Weird highlighting error ... failed to highlight field ... String index out of range

concept47 · April 1, 2013, 6:07am

I cannot make head or tail of this error, and its happening pretty randomly
to where I don't even know where to start looking.

This is what the full error looks like

Tire::Search::SearchRequestFailed: 500 :
{"error":"SearchPhaseExecutionException[Failed to execute phase
[query_fetch], total failure; shardFailures
{[7McitJnjQkqLkViqUpZUyw][content][4]:
FetchPhaseExecutionException[[content][4]: query[+_all:account +_all:set
+_all:up],from[0],size[20]: Fetch Failed [Failed to highlight field
[post_content]]]; nested: StringIndexOutOfBoundsException[String index out
of range: -5]; }]","status":500}

A query like
"relationship learning"
will run fine, but running
"relationship centered learning"
will throw the error, actually any of these letters c, d, j, q, x, z used
with "relationship learning" .. like "d relationship learning" will throw
the error.

Its truly maddening.

I'm running elasticsearch 19.2 with Tire
I just want to know where to start looking, any ideas will help.

Thanks

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simonw_2 · April 1, 2013, 9:19am

can you see any errors in the log files that give more information about
what happens here? or can you make this reproducible with a selfcontained
gist?

simon

On Monday, April 1, 2013 8:07:32 AM UTC+2, concept47 wrote:

I cannot make head or tail of this error, and its happening pretty
randomly to where I don't even know where to start looking.

This is what the full error looks like

Tire::Search::SearchRequestFailed: 500 :
{"error":"SearchPhaseExecutionException[Failed to execute phase
[query_fetch], total failure; shardFailures
{[7McitJnjQkqLkViqUpZUyw][content][4]:
FetchPhaseExecutionException[[content][4]: query[+_all:account +_all:set
+_all:up],from[0],size[20]: Fetch Failed [Failed to highlight field
[post_content]]]; nested: StringIndexOutOfBoundsException[String index out
of range: -5]; }]","status":500}

A query like
"relationship learning"
will run fine, but running
"relationship centered learning"
will throw the error, actually any of these letters c, d, j, q, x, z used
with "relationship learning" .. like "d relationship learning" will throw
the error.

Its truly maddening.

I'm running elasticsearch 19.2 with Tire
I just want to know where to start looking, any ideas will help.

Thanks

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concept47 · April 1, 2013, 4:48pm

Its too random to reproduce, and I'm trying to track down what could be
wrong.
The error occurs on random queries, but once those queries error out, they
always error out.

Nothing in Elasticsearch logs. In fact this is all thats in there.

[2013-04-01 05:20:37,638][INFO ][org.elasticsearch.node ] [Arclight]
{0.19.2}[30832]: initializing ...
[2013-04-01 05:20:37,758][INFO ][org.elasticsearch.plugins] [Arclight]
loaded , sites [mapper-attachments, cloud-aws]
[2013-04-01 05:20:41,208][INFO ][org.elasticsearch.node ] [Arclight]
{0.19.2}[30832]: initialized
[2013-04-01 05:20:41,208][INFO ][org.elasticsearch.node ] [Arclight]
{0.19.2}[30832]: starting ...
[2013-04-01 05:20:41,309][INFO ][org.elasticsearch.transport] [Arclight]
bound_address {inet[/0:0:0:0:0:0:0:0:9300]}, publish_address
{inet[/10.0.92.233:9300]}
[2013-04-01 05:20:44,367][INFO ][org.elasticsearch.cluster.service]
[Arclight] new_master
[Arclight][Hc-s8CDOSuq6iN21XM0TAg][inet[/10.0.92.233:9300]], reason:
zen-disco-join (elected_as_master)
[2013-04-01 05:20:44,425][INFO ][org.elasticsearch.discovery] [Arclight]
elasticsearch-production/Hc-s8CDOSuq6iN21XM0TAg
[2013-04-01 05:20:44,453][INFO ][org.elasticsearch.http ] [Arclight]
bound_address {inet[/0:0:0:0:0:0:0:0:9200]}, publish_address
{inet[/10.0.92.233:9200]}
[2013-04-01 05:20:44,453][INFO ][org.elasticsearch.node ] [Arclight]
{0.19.2}[30832]: started
[2013-04-01 05:20:47,454][INFO ][org.elasticsearch.gateway] [Arclight]
recovered [3] indices into cluster_state

On Monday, April 1, 2013 4:19:00 AM UTC-5, simonw wrote:

can you see any errors in the log files that give more information about
what happens here? or can you make this reproducible with a selfcontained
gist?

simon

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concept47 · April 1, 2013, 6:23pm

Here's a gist of a guy wwho was having the same exact problem, complete
with an elasticsearch stack trace

gist.github.com

https://gist.github.com/lukas-vlcek/5005428

gistfile1.js

curl -X PUT localhost:9200/myindex -d '
{
  "settings" : {
    "index":{
      "number_of_replicas":0,
      "number_of_shards":1,
      "analysis":{
        "analyzer":{
          "default":{
            "type":"custom",

