If you remove a node then the corresponding replicas around the cluster will be promoted to primaries and new replicas are initialised. You can definitely remove a node, you can either stop the service and let things recover, or use the shutdown API call to do it in a more ordered fashion.
On 8 January 2015 at 08:37, Bhumir Jhaveri <bhumi...@gmail.com> wrote: > what happens when you take off one of the node which is already having > some shards allocated to it? > Is it like replica would then come into play at that time? > If permanently I want to decommission a node - is that a possible or that > is something one shouldn't be doing? > > > > > On Wednesday, January 7, 2015 11:46:57 AM UTC-8, Mark Walkom wrote: >> >> Yes it auto distributes existing, and new, shards. >> >> On 8 January 2015 at 05:55, Bhumir Jhaveri <bhum...@gmail.com> wrote: >> >>> Also one more question - lets say intially I have one node architecture >>> - i.e. everything on one single node and additional mount is having all the >>> ES data (index, documents etc) which is like of 300 gigs - now lets say if >>> I add more data nodes - so going forward it will distribute the shards to >>> different nodes or existing data will automatically be redistributed too? >>> >>> >>> >>> On Wednesday, January 7, 2015 9:57:44 AM UTC-8, David Pilato wrote: >>>> >>>> No you don’t have to reindex. >>>> Elasticsearch can read segments generated with previous elasticsearch >>>> version. >>>> >>>> -- >>>> *David Pilato* | *Technical Advocate* | *Elasticsearch.com >>>> <http://Elasticsearch.com>* >>>> @dadoonet <https://twitter.com/dadoonet> | @elasticsearchfr >>>> <https://twitter.com/elasticsearchfr> | @scrutmydocs >>>> <https://twitter.com/scrutmydocs> >>>> >>>> >>>> >>>> Le 7 janv. 2015 à 18:50, Bhumir Jhaveri <bhum...@gmail.com> a écrit : >>>> >>>> Alright cool David! if this is the pain point then I dont think that I >>>> should limit this upgrade to only 1.3 - I will go for 1.4 >>>> >>>> one more thing - I already have around 300 GB(max capacity 2TB) of >>>> indexed data available in my additional storage which I exclusively kept >>>> for ES - so far this 300 gigs of data has been generated by ES1.2 - now if >>>> I move to ES 1.4 - will that cause any issue? >>>> Do I need to regenerate anything over here or ES 1.4 will automatically >>>> accept whatever has been generated by ES1.2? >>>> >>>> its more of back compatibility point which I am trying to raise here. >>>> >>>> >>>> >>>> On Wednesday, January 7, 2015 9:46:50 AM UTC-8, David Pilato wrote: >>>>> >>>>> It’s most likely because on your dev system, you are running out of >>>>> disk space. >>>>> Elasticsearch 1.4.x does not allocate replicas if you have more than >>>>> 85% disk usage. >>>>> You can change this settings by modifying for example >>>>> elasticsearch.yml and set: >>>>> >>>>> cluster.routing.allocation.disk.watermark.low: 1gb >>>>> cluster.routing.allocation.disk.watermark.high: 500mb >>>>> >>>>> Regarding your question, I would go for 1.4. >>>>> >>>>> HTH >>>>> >>>>> -- >>>>> *David Pilato* | *Technical Advocate* | *Elasticsearch.com >>>>> <http://elasticsearch.com/>* >>>>> @dadoonet <https://twitter.com/dadoonet> | @elasticsearchfr >>>>> <https://twitter.com/elasticsearchfr> | @scrutmydocs >>>>> <https://twitter.com/scrutmydocs> >>>>> >>>>> >>>>> >>>>> Le 7 janv. 2015 à 18:41, Bhumir Jhaveri <bhum...@gmail.com> a écrit : >>>>> >>>>> I am planning to upgrade from ES 1.2.2 to ES 1.4.2 or 1.3.9 or >>>>> whichever is the most latest (stable) in 1.3 series - so should I go for >>>>> 1.4 or should stay with 1.3? >>>>> the reason why I am not thinking about absolute upgrade to 1.4 is just >>>>> so that if certain things like shards allocations to different node/s >>>>> suddenly doesnt work or may be I am wrong too - I mean this type of sudden >>>>> and obvious things just stops working - I am still new to ES world and not >>>>> knowing ES fully. >>>>> >>>>> Not sure - need opinions on your experience if any? >>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "elasticsearch" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to elasticsearc...@googlegroups.com. >>>>> To view this discussion on the web visit https://groups.google.co >>>>> m/d/msgid/elasticsearch/ae8afb06-d923-4bf6-ac3c-adcb35a51fdf >>>>> %40googlegroups.com >>>>> <https://groups.google.com/d/msgid/elasticsearch/ae8afb06-d923-4bf6-ac3c-adcb35a51fdf%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>>> >>>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "elasticsearch" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to elasticsearc...@googlegroups.com. >>>> To view this discussion on the web visit https://groups.google.co >>>> m/d/msgid/elasticsearch/5e503a64-c9b2-42f2-9d0f-187c89f097dc >>>> %40googlegroups.com >>>> <https://groups.google.com/d/msgid/elasticsearch/5e503a64-c9b2-42f2-9d0f-187c89f097dc%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "elasticsearch" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to elasticsearc...@googlegroups.com. >>> To view this discussion on the web visit https://groups.google.com/d/ >>> msgid/elasticsearch/b2818693-9307-44fc-af38-b529d2fc3d05% >>> 40googlegroups.com >>> <https://groups.google.com/d/msgid/elasticsearch/b2818693-9307-44fc-af38-b529d2fc3d05%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to elasticsearch+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elasticsearch/33d1e12d-e527-495b-854e-e59987a649ae%40googlegroups.com > <https://groups.google.com/d/msgid/elasticsearch/33d1e12d-e527-495b-854e-e59987a649ae%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. 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