Thank you for your answer! I would like to learn Logstash and take reindex into consideration.
best regards, shinyke 在 2015年5月28日星期四 UTC+8下午5:21:00，Mark Walkom写道： > > You don't need to stop everything to reindex, leverage aliases and you can > do it live. > > On 28 May 2015 at 18:57, <xinm...@163.com <javascript:>> wrote: > >> >> Thanks for your answer~ >> >> May be when 10 servers extends to 100 servers it can work ,but I‘m afraid >> that if we do reindex to 100 servers it may cost a long time and huge I/O >> resources.We need to stop the service for a long time and all the data need >> to transport from old index to new one. >> >> Is there any easier way to horizontal expansion？ >> >> P.S. I cann’t visit https://discuss.elastic.co/ >> <https://discuss.elastic.co/> today .It is blank all the time. (･ˇ_ˇ･) >> >> >> 在 2015年5月28日星期四 UTC+8下午3:05:13，Mark Walkom写道： >>> >>> You don't want 400 shards on 10 servers. You do want the ability to >>> reindex to allow you to reshard to deal with this issue. >>> Logstash 1.5 can do this very easily, see this example >>> <https://gist.github.com/markwalkom/8a7201e3f6ea4354ae06>. >>> >>> However you probably don't want an index with 200 shards irrespective, >>> you may want to take a look at your data structure and split things out. >>> >>> >>> PS - We're moving to https://discuss.elastic.co/, please join us there >>> for any future discussions! >>> >>> >>> >>> On 28 May 2015 at 12:46, <xinm...@163.com> wrote: >>> >>>> >>>> Hi， >>>> >>>> I feel very confuse when deciding the number of primary shards at >>>> beginning. >>>> >>>> As we know the number of shards and replicas can be defined per index >>>> at the time the index is created. After the index is created, we may >>>> change >>>> the number of replicas dynamically anytime but we cannot change the number >>>> of primary shards after-the-fact. Our ES project may be run as trial >>>> version at beginning an it is only 10 machines in cluster. However, if the >>>> project run in production environment, the machine magnitude must >>>> increase and there will have 200 or more machines. >>>> >>>> How can we decide shards number at beginning? Is it encourage to run >>>> 400 or more shards in 10 machines, will it reduce the performance of >>>> cluster? >>>> >>>> >>>> Thank you for reading and look forward to your suggestions. >>>> >>>> >>>> -- >>>> Please update your bookmarks! We have moved to >>>> https://discuss.elastic.co/ >>>> --- >>>> 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/a6eb715a-6543-4882-8635-81a0d22ca1d7%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/elasticsearch/a6eb715a-6543-4882-8635-81a0d22ca1d7%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >> Please update your bookmarks! We have moved to >> https://discuss.elastic.co/ >> --- >> 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 <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/elasticsearch/65cd6e3e-97f1-416e-8f97-e34a8dd7671e%40googlegroups.com >> >> <https://groups.google.com/d/msgid/elasticsearch/65cd6e3e-97f1-416e-8f97-e34a8dd7671e%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > -- Please update your bookmarks! We have moved to https://discuss.elastic.co/ --- 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/5591e786-fa10-4727-9bf0-ba8b10ad8786%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