This file has been truncated. show original

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concept47 · April 1, 2013, 10:50pm

Here's my stack trace (finally figured out how to get it)

gist.github.com

https://gist.github.com/ike-bloomfire/058639517390762fb389

gistfile1.txt

[2013-04-01 22:48:12,581][DEBUG][org.elasticsearch.action.search.type] [Paul Patterson] [content][1], node[gqt6wR9AT4KiIIH6_PWvHw], [P], s[STARTED]: Failed to execute [org.elasticsearch.action.search.SearchRequest@105ef1eb]
org.elasticsearch.search.fetch.FetchPhaseExecutionException: [content][1]: query[+_all:relationship +_all:c +_all:learning],from[0],size[20]: Fetch Failed [Failed to highlight field [description]]
  at org.elasticsearch.search.highlight.HighlightPhase.hitExecute(HighlightPhase.java:316)
	at org.elasticsearch.search.fetch.FetchPhase.execute(FetchPhase.java:249)
	at org.elasticsearch.search.SearchService.executeFetchPhase(SearchService.java:318)
	at org.elasticsearch.search.action.SearchServiceTransportAction.sendExecuteFetch(SearchServiceTransportAction.java:242)
	at org.elasticsearch.action.search.type.TransportSearchQueryAndFetchAction$AsyncAction.sendExecuteFirstPhase(TransportSearchQueryAndFetchAction.java:75)
	at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:204)
	at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:191)
	at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$2.run(TransportSearchTypeAction.java:177)

This file has been truncated. show original

thanks for the help

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simonw_2 · April 3, 2013, 9:27am

this seems to be a Lucene issue, I have a lucene testcase that reproduces
this problem. it seems to be caused by
this: [LUCENE-4899] FastVectorHighlihgter fails with SIOOB if single phrase or term is > fragCharSize - ASF JIRA

can you raise frag size to see if it goes away?

simon
On Tuesday, April 2, 2013 12:50:28 AM UTC+2, concept47 wrote:

Here's my stack trace (finally figured out how to get it)
stack trace of elasticsearch highlighting error/bug · GitHub
thanks for the help

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concept47 · April 3, 2013, 10:02pm

We can't, because specific ux interactions in our app depend on that
particular restriction.
What we will do drop the use of fast vector highlighter, then watch that
lucene ticket to see when it gets resolved and eventually makes its way
into elasticsearch, before turning it back on.

thank you so very much for all your help Simon.
This was driving me absolutely crazy.

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concept47 · April 4, 2013, 5:13am

Another question, where can I report this bug?

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simonw_2 · April 5, 2013, 6:36pm

hey,

so I can try to put this into a lucene test but I guess this is rather an
ngram issue than a highlighter issue.
Can you open an issue on github (elasticsearch) and I take it from there?

simon

On Thursday, April 4, 2013 7:13:40 AM UTC+2, concept47 wrote:

Another question, where can I report this bug?

Elasticsearch highlighting on ngram filter is weird if min_gram is set to 1 - Stack Overflow

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concept47 · April 5, 2013, 7:12pm

Done. https://github.com/elasticsearch/elasticsearch/issues/2839
Thank you!

Ike

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concept47 · April 9, 2013, 10:33pm

Hey Simon,
I just discovered that term_vector takes the following as arguments, yes,
with_offsets, with_positions in addition to with_position_offsets.
Could using one of the other arguments (not with_positions_offsets) avoid
this exceptions?

On Wednesday, April 3, 2013 4:27:00 AM UTC-5, simonw wrote:

this seems to be a Lucene issue, I have a lucene testcase that reproduces
this problem. it seems to be caused by this:
[LUCENE-4899] FastVectorHighlihgter fails with SIOOB if single phrase or term is > fragCharSize - ASF JIRA

can you raise frag size to see if it goes away?

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concept47 · May 1, 2013, 9:27am

Hi Simon.
It seems you got this fixed in
Lucene. [LUCENE-4899] FastVectorHighlihgter fails with SIOOB if single phrase or term is > fragCharSize - ASF JIRA
Any idea when it will go into Elasticsearch?

On Wednesday, April 3, 2013 2:27:00 AM UTC-7, simonw wrote:

this seems to be a Lucene issue, I have a lucene testcase that reproduces
this problem. it seems to be caused by this:
[LUCENE-4899] FastVectorHighlihgter fails with SIOOB if single phrase or term is > fragCharSize - ASF JIRA

can you raise frag size to see if it goes away?

simon
On Tuesday, April 2, 2013 12:50:28 AM UTC+2, concept47 wrote:

Here's my stack trace (finally figured out how to get it)
stack trace of elasticsearch highlighting error/bug · GitHub
thanks for the help

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Weird highlighting error ... failed to highlight field ... String index out of range

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