我有一个4节点风暴集群。 工人JVM参数如下:阿帕奇风暴工人内存泄漏 - 外堆
-Xms5g -Xmx15g -XX:+UseG1GC -XX:MaxDirectMemorySize=1024m
风暴版本:0.9.3
问题是:工作者趋于显著当处理存储器达到14 + GB减速。
在贴紧时我的顶部输出如下。
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2075 root 20 0 18.132g 8.372g 12368 S 57.2 28.3 18:27.44 java
GC日志:
3317.095: [GC pause (young), 0.1861930 secs]
[Parallel Time: 180.9 ms, GC Workers: 4]
[GC Worker Start (ms): Min: 3317095.5, Avg: 3317095.5, Max: 3317095.5, Diff: 0.0]
[Ext Root Scanning (ms): Min: 29.0, Avg: 29.4, Max: 29.7, Diff: 0.7, Sum: 117.4]
[Update RS (ms): Min: 18.0, Avg: 18.1, Max: 18.3, Diff: 0.3, Sum: 72.5]
[Processed Buffers: Min: 31, Avg: 41.2, Max: 53, Diff: 22, Sum: 165]
[Scan RS (ms): Min: 0.6, Avg: 0.7, Max: 0.8, Diff: 0.2, Sum: 2.8]
[Code Root Scanning (ms): Min: 0.1, Avg: 0.1, Max: 0.1, Diff: 0.1, Sum: 0.4]
[Object Copy (ms): Min: 132.1, Avg: 132.5, Max: 132.7, Diff: 0.6, Sum: 529.8]
[Termination (ms): Min: 0.0, Avg: 0.0, Max: 0.0, Diff: 0.0, Sum: 0.0]
[GC Worker Other (ms): Min: 0.0, Avg: 0.0, Max: 0.1, Diff: 0.0, Sum: 0.2]
[GC Worker Total (ms): Min: 180.7, Avg: 180.8, Max: 180.8, Diff: 0.1, Sum: 723.1]
[GC Worker End (ms): Min: 3317276.3, Avg: 3317276.3, Max: 3317276.3, Diff: 0.0]
[Code Root Fixup: 0.1 ms]
[Code Root Migration: 0.2 ms]
[Clear CT: 0.4 ms]
[Other: 4.6 ms]
[Choose CSet: 0.0 ms]
[Ref Proc: 1.4 ms]
[Ref Enq: 0.1 ms]
[Free CSet: 1.5 ms]
[Eden: 2366.0M(2366.0M)->0.0B(1808.0M) Survivors: 94.0M->106.0M Heap: 5052.0M(15.0G)->2698.0M(15.0G)]
[Times: user=0.73 sys=0.00, real=0.19 secs]
我只能看到2698 MB的堆的使用。但Linux Top显示RES的内存为8.372g。当Top内存达到〜15GB时,进程将开始堵塞,我想避免。
此外,我已经缩小了使用XX:MaxDirectMemorySize由一些外部API堵塞直接内存的可能性。
由于堆大小很大 - 如果我尝试使用探查器(我的案例中的yourkit)拍摄内存快照,工作人员崩溃。
我需要找到内存堵塞的来源。
另外,为了避免多余的消息,我已节流使用TOPOLOGY_MAX_SPOUT_PENDING等于拓扑至5
我使用KafkaSpout - 从/net/wurstmeister/storm/storm-kafka-0.8-plus storm.kafka.KafkaSpout/
另外我提到了这个线程,它有一个类似的问题,但使用ZMQ而不是在新版本的Storm中使用Netty。
更新:当我删除我的所有螺栓,仅运行kafkaspout再有就是最小的延迟,也没有记忆的问题。所以,大概我们可以怀疑加工螺栓。
请在帖子中添加您的水口代码。你在使用acking吗? – 2015-03-25 15:57:16
是的,我的技术是可靠的,我使用4名Acker和4名工人。 @Gaurav:我使用wurstmeister的KafkaSpout。你想查看server.properties配置吗? – kaulmonish 2015-03-25 17:21:19
如果您分享喷口代码,它会更好。 – 2015-03-25 18:42:11