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https://issues.apache.org/jira/browse/BEAM-3026?focusedWorklogId=135889&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-135889
]
ASF GitHub Bot logged work on BEAM-3026:
----------------------------------------
Author: ASF GitHub Bot
Created on: 17/Aug/18 22:28
Start Date: 17/Aug/18 22:28
Worklog Time Spent: 10m
Work Description: aalbatross commented on a change in pull request #6146:
[BEAM-3026] Adding retrying behavior on ElasticSearchIO
URL: https://github.com/apache/beam/pull/6146#discussion_r211046256
##########
File path:
sdks/java/io/elasticsearch-tests/elasticsearch-tests-common/src/test/java/org/apache/beam/sdk/io/elasticsearch/ElasticsearchIOTestCommon.java
##########
@@ -512,4 +527,44 @@ public Void apply(Iterable<String> input) {
return null;
}
}
+
+ /** Test that the default predicate correctly parses chosen error code. */
+ public void testDefaultRetryPredicate(RestClient restClient) throws
IOException {
+ assertFalse(DEFAULT_RETRY_PREDICATE.test(new IOException("test")));
+ String x =
+ "{ \"index\" : { \"_index\" : \"test\", \"_type\" : \"doc\", \"_id\" :
\"1\" } }\n"
+ + "{ \"field1\" : @ }\n";
+ HttpEntity entity = new NStringEntity(x, ContentType.APPLICATION_JSON);
+
+ Response response = restClient.performRequest("POST", "/_bulk",
Collections.emptyMap(), entity);
+ assertTrue(CUSTOM_RETRY_PREDICATE.test(new ResponseException(response)));
+ }
+
+ /**
+ * Test that retries are invoked when Elasticsearch returns a specific error
code. We invoke this
+ * by issuing corrupt data and retrying on the `400` error code. Normal
behaviour is to retry on
+ * `429` only but that is difficult to simulate reliably. The logger is used
to verify expected
Review comment:
@echauchot the test is interesting, but i am afraid i can't think of a way
to simulate that condition(since the retry code is internal and i cant change
the request when the pipeline is executing). Please suggest !
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Issue Time Tracking
-------------------
Worklog Id: (was: 135889)
Time Spent: 10h (was: 9h 50m)
> Improve retrying in ElasticSearch client
> ----------------------------------------
>
> Key: BEAM-3026
> URL: https://issues.apache.org/jira/browse/BEAM-3026
> Project: Beam
> Issue Type: Improvement
> Components: io-java-elasticsearch
> Reporter: Tim Robertson
> Assignee: Ravi Pathak
> Priority: Major
> Fix For: 2.7.0
>
> Time Spent: 10h
> Remaining Estimate: 0h
>
> Currently an overloaded ES server will result in clients failing fast.
> I suggest implementing backoff pauses. Perhaps something like this:
> {code}
> ElasticsearchIO.ConnectionConfiguration conn =
> ElasticsearchIO.ConnectionConfiguration
> .create(new String[]{"http://...:9200"}, "test", "test")
> .retryWithWaitStrategy(WaitStrategies.exponentialBackoff(1000,
> TimeUnit.MILLISECONDS)
> .retryWithStopStrategy(StopStrategies.stopAfterAttempt(10)
> );
> {code}
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