我将在apache mesos上设置一个kafka集群。 我遵循kafka-mesos on github的说明。我安装了一个mesos群集(使用Mesosphere,没有Marathon),每个群集有3个节点,每个节点有2个CPU和4GB内存。我用hello world示例成功测试了群集。Mesos Kafka任务失败的内存限制
我可以在其上运行kafka-mesos调度程序,并可以为其添加代理。 但是,当我想启动代理时,出现内存限制。
broker-191-.... TASK_FAILED slave:#c3-S1 reason:REASON_MEMORY_LIMIT
尽管集群有12GB内存,但代理只需要3GB内存和1GB堆。 (我用512M到3GB的各种配置进行测试,但没有工作)
问题是什么?什么是解决方案?
完整的故事就在这里:
2015-10-17 17:39:24,748 [Jetty-17] INFO ly.stealth.mesos.kafka.HttpServer$ - handling - http://192.168.11.191:7000/api/broker/start
2015-10-17 17:39:28,202 [Thread-605] INFO ly.stealth.mesos.kafka.Scheduler$ - [resourceOffers]
mesos-2#O1160 cpus:2.00 mem:4098.00 disk:9869.00 ports:[31000..32000]
mesos-3#O1161 cpus:2.00 mem:4098.00 disk:9869.00 ports:[31000..32000]
mesos-1#O1162 cpus:2.00 mem:4098.00 disk:9869.00 ports:[31000..32000]
2015-10-17 17:39:28,204 [Thread-605] INFO ly.stealth.mesos.kafka.Scheduler$ - Starting broker 191: launching task broker-191-0abe9e57-b0fb-4d87-a1b4-529acb111940 by offer mesos-2#O1160
broker-191-0abe9e57-b0fb-4d87-a1b4-529acb111940 slave:#c6-S3 cpus:1.00 mem:3096.00 ports:[31000..31000] data:defaults=broker.id\=191\,log.dirs\=kafka-logs\,port\=31000\,zookeeper.connect\=192.168.11.191:2181\\\,192.168.11.192:2181\\\,192.168.11.193:2181\,host.name\=mesos-2\,log.retention.bytes\=10737418240,broker={"stickiness" : {"period" : "10m"\, "stopTime" : "2015-10-17 13:43:29.278"}\, "id" : "191"\, "mem" : 3096\, "cpus" : 1.0\, "heap" : 1024\, "failover" : {"delay" : "1m"\, "maxDelay" : "10m"}\, "active" : true}
2015-10-17 17:39:28,417 [Thread-606] INFO ly.stealth.mesos.kafka.Scheduler$ - [statusUpdate] broker-191-0abe9e57-b0fb-4d87-a1b4-529acb111940 TASK_FAILED slave:#c6-S3 reason:REASON_MEMORY_LIMIT
2015-10-17 17:39:28,418 [Thread-606] INFO ly.stealth.mesos.kafka.Scheduler$ - Broker 191 failed 1, waiting 1m, next start ~ 2015-10-17 17:40:28+03
2015-10-17 17:39:29,202 [Thread-607] INFO ly.stealth.mesos.kafka.Scheduler$ - [resourceOffers]
我发现Mesos主日志如下:
...validation.cpp:422] Executor broker-191-... for task broker-191-... uses less CPUs (None) than the minimum required (0.01). Please update your executor, as this will be mandatory in future releases.
...validation.cpp:434] Executor broker-191-... for task broker-191-... uses less memory (None) than the minimum required (32MB). Please update your executor, as this will be mandatory in future releases.
,但我通过代理添加(更新)设置经纪CPU和MEM:
broker updated:
id: 191
active: false
state: stopped
resources: cpus:1.00, mem:2048, heap:1024, port:auto
failover: delay:1m, max-delay:10m
stickiness: period:10m, expires:2015-10-19 11:15:53+03
REASON_MEMORY_LIMIT并不一定意味着任务因OOM而被杀害。你可以请附上执行者的stderr吗? – serejja
我将'kafka-mesos.properties'中的'user = vagrant'更改为'user = root',并重新启动引起问题解决的mesos。 –