我启动了wso2 elb服务器，它没有自动缩放并显示以下错误，
[2015-07-01 18:55:35,653] INFO - CarbonUIServiceComponent Mgt Console URL : ht
tps://10.167.46.154:9443/carbon/
[2015-07-01 18:57:35,259] DEBUG - ServiceRequestsInFlightAutoscaler This is the
primary load balancer, starting to perform sanity checks.
[2015-07-01 18:57:35,260] DEBUG - ServiceRequestsInFlightAutoscaler Values in Ap
p domain context: 0 - 0 - Ctxt: 996465500
[2015-07-01 18:57:35,262] DEBUG - ServiceRequestsInFlightAutoscaler Values in Ap
p domain context: 0 - 0 - Ctxt: 3907204
[2015-07-01 18:57:35,268] DEBUG - ServiceRequestsInFlightAutoscaler Load Balance
r members of domain: wso2.carbon.lb.domain and sub domain: null running instance
s (including this): 2 - pending instances: 0
[2015-07-01 18:57:35,268] DEBUG - ServiceRequestsInFlightAutoscaler Load balance
r sanity check has started.
[2015-07-01 18:57:35,269] DEBUG - ServiceRequestsInFlightAutoscaler Sanity check
has started for: Domain: wso2.esb.domain - Sub Domain: worker
[2015-07-01 18:57:35,270] DEBUG - ServiceRequestsInFlightAutoscaler Sanity check
has started for: Domain: wso2.esb.domain - Sub Domain: mgt
[2015-07-01 18:57:35,287] ERROR - ClientUtils Address information does not exist
in the Endpoint Reference (EPR).The system cannot infer the transport mechanism
.
[2015-07-01 18:57:35,287] ERROR - ClientUtils Address information does not exist
in the Endpoint Reference (EPR).The system cannot infer the transport mechanism
.
[2015-07-01 18:57:35,289] ERROR - AutoscaleUtil Failed to start an instance of D
omain: wso2.esb.domain - Sub Domain: mgt.
org.apache.axis2.AxisFault: Address information does not exist in the Endpoint R
eference (EPR).The system cannot infer the transport mechanism.
at org.apache.axis2.description.ClientUtils.inferOutTransport(ClientUtil
s.java:73)
at org.apache.axis2.client.OperationClient.prepareMessageContext(Operati
onClient.java:288)
at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(Out
InAxisOperation.java:176)
at org.apache.axis2.client.OperationClient.execute(OperationClient.java:
149)
at org.wso2.carbon.stratos.cloud.controller.stub.CloudControllerServiceS
tub.startInstance(CloudControllerServiceStub.java:572)
at org.wso2.carbon.mediator.autoscale.lbautoscale.clients.CloudControlle
rStubClient.startInstance(CloudControllerStubClient.java:58)
at org.wso2.carbon.mediator.autoscale.lbautoscale.util.AutoscaleUtil.run
Instances(AutoscaleUtil.java:319)
at org.wso2.carbon.mediator.autoscale.lbautoscale.callables.AppNodeSanit
yCheckCallable.call(AppNodeSanityCheckCallable.java:81)
at org.wso2.carbon.mediator.autoscale.lbautoscale.callables.AppNodeSanit
yCheckCallable.call(AppNodeSanityCheckCallable.java:31)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:603)
at java.lang.Thread.run(Thread.java:722)
[2015-07-01 18:57:35,289] ERROR - AutoscaleUtil Failed to start an instance of D
omain: wso2.esb.domain - Sub Domain: worker.
org.apache.axis2.AxisFault: Address information does not exist in the Endpoint R
eference (EPR).The system cannot infer the transport mechanism.
