apache-kafka - Mesos DCOS 未安装 Kafka

Question

我正在尝试在 Mesos 上安装 Kafka。看来安装已经成功了。

vagrant@DevNode:/dcos$ dcos package install kafka
This will install Apache Kafka DCOS Service.
Continue installing? [yes/no] yes
Installing Marathon app for package [kafka] version [0.9.4.0]
Installing CLI subcommand for package [kafka] version [0.9.4.0]
New command available: dcos kafka
The Apache Kafka DCOS Service is installed:
  docs   - https://github.com/mesos/kafka
  issues - https://github.com/mesos/kafka/issues

vagrant@DevNode:/dcos$ dcos package list
NAME   VERSION  APP     COMMAND  DESCRIPTION
kafka  0.9.4.0  /kafka  kafka    Apache Kafka running on top of Apache Mesos

但是kafka任务没有启动。

vagrant@DevNode:/dcos$ dcos kafka
Error: Kafka is not running
vagrant@DevNode:/dcos$

Marathon UI 表示服务是 waiting 。看起来它不接受分配给它的资源。更多日志here .

Mar 23 03:52:59 ip-10-0-4-194.ec2.internal java[1425]: [2016-03-23 03:52:59,335] INFO Offer ID: [54f71504-b37a-4954-b082-e1f2a04b7fa4-O77]. Considered resources with roles: [*]. Not all basic resources satisfied: cpu not in offer, disk SATISFIED (0.0 <= 0.0), mem not in offer (mesosphere.mesos.ResourceMatcher$:marathon-akka.actor.default-dispatcher-11)
Mar 23 03:52:59 ip-10-0-4-194.ec2.internal java[1425]: [2016-03-23 03:52:59,370] INFO Offer [54f71504-b37a-4954-b082-e1f2a04b7fa4-O77]. Insufficient resources for [/kafka] (need cpus=0.5, mem=307.0, disk=0.0, ports=(1 dynamic), available in offer: [id { value: "54f71504-b37a-4954-b082-e1f2a04b7fa4-O77" } framework_id { value: "54f71504-b37a-4954-b082-e1f2a04b7fa4-0000" } slave_id { value: "54f71504-b37a-4954-b082-e1f2a04b7fa4-S1" } hostname: "10.0.4.190" resources { name: "ports" type: RANGES ranges { range { begin: 1 end: 21 } range { begin: 23 end: 5050 } range { begin: 5052 end: 32000 } } role: "slave_public" } resources { name: "cpus" type: SCALAR scalar { value: 4.0 } role: "slave_public" } resources { name: "mem" type: SCALAR scalar { value: 14019.0 } role: "slave_public" } resources { name: "disk" type: SCALAR scalar { value: 32541.0 } role: "slave_public" } attributes { name: "public_ip" type: TEXT text { value: "true" } } url { scheme: "http" address { hostname: "10.0.4.190" ip: "10.0.4.190" port: 5051 } path: "/slave(1)" }] (mesosphere.mesos.TaskBuilder:marathon-akka.actor.default-dispatcher-11)

Mesos 主日志..

Mar 23 15:38:22 ip-10-0-4-194.ec2.internal mesos-master[1371]: I0323 15:38:22.339759  1376 master.cpp:5350] Sending 2 offers to framework 54f71504-b37a-4954-b082-e1f2a04b7fa4-0000 (marathon) at scheduler-f86b567c-de59-4891-916b-fb00c7959a09@10.0.4.194:60450
Mar 23 15:38:22 ip-10-0-4-194.ec2.internal mesos-master[1371]: I0323 15:38:22.341790  1381 master.cpp:3673] Processing DECLINE call for offers: [ 54f71504-b37a-4954-b082-e1f2a04b7fa4-O373 ] for framework 54f71504-b37a-4954-b082-e1f2a04b7fa4-0000 (marathon) at scheduler-f86b567c-de59-4891-916b-fb00c7959a09@10.0.4.194:60450
Mar 23 15:38:22 ip-10-0-4-194.ec2.internal mesos-master[1371]: I0323 15:38:22.342041  1381 master.cpp:3673] Processing DECLINE call for offers: [ 54f71504-b37a-4954-b082-e1f2a04b7fa4-O374 ] for framework 54f71504-b37a-4954-b082-e1f2a04b7fa4-0000 (marathon) at scheduler-f86b567c-de59-4891-916b-fb00c7959a09@10.0.4.194:60450

不知道为什么马拉松不喜欢这个提议。我相当确定有足够的资源。

Answer 1

Marathon 正在等待为 Kafka 调度程序提供足够资源的 Offer。它拒绝的报价似乎没有任何 CPU 或内存。您看到的具有足够资源的 Offer 已静态保留给角色“slave_public”。

Kafka 调度程序将使用角色 * 运行。您的集群在默认角色 * 中缺乏足够的资源。这是与私有(private)代理相关的角色

您应该查看 mesos/state 并查看具有“*”角色的代理的可用资源。