On 9/20/15, 2:09 AM, Akila Ravihansa Perera wrote:
Hi Vanson,
Thanks for reporting this. This has been a known issue causing problems when updating IaaS parameters. A work-around would be to redeploy
the cartridge definition which forces it to re-build. I haven't tested it though. Your solution also works, but were you able to look
into to the performance overhead of re-building every time?
Akila,
No I haven't had a chance to look at the performance overhead, but yes, the suggested diffs are inefficient. Alternatively, for only the
partition update case, we could optimize each Iaas's partition validate routines to only call buidIaas() once after all the properties have
been updated.
For Example, the revised function for the openstack IAAS is attached.
Currently only the partition validate routines make use of buildIaas:
https://github.com/apache/stratos/search?utf8=✓&q=buildIaas
I'll try updating the cartridge, but I have a hard time see how that works for partition definitions since it would execute the same
codeflow below. Only the validate() function below attempts to parse the partition's zone property and propagate it into the IaasProvider
definition.
Besides the cartridge update workaround, do you have any suggestions for other
ways we could fix this.
-Vanson
On Sun, Sep 20, 2015 at 10:59 AM, Vanson Lim <v...@cisco.com
<mailto:v...@cisco.com>> wrote:
Stratos developers,
I found an issue where defining an availability "zone" property in a
partition has no affect on controlling the placement of a VM
launched under openstack.
The code which builds the template (iaas.initialize) used by jclouds is
executed only once before stratos appends the availability
zone properties to the iaas datastructure.
The problem is in the buildIaas() call shown below:
https://github.com/apache/stratos/blob/92ff7e9b5800d578a37d6aa82551d60fbdd66529/components/org.apache.stratos.cloud.controller/src/main/java/org/apache/stratos/cloud/controller/iaases/openstack/OpenstackPartitionValidator.java
The issue also exists in the cloudstack, ec2, gce and docker variants of
this function.
@Override
public IaasProvider validate(Partition partition, Properties
properties) throws InvalidPartitionException {
try {
// validate the existence of the zone and hosts
properties.
if (properties.containsKey(Scope.region.toString())) {
String region =
properties.getProperty(Scope.region.toString());
if (iaasProvider.getImage() != null &&
!iaasProvider.getImage().contains(region)) {
String msg = "Invalid partition detected, invalid
region: [partition-id] " + partition.getId() +
" [region] " + region;
log.error(msg);
throw new InvalidPartitionException(msg);
}
iaas.isValidRegion(region);
IaasProvider updatedIaasProvider = new
IaasProvider(iaasProvider);
* Iaas updatedIaas =
CloudControllerServiceUtil.buildIaas(updatedIaasProvider);*
updatedIaas.setIaasProvider(updatedIaasProvider);
if (properties.containsKey(Scope.zone.toString())) {
String zone =
properties.getProperty(Scope.zone.toString());
iaas.isValidZone(region, zone);
updatedIaasProvider.setProperty(CloudControllerConstants.AVAILABILITY_ZONE,
zone);
* updatedIaas =
CloudControllerServiceUtil.buildIaas(updatedIaasProvider);*
updatedIaas.setIaasProvider(updatedIaasProvider);
}
updateOtherProperties(updatedIaasProvider, properties);
return updatedIaasProvider;
} else {
return iaasProvider;
}
} catch (Exception e) {
String msg = "Invalid partition detected: [partition-id]
" + partition.getId() + e.getMessage();
log.error(msg, e);
throw new InvalidPartitionException(msg, e);
}
}
private void updateOtherProperties(IaasProvider
updatedIaasProvider,
Properties properties) {
Iaas updatedIaas;
try {
* updatedIaas =
CloudControllerServiceUtil.buildIaas(updatedIaasProvider);*
for (Object property : properties.keySet()) {
if (property instanceof String) {
String key = (String) property;
updatedIaasProvider.setProperty(key,
properties.getProperty(key));
if (log.isDebugEnabled()) {
log.debug("Added property " + key
+ " to the IaasProvider.");
}
}
}
* updatedIaas =
CloudControllerServiceUtil.buildIaas(updatedIaasProvider);*
updatedIaas.setIaasProvider(updatedIaasProvider);
} catch (InvalidIaasProviderException ignore) {
}
}
buidIaas() calls getIaas() under the covers and only initializes the compute template the first time it is called.
buildIaas() is called a second time after the availability_zone property is set, and then a third/fourth time in
updateOtherProperties().