at org.apache.axis2.description.ClientUtils.inferOutTransport(ClientUtil
s.java:73)
at org.apache.axis2.client.OperationClient.prepareMessageContext(Operati
onClient.java:288)
at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(Out
InAxisOperation.java:176)
at org.apache.axis2.client.OperationClient.execute(OperationClient.java:
149)
at org.wso2.carbon.stratos.cloud.controller.stub.CloudControllerServiceS
tub.startInstance(CloudControllerServiceStub.java:572)
at org.wso2.carbon.mediator.autoscale.lbautoscale.clients.CloudControlle
rStubClient.startInstance(CloudControllerStubClient.java:58)
at org.wso2.carbon.mediator.autoscale.lbautoscale.util.AutoscaleUtil.run
Instances(AutoscaleUtil.java:319)
at org.wso2.carbon.mediator.autoscale.lbautoscale.callables.AppNodeSanit
yCheckCallable.call(AppNodeSanityCheckCallable.java:81)
at org.wso2.carbon.mediator.autoscale.lbautoscale.callables.AppNodeSanit
yCheckCallable.call(AppNodeSanityCheckCallable.java:31)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:603)
at java.lang.Thread.run(Thread.java:722)
[2015-07-01 18:57:35,296] DEBUG - ServiceRequestsInFlightAutoscaler Autoscaling
analysis is starting to run for domain: wso2.esb.domain and sub domain: worker
[2015-07-01 18:57:35,298] DEBUG - ServiceRequestsInFlightAutoscaler Autoscaling
analysis is starting to run for domain: wso2.esb.domain and sub domain: mgt
[2015-07-01 18:57:35,298] DEBUG - ServiceRequestsInFlightAutoscaler Task finishe
d a cycle.
我的loadbalancer.conf文件：
loadbalancer {
# minimum number of load balancer instances
instances 1;
# fully qualified class name of load balancer enpoint which is extended from org.apache.synapse.endpoints.LoadbalanceEndpoint
lb_endpoint_class org.wso2.carbon.lb.endpoint.endpoint.TenantAwareLoadBalanceEndpoint;
# whether autoscaling should be enabled or not.
enable_autoscaler true;
# autoscaling decision making task
autoscaler_task org.wso2.carbon.mediator.autoscale.lbautoscale.task.ServiceRequestsInFlightAutoscaler;
# whether to use embedded autoscaler or not. By default, we use embedded autoscaler.
use_embedded_autoscaler false;
#please use this whenever url-mapping is used through LB.
#size_of_cache 100;
# End point reference of the Autoscaler Service. This should be present, if you disabled embedded autoscaling.
#autoscaler_service_epr https://host_address:https_port/services/AutoscalerService/;
# interval between two task executions in milliseconds
autoscaler_task_interval 60000;
# after an instance booted up, task will wait maximum till this much of time and let the server started up
server_startup_delay 6000; #default will be 60000ms
# session time out
session_timeout 900000;
# enable fail over
fail_over true;
#mb_server_url localhost:5672;
# whether domain mapping should be enabled or not.
enable_domain_mapping false;
}
# services' details which are fronted by this WSO2 Elastic Load Balancer
services {
# default parameter values to be used in all services
defaults {
# minimum number of service instances required. WSO2 ELB will make sure that this much of instances
# are maintained in the system all the time, of course only when autoscaling is enabled.
min_app_instances 1;
# maximum number of service instances that will be load balanced by this ELB.
max_app_instances 5;
# you need to calibrate autoscaling parameters before start using. Please go through following blog post
# http://nirmalfdo.blogspot.com/2013/01/scale-up-early-scale-down-slowly.html
max_requests_per_second 1;
alarming_upper_rate 0.1;
alarming_lower_rate 0.9;
scale_down_factor 0.25;
rounds_to_average 1;
message_expiry_time 60000;
}
esb {
domains{
wso2.esb.domain {
tenant_range *;
group_mgt_port 4500;
min_app_instances 1;
alarming_upper_rate 0.1;
alarming_lower_rate 0.9;
max_requests_per_second 1;
mgt {
hosts mgt.esb.wso2.com;
}
worker {
hosts esb.wso2.com;
}
worker {
hosts esb1.wso2.com;
}
}
}
}
}
感谢。
答案 0 :(得分：0)
仅通过更改WSO2 ELB中的配置无法自动缩放。见Auto-Scaling in Load Balancer 。
您需要为首选IaaS配置磁带。 ELB支持Amazon EC2和OpenStack。 Cartidge基本上是一个图像（例如EC2中的AMI），ELB可以从配置的图像中生成实例。在映像中，您需要配置如何连接到现有的WSO2产品集群并执行其他所需的配置。
然而正如我在其他Stack Overflow answer中提到的，不再推荐使用WSO2 ELB，它已经停止使用。
如果您需要具有WSO2产品的自动扩展平台，我们建议WSO2 Private PaaS。使用WSO2 Private PaaS，您将获得大多数常用的WSO2产品作为墨盒。