PS1, Line 1337: sleep(30)  # Wait for the 'lineitem' scan to complete
> The test itself is timing dependent, so I don't think we can get out of usi
Not sure if there is any misunderstanding here. I understand the purpose of the 
test is to validate that NumCompletedBackends == 1 and I am not suggesting you 
to remove that check.

Instead, my suggestion is that the test should wait on a logical condition in 
which NumCompletedBackends is expected to be 1 before checking 
NumCompletedBackends == 1 in the query profile. My understanding is that this 
condition should happen once all instances of F01 reach the "FINISHED" state.

Anyhow, this is just a minor point but I think timing dependent tests are 
usually prone to flakiness so avoiding that if possible would be great. Please 
feel free to grab me and discuss this offline if it's still not clear.



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Gerrit-PatchSet: 1
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Gerrit-Comment-Date: Wed, 02 Oct 2019 23:38:25 +
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[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-02 Thread Sahil Takiar (Code Review)
Sahil Takiar has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py
File tests/custom_cluster/test_admission_controller.py:

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py@1337
PS1, Line 1337: sleep(30)  # Wait for the 'lineitem' scan to complete
> assert_eventually still has a timeout itself so it will suffer the same tim
The test itself is timing dependent, so I don't think we can get out of using 
timeouts. The test runs a query where some fragments block indefinitely, and 
others Even checking the status of the in-flight fragments will have to be done 
with a timeout.

The reason I want to use NumCompletedBackends, is that this feature should 
increment NumCompletedBackends whenever a backend completes. If it doesn't, 
then that is a bug. NumCompletedBackends was added as part of this feature.

Using assert_eventually should be more robust than the previous approach of 
just sleeping for a fixed amount of time and then asserting that 
NumCompletedBackends == 1. assert_eventually polls the runtime profile at a 
fixed interval and validates that the value of NumCompletedBackends eventually 
reaches 1, within a timeout of 30 seconds. The previous approach just wanted 
for 10 seconds, and then asserted that NumCompletedBackends == 1. We could even 
increase the timeout to a higher value, like 60 if necessary.



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Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Wed, 02 Oct 2019 21:07:04 +
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[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-02 Thread Michael Ho (Code Review)
Michael Ho has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py
File tests/custom_cluster/test_admission_controller.py:

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py@1337
PS1, Line 1337: sleep(30)  # Wait for the 'lineitem' scan to complete
> The goal of the test is to actually validate that NumCompletedBackends is i
assert_eventually still has a timeout itself so it will suffer the same timing 
issue in the worst case.

Given that this test checks that NumCompletedBackends is incremented by one, 
isn't it more precise to check that all F01 reached "FINISHED" states by 
parsing the json output from the debug webpage ?

http://:25000/query_finstances?query_id=

A proxy for the above is to check the number of in-flight fragments on all 
nodes. This of course bakes a lot of assumption into the test about the 
generated plan for the given query.



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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
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Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Wed, 02 Oct 2019 17:45:26 +
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[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-01 Thread Impala Public Jenkins (Code Review)
Impala Public Jenkins has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 2:

Build Successful

https://jenkins.impala.io/job/gerrit-code-review-checks/4697/ : Initial code 
review checks passed. Use gerrit-verify-dryrun-external or gerrit-verify-dryrun 
to run full precommit tests.


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Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Wed, 02 Oct 2019 00:24:52 +
Gerrit-HasComments: No


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-01 Thread Sahil Takiar (Code Review)
Sahil Takiar has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py
File tests/custom_cluster/test_admission_controller.py:

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py@1337
PS1, Line 1337: sleep(30)  # Wait for the 'lineitem' scan to complete
> Will number of a in-flight fragments a more reliable metric to wait on ?
The goal of the test is to actually validate that NumCompletedBackends is 
incremented. However, I removed the sleep and replaced it with an 
assert_eventually which I think is more reliable.



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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
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Gerrit-PatchSet: 1
Gerrit-Owner: Sahil Takiar 
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Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sahil Takiar 
Gerrit-Comment-Date: Tue, 01 Oct 2019 23:44:16 +
Gerrit-HasComments: Yes


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-01 Thread Sahil Takiar (Code Review)
Hello Michael Ho, Impala Public Jenkins,

I'd like you to reexamine a change. Please visit

http://gerrit.cloudera.org:8080/14337

to look at the new patch set (#2).

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..

IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

Disable the tests TestResultSpooling::test_full_queue(_large_fetch)
until we figure out why they are flaky.

Replace the sleep in TestAdmissionController::test_release_backend with
assert_eventually to reduce flakiness.

Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
---
M tests/custom_cluster/test_admission_controller.py
M tests/query_test/test_result_spooling.py
2 files changed, 6 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/37/14337/2
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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 2
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-01 Thread Michael Ho (Code Review)
Michael Ho has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py
File tests/custom_cluster/test_admission_controller.py:

http://gerrit.cloudera.org:8080/#/c/14337/1/tests/custom_cluster/test_admission_controller.py@1337
PS1, Line 1337: sleep(30)  # Wait for the 'lineitem' scan to complete
Will number of a in-flight fragments a more reliable metric to wait on ?



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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 1
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Comment-Date: Tue, 01 Oct 2019 23:00:22 +
Gerrit-HasComments: Yes


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-01 Thread Impala Public Jenkins (Code Review)
Impala Public Jenkins has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14337 )

Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..


Patch Set 1:

Build Successful

https://jenkins.impala.io/job/gerrit-code-review-checks/4695/ : Initial code 
review checks passed. Use gerrit-verify-dryrun-external or gerrit-verify-dryrun 
to run full precommit tests.


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Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 1
Gerrit-Owner: Sahil Takiar 
Gerrit-Reviewer: Impala Public Jenkins 
Gerrit-Reviewer: Michael Ho 
Gerrit-Comment-Date: Tue, 01 Oct 2019 22:25:43 +
Gerrit-HasComments: No


[Impala-ASF-CR] IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

2019-10-01 Thread Sahil Takiar (Code Review)
Sahil Takiar has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/14337


Change subject: IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests
..

IMPALA-8926, IMPALA-8989: Fix flaky result spooling tests

Disable the tests TestResultSpooling::test_full_queue(_large_fetch)
until we figure out why they are flaky.

Bump the sleep in TestAdmissionController::test_release_backend to
reduce flakiness.

Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
---
M tests/custom_cluster/test_admission_controller.py
M tests/query_test/test_result_spooling.py
2 files changed, 4 insertions(+), 1 deletion(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/37/14337/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I7ea6bf3d84f174745c8a0b1e0f2b55ce05ee618b
Gerrit-Change-Number: 14337
Gerrit-PatchSet: 1
Gerrit-Owner: Sahil Takiar