That's actually a great point! You can probably reduce the RAM and then see how it performs.
On 12 November 2014 20:55, lagarutte via elasticsearch < [email protected]> wrote: > if i set 4Gb heap for 8Gb system master node only, for what purposes are > the remaning 4GB ? > > For the filesystem cache (but the master don't do IOs) ? > > > > > Le mardi 11 novembre 2014 22:46:50 UTC+1, Mark Walkom a écrit : >> >> You should use 50% of your system memory for heap. >> >> A client is just a node that is neither a master or a data node, though >> once you set a node to master, you can leverage it as a client as well. >> >> On 12 November 2014 05:02, lagarutte via elasticsearch < >> [email protected]> wrote: >> >>> Ok, since the master doesn't contain any data, and don't do lot ofs IOs: >>> For 8GB RAM, what's the recommended HEAP_SIZE ? 7GB >>> >>> >>> and i don't fully understand the client (query management node). >>> Today, i have set node.master=true and node.data=true. >>> and with new master only, i will have masters only nodes and data only >>> nodes. >>> >>> >>> What the correct setting for client node ? node.client=true (with >>> node.master=false and node.data=false) with http adress set ? >>> so i don't need to tell the masters adress to the other applications >>> like logstash, tomcat, ... ? >>> >>> >>> Le mardi 11 novembre 2014 09:45:17 UTC+1, Mark Walkom a écrit : >>>> >>>> I'd suggest you go for 8GB system RAM with a small disk and then also >>>> use these nodes as clients - ie query management. >>>> >>>> You may need more RAM, but that should be a good start. >>>> >>>> On 11 November 2014 19:35, lagarutte via elasticsearch < >>>> [email protected]> wrote: >>>> >>>>> Hello, >>>>> I'm currently thinking of creating VM nodes for the masters. >>>>> >>>>> Today, several nodes have master and data node roles. >>>>> But I have OOM memory errors and so masters crashed frequently. >>>>> >>>>> What would be the correct hardware sizing for a master node only (like >>>>> 2 CPUs, 4GB RAM) for managing a cluster of 20 data nodes with 4000 shards >>>>> ? >>>>> >>>>> >>>>> regards >>>>> >>>>> -- >>>>> 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 [email protected]. >>>>> To view this discussion on the web visit https://groups.google.com/d/ >>>>> msgid/elasticsearch/6447f37c-68d7-4c22-aa1f-4bbf022df3b7%40goo >>>>> glegroups.com >>>>> <https://groups.google.com/d/msgid/elasticsearch/6447f37c-68d7-4c22-aa1f-4bbf022df3b7%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 [email protected]. >>> To view this discussion on the web visit https://groups.google.com/d/ >>> msgid/elasticsearch/2a49b009-4522-45b1-86af-9bafdb56db95% >>> 40googlegroups.com >>> <https://groups.google.com/d/msgid/elasticsearch/2a49b009-4522-45b1-86af-9bafdb56db95%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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elasticsearch/0b48c2e8-9e95-46bd-80f7-d99e67980ada%40googlegroups.com > <https://groups.google.com/d/msgid/elasticsearch/0b48c2e8-9e95-46bd-80f7-d99e67980ada%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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAF3ZnZmmGuaQK-5e4zHwWDd5VgibLqOT8i%3Dwm59i0v-wcT16nw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
