interesting on this case, please follow Shuai Lin's suggestion, provide
some logs to check

2016-02-02 23:05 GMT+08:00 Shuai Lin <[email protected]>:

> Is there any warning/error message in marathon logs when it takes a long
> time to deploy/redeploy your micro service? Also worth take a look of the
> mesos slave logs.
>
> On Tue, Feb 2, 2016 at 6:55 AM, Rodrick Brown <[email protected]>
> wrote:
>
>> My cluster consist of 9 slaves server split in 1/2 for two primary
>> applications (Spark | Scala Microservices)
>>
>>    - Spark - (server 1,2,3,4,8)  attributes: "rack:spark"
>>    - Long running Microservices (server 5,6,7,9) attributes "rack:ms"
>>
>>
>> The spark jobs run in coarse mode and the majority of them are short
>> lived they run for about  ~10-15 minutes via Chronos and shutdown. They
>> start every 15 minutes about ~45 jobs.
>>
>> We do lots of deploys daily mostly to the "rack:ms" nodes where these
>> jobs are started via Marathon and run until we need to deploy a new release
>> of code.
>>
>> Recently I started noticing jobs are taking forever to restart or startup
>> like they're not receiving valid offers.
>> The cluster resources consists of the following resources I always have
>> more than enough idle resources available to bring up/down new services yet
>> I've seen one scenario where a service took almost 10 minutes to restart.
>>
>>
>> CPUs Mem
>> Total 120 456.8 GB
>> Used 53.6 140.5 GB
>> Offered 0 0 B
>> Idle 66.4 316.3 GB
>> How can I combat this delay? I'm not using roles could this be the
>> problem?
>> Chronos jobs always seem to run fine but they require much less resource
>> than my long running Scala services.
>> Here is a sample job definition for in Marathon.
>>
>> {
>>    "id": "production/index-service",
>>    "cmd": "env && /opt/orchard/production/index-server/bin/run_jar.sh",
>>    "cpus": 1.0,
>>    "mem": 4096,
>>    "disk": 1000,
>>    "user": "orchard",
>>    "instances": 2,
>>    "constraints": [
>>      [
>>        "hostname","UNIQUE"
>>      ],
>>      [
>>        "rack", "LIKE", "ms"
>>      ]
>>    ],
>>    "requirePorts": true,
>>    "labels": {
>>      "ENV": "production",
>>      "HAPROXY_GROUP": "microservice"
>>    },
>>  "ports": [
>>      31703,
>>      31803,
>>      31903
>>    ],
>>    "maxLaunchDelaySeconds": 3,
>>    "backoffFactor": 1.20,
>>    "healthChecks": [
>>      {
>>        "gracePeriodSeconds": 3,
>>        "intervalSeconds": 5,
>>        "maxConsecutiveFailures": 3,
>>        "protocol": "TCP",
>>        "portIndex": 1,
>>        "timeoutSeconds": 5
>>      }
>>    ],
>> "upgradeStrategy": {
>>        "minimumHealthCapacity": 0.5,
>>        "maximumOverCapacity": 0.2
>>    }
>> }
>>
>> Any advice appreciated thanks.
>>
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>
>


-- 
Deshi Xiao
Twitter: xds2000
E-mail: xiaods(AT)gmail.com

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