As show below, getIaas() only calls iaas.initilize() the first
time it's called.
public class CloudControllerServiceUtil {
...
public static Iaas buildIaas(IaasProvider iaasProvider)
throws InvalidIaasProviderException {
return iaasProvider.getIaas();
}
....
public class IaasProvider implements Serializable {
....
public Iaas getIaas() {
if (iaas == null) {
synchronized (IaasProvider.this) {
if (iaas == null) {
try {
iaas =
CloudControllerUtil.createIaasInstance(this);
iaas.initialize();
} catch (InvalidIaasProviderException e) {
throw new RuntimeException("Could not create
IaaS instance", e);
}
}
}
}
return iaas;
}
....
I propose the attached diffs to define buildIaas() such that it
forces the iaas datastructure to be reinitialized, if this
looks okay, I'll see about getting this pushed upstream.
I've also validated this on my openstack setup.
Regards,
-Vanson
--
Akila Ravihansa Perera
WSO2 Inc.; http://wso2.com/
Blog: http://ravihansa3000.blogspot.com
diff --git
a/components/org.apache.stratos.cloud.controller/src/main/java/org/apache/stratos/cloud/controller/iaases/openstack/OpenstackPartitionValidator.java
b/components/org.apache.stratos.cloud.controller/src/main/java/org/apache/stratos/cloud/controller/iaases/openstack/OpenstackPartitionValidator.java
index 24f8e01..c20f287 100644
---
a/components/org.apache.stratos.cloud.controller/src/main/java/org/apache/stratos/cloud/controller/iaases/openstack/OpenstackPartitionValidator.java
+++
b/components/org.apache.stratos.cloud.controller/src/main/java/org/apache/stratos/cloud/controller/iaases/openstack/OpenstackPartitionValidator.java
@@ -61,19 +61,18 @@ public class OpenstackPartitionValidator implements
PartitionValidator {
iaas.isValidRegion(region);
IaasProvider updatedIaasProvider = new
IaasProvider(iaasProvider);
- Iaas updatedIaas =
CloudControllerServiceUtil.buildIaas(updatedIaasProvider);
- updatedIaas.setIaasProvider(updatedIaasProvider);
if (properties.containsKey(Scope.zone.toString())) {
String zone =
properties.getProperty(Scope.zone.toString());
iaas.isValidZone(region, zone);
updatedIaasProvider.setProperty(CloudControllerConstants.AVAILABILITY_ZONE,
zone);
- updatedIaas =
CloudControllerServiceUtil.buildIaas(updatedIaasProvider);
- updatedIaas.setIaasProvider(updatedIaasProvider);
}
updateOtherProperties(updatedIaasProvider, properties);
+
+ Iaas updatedIaas =
CloudControllerServiceUtil.buildIaas(updatedIaasProvider);
+ updatedIaas.setIaasProvider(updatedIaasProvider);
return updatedIaasProvider;
} else {
@@ -88,10 +87,7 @@ public class OpenstackPartitionValidator implements
PartitionValidator {
private void updateOtherProperties(IaasProvider updatedIaasProvider,
Properties properties) {
- Iaas updatedIaas;
try {
- updatedIaas =
CloudControllerServiceUtil.buildIaas(updatedIaasProvider);
-
for (Object property : properties.keySet()) {
if (property instanceof String) {
String key = (String) property;
@@ -103,8 +99,6 @@ public class OpenstackPartitionValidator implements
PartitionValidator {
}
}
}
- updatedIaas =
CloudControllerServiceUtil.buildIaas(updatedIaasProvider);
- updatedIaas.setIaasProvider(updatedIaasProvider);
} catch (InvalidIaasProviderException ignore) {
}
