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Grzegorz Kolpuc
@gkolpuc
https://pl.linkedin.com/pub/grzegorz-kolpuc/55/b7/700
grzegorzkolpuc@gmail.com
Event Platform
Financial & Risk IP & Science
Legal News
Tax & Accounting Technology & OPS
60,000+
EMPLOYEES
10,000+
IN TECHNOLOGY
1200+
EMPLOYEES IN GDYNIA
150+
IN TECHNOLOGY
Eikon
Elastic Development
Implementing big data search
Distributed Search Engine
Full-text search
Analytics
open source
document-oriented
based on Lucene
distributed
search
analytics
full-text search
filtering (exact matches, ranges, geo)
cacheable
Plugins
API extensions
scripting
analysis
scripting
Plugins
API extensions
scripting
analysis
scripting
Marvel
Native client
fluent API
single request
bulk requests
bulk processor
1. Highlight offset
standard highlighter
"highlight": {
"StrEvntBriefBlob": [
"continues to see <b>pressure</b> on
internal growth"
]
}
"snippets": [
{
"snippet": "continues to see
<b>pressure</b> on internal growth",
"startOff": 2082,
"endOff": 2126,
"pages": [0],
"snippetID": 1
}
]
fvhEx highlighter
2. Cross cluster search
cluster_threecluster_twocluster_one
newsfilings
research
events
Tribe Node
cluster_threecluster_twocluster_one
newsfilings
research
events
Tribe Node
tribe:
t1:
cluster.name: cluster_one
t2:
cluster.name: cluster_two
t2:
cluster.name: cluster_three
3. Analytics
grouping search result
statistics
metrics
"aggregations": {
"events_grouped": {
"terms": {"field": "group"},
"aggregations": {
"top_events": {
"top_hits": {
"size": 10,
"sort": [
{"date": {"order": "desc"}}
]
}
}
}
}
}
"aggs": {
"level2": {
"date_histogram": {
"field": "timestamp",
"interval": "day",
"order": {"_key": "desc"}
},
"aggs": {
"level3": {
"terms": {"field": "host"},
"aggs": {
"level4": {
"terms": {"field":
"apiRequest.appId"}
}
}
}}}}
4. Geo search
distance filter
polygon filter
bounding box filter
shape query
"location": {
"type": "geo_shape",
"tree": "quadtree",
"precision": "1m"
}
"position": {
"type": "geo_point"
}
5. Scripting
if nothing else works
decrease performance
‘total count of snippets’
{
"query": {
"function_score": {
"query": {
"query_string": {"query":
"Average "Running five""}
},
"script_score": {>>>>},
"boost_mode": "replace"
}
},
"sort": [{"_score": {}}]
}
"script_score": {
"script_id": "scount6",
"lang": "groovy",
"params": {
"terms": ["average"],
"phases": [
{
"distance": 1,
"phase": ["running","five"]
}
],
"fields": [{"field": "StrEvntTranscriptBlob",
"grp": 111}]
}
},
"boost_mode": "replace"
6. Alerting
users subscribed to data
notify users when data changes
Elastic Search
Percolate
Elastic Search
index documentsquery
Any Cons?
Low throughput
org.elasticsearch.common.util.concurrent.EsRejectedExecutionException
org.elasticsearch.cluster.block.ClusterBlockException
{
"error": "NoShardAvailableActionException
[[std_events_sem_021215][5] null]",
“status": 503
}
Support
Reindex
Apply mapping changes online
Updatable number of shards in the index
Shard splitting
15+
Clusters
3+
percolate clusters
~75
nodes per cluster
250+
indices
16+
TB of indexed data
7,000,000,000+
documents
100,000+
queries per day (EVENTS)
500,000+
queries per day (expected for research)
Q?
Elastic development. Implementing Big Data search Grzegorz Kołpuć

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