卡夫卡+ Kafka 代理之间或代理与客户端之间可能打开的文件过多

Question

我们的 Apache Kafka 服务器面临着非常大的问题 我们的 Kafka 服务器之所以增加，是因为“打开文件太多”，

我们的生产 Kafka 集群有 7 台机器，而 Kafka 版本是0.1，

我们已经增加了将“kafka_user_nofile_limit”的两倍变为500000，而原始值为128000，

但我们再次达到了高值并且代理崩溃了

另外我们可以清楚地看到 Kafka 日志中有许多行“打开文件太多”

我们看到了以下Jira案例

https://issues.apache.org/jira/browse/KAFKA-3317

但我们看不到什么这个 jira 的解决方案是什么，或者这个主要问题的解决方法是什么？

来自 jira

 Bug
Status:OPEN
Priority: Major
Resolution:Unresolved
Affects Version/s:
0.9.0.0, 0.9.0.1
Fix Version/s:None
Component/s:None
Labels:None
Environment:CentOS release 6.5 (Final)
kafka_2.11-0.9.0.1
Flags:
Important
Description
there is much open files in my java app client which write msg to kafka broker, i used

<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>0.9.0.1</version>
</dependency>
new api to write msg. when i use

lsof -p 8780 | wc -l
19184
lsof -p 8780 | grep XmlIpcRegSvc | wc -l
4920
lsof -p 8780 | grep pipe | wc -l
9576
lsof -p 8780 | grep eventpoll | wc -l
4792
where 8780 is my java app pid.

java 37121 app *796u IPv6 960673997 0t0 TCP mad183:50213->mad180:XmlIpcRegSvc (ESTABLISHED)
there are many ESTABLISHED XmlIpcRegSvc , and seems not closed.
and It likes use ipv6 .


 

来自我的 kafka 机器的示例

 more /etc/security/limits.d/kafka.conf

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# distributed under the License is distributed on an "AS IS" BASIS,
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kafka   - nofile   500000
kafka   - nproc    65536