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https://issues.apache.org/jira/browse/SOLR-10677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shalin Shekhar Mangar updated SOLR-10677:
-----------------------------------------
Attachment: SOLR-10677.patch
* Adds support for metrics such as heapUsage and sysLoadAvg (earlier it was
called cpu)
* The diagnostics api returns sortedNodes (which is the nodes sorted from most
loaded to least loaded according to cluster preferences) and violations (which
clause from policies is violated by which node/replica and why).
* The sortedNodes only returns those metrics which are actually used in cluster
preferences
* If no cluster preferences are supplied, it returns cores because core count
if the default preference in the cluster (for backcompat)
* Added tests in AutoScalingHandlerTest.testReadApi().
This is ready.
> Expose a diagnostics API to gives details of how loaded each node is,
> according to the policies
> -----------------------------------------------------------------------------------------------
>
> Key: SOLR-10677
> URL: https://issues.apache.org/jira/browse/SOLR-10677
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Reporter: Shalin Shekhar Mangar
> Assignee: Shalin Shekhar Mangar
> Labels: autoscaling
> Fix For: master (7.0)
>
> Attachments: SOLR-10677.patch, SOLR-10677.patch, SOLR-10677.patch,
> SOLR-10677.patch
>
>
> Expose a diagnostics API to gives details of how loaded each node is,
> according to the configured cluster policy and preferences. This should
> probably fold into the autoscaling read APIs added in SOLR-10373.
> By adding {{diagnostics=true}} as a request parameter for /admin/autoscaling
> (for v1 API) or /cluster/autoscaling (for v2 API), the API returns the list
> of nodes in sorted order according to the cluster preferences configured.
> API v1:
> {code}
> curl
> http://localhost:8983/solr/admin/autoscaling?diagnostics=true&wt=json&indent=on
> {code}
> or API v2:
> {code}
> http://localhost:8983/v2/cluster/autoscaling?diagnostics=true&wt=json&indent=on
> {code}
> {code}
> {
> "responseHeader":{
> "status":0,
> "QTime":59},
> "cluster-preferences":[{
> "minimize":"cores",
> "precision":3},
> {
> "maximize":"freedisk",
> "precision":100},
> {
> "minimize":"sysLoadAvg",
> "precision":10}],
> "cluster-policy":[{
> "cores":"<10",
> "node":"#ANY"},
> {
> "replica":"<2",
> "shard":"#EACH",
> "node":"#ANY"},
> {
> "nodeRole":"!overseer",
> "replica":"#ANY"}],
> "diagnostics":{
> "sortedNodes":[{
> "node":"127.0.1.1:7574_solr",
> "cores":12,
> "freedisk":74816704512,
> "sysLoadAvg":72.0},
> {
> "node":"127.0.1.1:8983_solr",
> "cores":12,
> "freedisk":74816704512,
> "sysLoadAvg":72.0}],
> "violations":[{
> "collection":"xyz",
> "shard":"shard1",
> "node":"127.0.1.1:7574_solr",
> "violation":{
> "replica":"10"},
> "clause":{
> "replica":"<2",
> "shard":"#EACH",
> "node":"#ANY",
> "collection":"xyz"}},
> {
> "collection":"xyz",
> "shard":"shard1",
> "node":"127.0.1.1:8983_solr",
> "violation":{
> "replica":"10"},
> "clause":{
> "replica":"<2",
> "shard":"#EACH",
> "node":"#ANY",
> "collection":"xyz"}}]},
> "WARNING":"This response format is experimental. It is likely to change in
> the future."}
> {code}
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