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fix:shutdown stuck when there is error on the flush path #831

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merged 2 commits into from Feb 16, 2021
Merged

fix:shutdown stuck when there is error on the flush path #831

merged 2 commits into from Feb 16, 2021

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yirutang
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…l to release the requests in the queue, causing shutdown to wait forever

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Fixes #<issue_number_goes_here> ☕️

…l to release the requests in the queue, causing shutdown to wait forever
@yirutang yirutang requested review from a team and tswast February 16, 2021 19:19
@product-auto-label product-auto-label bot added the api: bigquerystorage Issues related to the googleapis/java-bigquerystorage API. label Feb 16, 2021
@google-cla google-cla bot added the cla: yes This human has signed the Contributor License Agreement. label Feb 16, 2021
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codecov bot commented Feb 16, 2021

Codecov Report

Merging #831 (d1c2ecf) into master (94c7848) will increase coverage by 0.04%.
The diff coverage is 100.00%.

Impacted file tree graph

@@             Coverage Diff              @@
##             master     #831      +/-   ##
============================================
+ Coverage     81.10%   81.14%   +0.04%     
  Complexity      996      996              
============================================
  Files            74       74              
  Lines          5346     5347       +1     
  Branches        415      415              
============================================
+ Hits           4336     4339       +3     
+ Misses          839      838       -1     
+ Partials        171      170       -1     
Impacted Files Coverage Δ Complexity Δ
...e/cloud/bigquery/storage/v1beta2/StreamWriter.java 85.03% <100.00%> (+0.44%) 38.00 <0.00> (ø)

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@stephaniewang526 stephaniewang526 merged commit c2fd750 into googleapis:master Feb 16, 2021
@@ -932,6 +932,7 @@ public void onComplete() {
public void onError(Throwable t) {
LOG.fine("OnError called");
if (streamWriter.shutdown.get()) {
abortInflightRequests(t);
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There are two more issues:

  1. Even if you abort the inflight request here, the shutdown can still add more requests through writeAllOutstanding();
  2. Besides, it is also possible that another thread is calling append, and will contribute another stuck request at https://screenshot.googleplex.com/7pmsyb2zyKDEaGF


ApiFuture<AppendRowsResponse> appendFuture1 = sendTestMessage(writer, new String[] {"A"});
ApiFuture<AppendRowsResponse> appendFuture2 = sendTestMessage(writer, new String[] {"B"});
Thread.sleep(5000L);
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What is this for?

Thread.sleep(5000L);
fakeExecutor.advanceTime(Duration.ofSeconds(20));
// Shutdown writer immediately and there will be some error happened when flushing the queue.
writer.shutdown();
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I don't understand this. You advance the time before shutdown. So even in the old code path before your fix, you can reduce the only inflight requests in the queue and unblock. Will this unit test block before your fix?

Please think carefully how to write a unit test.

@yirutang yirutang deleted the fix1 branch February 18, 2021 00:10
shubhwip pushed a commit to shubhwip/java-bigquerystorage that referenced this pull request Oct 7, 2023
🤖 I have created a release *beep* *boop*
---


### Updating meta-information for bleeding-edge SNAPSHOT release.

---
This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
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3 participants