This might be better raised as an issue on github as one of the devs can comment directly on the code you're interested in.
On 14 January 2015 at 23:10, Meidan <[email protected]> wrote: > Hi, > > We're in the process of upgrading from 0.90.5 to 1.4.1 and we see a > significant performance depredation in one of our queries. > A short profiling session shows that the biggest difference is in the > "nested native script" part of the query (see attached), which accounted > for about 10% of the total search time in 0.90.5, but now it accounts for > almost 50% in 1.4.1. > Most of that time is spent in > org.elasticsearch.search.lookup.DocLookup.get(Object), which in turn calls > a lot to > org.elasticsearch.index.fielddata.ordinals.SinglePackedOrdinals$Docs.getOrd(int) > and the script looks something like this: > > private Map<String, Double> multipliers; > public float runAsFloat() { > ScriptDocValues.Strings term = > (ScriptDocValues.Strings)doc().get("nested > document term"); > ScriptDocValues.Doubles strength = (ScriptDocValues.Doubles) doc > ().get("nested document term strength"); > > double score = multipliers.get(term.getValue()) * (1 + strength. > getValue()); > return (float)score; > } > > Any idea on what changed between 0.90.5 and 1.4.1 that could have caused > this? > Is there a better way of doing DocLookup that I'm missing? > > -- > 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/847a79a0-05a5-450c-a4c4-39ceb49cf0e3%40googlegroups.com > <https://groups.google.com/d/msgid/elasticsearch/847a79a0-05a5-450c-a4c4-39ceb49cf0e3%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/CAEYi1X8ifx%3D6NVKOdqj5s_8ofD3G86SNgFORH3P9f0LzurKaVw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
