Ouch, why such an old version of java? (And is is Open or Oracle?) v7 is the minimum for ES and LS.
Regards, Mark Walkom Infrastructure Engineer Campaign Monitor email: [email protected] web: www.campaignmonitor.com On 25 March 2014 18:20, Robin Clarke <[email protected]> wrote: > Thanks for the tip with the number of masters! > > java version "1.6.0_45" on Debian 3.2.54-2 > > > On 25 March 2014 07:55, Mark Walkom <[email protected]> wrote: > >> Java version? Also what OS? >> >> Just as a general note, it's always good to have an uneven number of >> masters to ensure you get a majority quorum. >> >> Regards, >> Mark Walkom >> >> Infrastructure Engineer >> Campaign Monitor >> email: [email protected] >> web: www.campaignmonitor.com >> >> >> On 25 March 2014 17:35, Robin Clarke <[email protected]> wrote: >> >>> Each node had 8 cores (2.4GHz Xeon), 32GB RAM, SSD disks (I never saw >>> IOWait, but was also focusing on ingestion rate). >>> I always had 2 master nodes, and in addition tried the configurations >>> 20, 10 and 5 data nodes. >>> Running Elasticsearch 1.0.1 (but with Logstash 1.3.3) >>> >>> -Robin- >>> >>> >>> On 25 March 2014 06:17, Mark Walkom <[email protected]> wrote: >>> >>>> Can you elaborate what your cluster setup is like? >>>> >>>> Node specs (disk, RAM, CPU), how many master/data nodes and what >>>> version of ES and java you're running? >>>> >>>> Regards, >>>> Mark Walkom >>>> >>>> Infrastructure Engineer >>>> Campaign Monitor >>>> email: [email protected] >>>> web: www.campaignmonitor.com >>>> >>>> >>>> On 25 March 2014 16:11, Robin Clarke <[email protected]> wrote: >>>> >>>>> I did some intensive tests last week on a 20-node cluster and had >>>>> the following insights - I'd be interested if anyone has >>>>> similar/dissimilar >>>>> experience. >>>>> The had 20 nodes had 8 cores each, and 32GB memory each. I set up >>>>> Elasticsearch to have 15GB of that memory. >>>>> The sample events I was using were Apache logs (common format) without >>>>> any additional fields (no geoip, useragent etc. plugins). >>>>> When running as a 20-node cluster, I got a maximum igestion rate of >>>>> 2500k events/minute (41k/second), *but* the bottleneck was the >>>>> logstash CPU load... so I reduced to a 10 node cluster... >>>>> With the 10 nodes I initially had 1600k/minute (27k) and acheived >>>>> 1800k/minute (30k/second) by increasing index_refresh_interval to 30s and >>>>> index_buffer_size to 20% >>>>> Further reducing to 5 nodes, I had 1100k/minute (18k/second). >>>>> This brings me to an interesting comparison: at 10 nodes, I have 3k >>>>> events/second/node, and with 5 nodes I have 3.66k events/second/node. i.e. >>>>> the overhead for doubling the number of nodes from 5 to 10 is about 20%. >>>>> Is this to be expected? Just how scalable is Elasticsearch - at what >>>>> point is the diminishing return on adding nodes not cost effective? >>>>> Is the further logical reduction to 375 events/core/second still >>>>> meaningful? >>>>> >>>>> Cheers, >>>>> -Robin- >>>>> >>>>> -- >>>>> 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/3353dab5-6241-4b41-8845-6c5f8553d488%40googlegroups.com<https://groups.google.com/d/msgid/elasticsearch/3353dab5-6241-4b41-8845-6c5f8553d488%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 a topic in the >>>> Google Groups "elasticsearch" group. >>>> To unsubscribe from this topic, visit >>>> https://groups.google.com/d/topic/elasticsearch/muIKhFkrxFc/unsubscribe >>>> . >>>> To unsubscribe from this group and all its topics, send an email to >>>> [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/elasticsearch/CAEM624b8a8ZZbOc81g18XZWNz3qYV3gby%3DCtGrPZ8f%2BwiXXYEg%40mail.gmail.com<https://groups.google.com/d/msgid/elasticsearch/CAEM624b8a8ZZbOc81g18XZWNz3qYV3gby%3DCtGrPZ8f%2BwiXXYEg%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> >>> >>> -- >>> Best winds, >>> -Robin- >>> ~:) >>> >>> -- >>> 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/CACX78vaf_r-GY6KVMk95R-jip-aMdr2y20-WwNL84jQe0PvD1Q%40mail.gmail.com<https://groups.google.com/d/msgid/elasticsearch/CACX78vaf_r-GY6KVMk95R-jip-aMdr2y20-WwNL84jQe0PvD1Q%40mail.gmail.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 a topic in the >> Google Groups "elasticsearch" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/elasticsearch/muIKhFkrxFc/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/elasticsearch/CAEM624audypF5E%2BDyZcUJmf%2BtddunbLswKPwEJMyHQ_X%2B2xdEw%40mail.gmail.com<https://groups.google.com/d/msgid/elasticsearch/CAEM624audypF5E%2BDyZcUJmf%2BtddunbLswKPwEJMyHQ_X%2B2xdEw%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Best winds, > -Robin- > ~:) > > -- > 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/CACX78vYbV7%2BJ7c7_aSjzh7UL4e3vykgws9pFMevjZetarcEGJA%40mail.gmail.com<https://groups.google.com/d/msgid/elasticsearch/CACX78vYbV7%2BJ7c7_aSjzh7UL4e3vykgws9pFMevjZetarcEGJA%40mail.gmail.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/CAEM624Zv19Ww7qYthS9ti1XgNF3E0e2eFQ8dsf0aPLA9Z-Mgrw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
