Retry streaming exceptions (this time for sure, Rocky!)#4016
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Tracks the 'resume_token', and issues restart after a 503.
Retry handling will be done behind the scenes.
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theacodes
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Sep 21, 2017
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After @vkedia says yes, I will start the process for a Spanner release. |
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Thanks @lukesneeringer, @tseaver, and @jonparrott! |
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Sep 21, 2017
spanner/tests/unit/test_snapshot.py
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| LAST = ( | ||
| self._make_item(3), | ||
| ) | ||
| ITEMS = FIRST + SECOND + LAST |
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| self.assertEqual(list(resumable), list(ITEMS)) | ||
| restart.assert_called_once_with() | ||
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| def test_iteration_w_raw_raising_unavailable(self): |
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Also, remove unused variable. Addresses: #4016 (comment) #4016 (comment)
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Is this approved, @vkedia? |
vkedia
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Sep 21, 2017
parthea
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* Add '_restart_on_unavailable' iterator wrapper.
Tracks the 'resume_token', and issues restart after a 503.
* Strip knowledge of 'resume_token' from 'StreamedResultSet'.
* Remove 'resume_token' args from 'Snapshot' and 'Session' API surface:
Retry handling will be done behind the scenes.
* Use '_restart_on_unavailable' wrapper in 'SRS.{read,execute_sql}.
Closes #3775.
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Supersedes #3930.
Closes #3775.
/cc vkedia