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From Kudrettin Güleryüz <kudret...@gmail.com>
Subject Re: All shards placed on the same node
Date Mon, 06 Apr 2020 17:08:42 GMT
Thank you Sandeep. Actually there is a reasoning behind core precision to
be 10. I didn't want cores to be the only criteria. Setting precision to 1
would pretty much work like that.

I have a higher preference for freedisk to be distributed evenly but
doesn't seem like it works that well if core is missing or secondary in the
preferences list. Couldn't locate a good resource on Autoscaling API.

Nevertheless, setting precision to 3 seems to be doing what I intend to.

On Sun, Apr 5, 2020 at 9:49 PM Sandeep Dharembra <
sandeep.dharembra@gmail.com> wrote:

> Hey,
>
> Please change the precision in cluster preference for core to 1 instead of
> 10 and then give a try.
>
> With current settings, 2 nodes are not treated different till they have a
> difference of 10 cores.
>
> Thanks,
>
>
> On Mon, Apr 6, 2020, 2:09 AM Kudrettin Güleryüz <kudrettin@gmail.com>
> wrote:
>
> > Hi,
> >
> > Running 7.3.1 on an 8 node Solr cloud. Why would solr create all 6 shards
> > on the same node? I don't want to restrict Solr to create up to x number
> of
> > shards per node but creating all shards on the same node doesn't look
> right
> > to me.
> >
> > Will Solr use all space on one node before using another one? Here is my
> > autoscaling configuration:
> >
> > {
> >   "cluster-preferences":[
> >     {
> >       "minimize":"cores",
> >       "precision":10},
> >     {
> >       "precision":100,
> >       "maximize":"freedisk"},
> >     {
> >       "minimize":"sysLoadAvg",
> >       "precision":3}],
> >   "cluster-policy":[{
> >       "freedisk":"<10",
> >       "replica":"0",
> >       "strict":"true"}],
> >   "triggers":{".auto_add_replicas":{
> >       "name":".auto_add_replicas",
> >       "event":"nodeLost",
> >       "waitFor":120,
> >       "actions":[
> >         {
> >           "name":"auto_add_replicas_plan",
> >           "class":"solr.AutoAddReplicasPlanAction"},
> >         {
> >           "name":"execute_plan",
> >           "class":"solr.ExecutePlanAction"}],
> >       "enabled":true}},
> >   "listeners":{".auto_add_replicas.system":{
> >       "trigger":".auto_add_replicas",
> >       "afterAction":[],
> >       "stage":[
> >         "STARTED",
> >         "ABORTED",
> >         "SUCCEEDED",
> >         "FAILED",
> >         "BEFORE_ACTION",
> >         "AFTER_ACTION",
> >         "IGNORED"],
> >       "class":"org.apache.solr.cloud.autoscaling.SystemLogListener",
> >       "beforeAction":[]}},
> >   "properties":{}}
> >
>

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