{"action":"created","issue":{"url":"https://api.github.com/repos/edenhill/librdkafka/issues/807","repository_url":"https://api.github.com/repos/edenhill/librdkafka","labels_url":"https://api.github.com/repos/edenhill/librdkafka/issues/807/labels{/name}","comments_url":"https://api.github.com/repos/edenhill/librdkafka/issues/807/comments","events_url":"https://api.github.com/repos/edenhill/librdkafka/issues/807/events","html_url":"https://github.com/edenhill/librdkafka/issues/807","id":179690230,"number":807,"title":"Consumers indicate RD_KAFKA_RESP_ERR__PARTITION_EOF, meanwhile they suffer big lags and partitions are written continuously","user":{"login":"microwish","id":4253329,"avatar_url":"https://avatars.githubusercontent.com/u/4253329?v=3","gravatar_id":"","url":"https://api.github.com/users/microwish","html_url":"https://github.com/microwish","followers_url":"https://api.github.com/users/microwish/followers","following_url":"https://api.github.com/users/microwish/following{/other_user}","gists_url":"https://api.github.com/users/microwish/gists{/gist_id}","starred_url":"https://api.github.com/users/microwish/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/microwish/subscriptions","organizations_url":"https://api.github.com/users/microwish/orgs","repos_url":"https://api.github.com/users/microwish/repos","events_url":"https://api.github.com/users/microwish/events{/privacy}","received_events_url":"https://api.github.com/users/microwish/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/edenhill/librdkafka/labels/consumer","name":"consumer","color":"009800"}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":12,"created_at":"2016-09-28T06:27:58Z","updated_at":"2016-10-11T11:19:25Z","closed_at":null,"body":"Description\r\n===========\r\n\r\nI have more than ten topics in Kafka. \"topicA\" is one of the topics having fewest data and it has 11 partitions with replica factor 3.\r\nHowever, consumers of topicA always indicate RD_KAFKA_RESP_ERR__PARTITION_EOF and meanwhile those consumers suffer big lags.\r\nConsumers of all the other topics, including those of topics with much much more data, work quite well.\r\n\r\nDo you have any idea on why consumers of topicA work badly?\r\n\r\nHow to reproduce\r\n================\r\n\r\n\r\n\r\n\r\nChecklist\r\n=========\r\nPlease provide the following information:\r\n\r\n - [x] librdkafka version (release number or git tag): 0.9.1\r\n - [x] Apache Kafka version: kafka_2.10-0.8.2.2\r\n - [ ] librdkafka client configuration:\r\n - [x] Operating system: CentOS 6.4\r\n - [ ] Using the legacy Consumer\r\n - [ ] Using the high-level KafkaConsumer\r\n - [ ] Provide logs (with `debug=..` as necessary) from librdkafka\r\n - [ ] Provide broker log excerpts\r\n - [ ] Critical issue\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/edenhill/librdkafka/issues/comments/252888732","html_url":"https://github.com/edenhill/librdkafka/issues/807#issuecomment-252888732","issue_url":"https://api.github.com/repos/edenhill/librdkafka/issues/807","id":252888732,"user":{"login":"edenhill","id":524990,"avatar_url":"https://avatars.githubusercontent.com/u/524990?v=3","gravatar_id":"","url":"https://api.github.com/users/edenhill","html_url":"https://github.com/edenhill","followers_url":"https://api.github.com/users/edenhill/followers","following_url":"https://api.github.com/users/edenhill/following{/other_user}","gists_url":"https://api.github.com/users/edenhill/gists{/gist_id}","starred_url":"https://api.github.com/users/edenhill/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/edenhill/subscriptions","organizations_url":"https://api.github.com/users/edenhill/orgs","repos_url":"https://api.github.com/users/edenhill/repos","events_url":"https://api.github.com/users/edenhill/events{/privacy}","received_events_url":"https://api.github.com/users/edenhill/received_events","type":"User","site_admin":false},"created_at":"2016-10-11T11:19:25Z","updated_at":"2016-10-11T11:19:25Z","body":"To be able to correlate what the application is actually seeing to what the library does you need to modify your application to print the topic+partition+offset of messages it is handling every 1 second or so.\r\n\r\nAlso enable `debug=cgrp,topic,fetch`\r\n"}}
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