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https://issues.apache.org/jira/browse/FLINK-5122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15882858#comment-15882858
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ASF GitHub Bot commented on FLINK-5122:
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Github user tzulitai commented on the issue:
https://github.com/apache/flink/pull/2861
Hi @static-max!
Your contribution has been merged with aaac7c2 and 3743e89.
Thanks a lot for your work! Could you please manually close this PR?
> Elasticsearch Sink loses documents when cluster has high load
> -------------------------------------------------------------
>
> Key: FLINK-5122
> URL: https://issues.apache.org/jira/browse/FLINK-5122
> Project: Flink
> Issue Type: Bug
> Components: Streaming Connectors
> Affects Versions: 1.2.0
> Reporter: static-max
> Assignee: static-max
>
> My cluster had high load and documents got not indexed. This violates the "at
> least once" semantics in the ES connector.
> I gave pressure on my cluster to test Flink, causing new indices to be
> created and balanced. On those errors the bulk should be tried again instead
> of being discarded.
> Primary shard not active because ES decided to rebalance the index:
> 2016-11-15 15:35:16,123 ERROR
> org.apache.flink.streaming.connectors.elasticsearch2.ElasticsearchSink -
> Failed to index document in Elasticsearch:
> UnavailableShardsException[[index-name][3] primary shard is not active
> Timeout: [1m], request: [BulkShardRequest to [index-name] containing [20]
> requests]]
> Bulk queue on node full (I set queue to a low value to reproduce error):
> 22:37:57,702 ERROR
> org.apache.flink.streaming.connectors.elasticsearch2.ElasticsearchSink -
> Failed to index document in Elasticsearch:
> RemoteTransportException[[node1][192.168.1.240:9300][indices:data/write/bulk[s][p]]];
> nested: EsRejectedExecutionException[rejected execution of
> org.elasticsearch.transport.TransportService$4@727e677c on
> EsThreadPoolExecutor[bulk, queue capacity = 1,
> org.elasticsearch.common.util.concurrent.EsThreadPoolExecutor@51322d37[Running,
> pool size = 2, active threads = 2, queued tasks = 1, completed tasks =
> 2939]]];
> I can try to propose a PR for this.
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