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https://issues.apache.org/jira/browse/CLOUDSTACK-4350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13749992#comment-13749992
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ASF subversion and git services commented on CLOUDSTACK-4350:
-------------------------------------------------------------
Commit eeac80eaa2c66569d96140eef34a7e219e4e25f1 in branch refs/heads/master
from [~koushikd]
[ https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;h=eeac80e ]
CLOUDSTACK-4350: [Performance Testing] Adding hosts take much longer time than
baselines
During host connect multiple listeners gets invoked, one of them is the
download listener.
As part of processConnect() method, it checks if templates needs to be
downloaded to secondary
store for a particular HV type. As part of that check it computes list of HVs
present in the
zone. The earlier logic was to query all hosts (excluding current one) and
iterate over them to
make the list. This is not optimal and is bound to have some latency as the
number of hosts
increases.
Optimized the logic by querying the list of HVs from the db. directly instead
of iterating over
all hosts in the zone.
Conflicts:
server/src/com/cloud/resource/ResourceManagerImpl.java
> [Performance Testing] Adding hosts take much longer time than baselines
> -----------------------------------------------------------------------
>
> Key: CLOUDSTACK-4350
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-4350
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server
> Affects Versions: 4.2.0
> Environment: 4.2, performance test env, with simulator
> Reporter: Sowmya Krishnan
> Assignee: Koushik Das
> Priority: Critical
> Labels: perfomance
> Fix For: Future
>
>
> Performance test setup:
> Basic zone, 1 host/cluster, tyring to deploy 20K simulator Hosts, with host
> tags
> Compared to baseline numbers, deploying hosts is taking much longer in the
> simulator environment
> For the 1st 1000 hosts, it took about 4 mins to deploy as per baseline
> With 4.2, the 1st 1000 hosts are taking almost 7 minutes
> Configurations:
> heap size: -Xmx12288m
> db.cloud.url.params=prepStmtCacheSize=517&cachePrepStmts=true&prepStmtCacheSqlLimit=4096&includeInnodbStatusInDeadlockExceptions=true&logSlowQueries=true
> For 20K Hosts, the number exponentially increases and the deployment time
> also increases.
> Attaching trace logs of 4.2 for 1k simulator hosts deployment.
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