# Connection impossible to es **URL:** \ **Category:** Elasticsearch\ **Created:** [April 17, 2012, 9:23am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365 "2012-04-17T09:23:29Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Jerome](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@Jerome](https://discuss.elastic.co/u/Jerome)\ **Post date:** [April 17, 2012, 9:23am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/1 "2012-04-17T09:23:29Z")
Hi, Today when i run my program appears an error, for the first time, last week there's no error. Error says impossible to connect. I don't understand why today and not last week, more than i can't execute my job now because cannot connect. * * * Script code : * * * #!/usr/bin/perl use strict; use warnings; use ElasticSearch; ``` my $es = ElasticSearch->new( transport => 'http', servers => 'localhost:9200' ); $es->cluster_health( wait_for_status => 'yellow' ); ``` * * * Error * * * [ERROR] \*\* ElasticSearch::Error::NoServers at /Library/Perl/5.10.0/ ElasticSearch/Transport.pm line 256 : Could not retrieve a list of active servers: [ERROR] \*\* ElasticSearch::Error::Connection at /Library/Perl/ 5.10.0/ElasticSearch/Transport/HTTP.pm line 60 : Can't connect to localhost:9200 (connect: Connection refused) (500) ``` With vars:{ 'request' => { 'qs' => {}, 'cmd' => '/_cluster/nodes', 'method' => 'GET' }, 'status_code' => 500, 'server' => 'localhost:9200', 'status_msg' => 'Can\'t connect to localhost:9200 (connect: ``` Connection refused)' } With vars:{ 'servers' =\> [ 'localhost:9200' ] } Thanks ---
**Author:** ![Clinton\_Gormley](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)\ **Post date:** [April 17, 2012, 9:31am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/2 "2012-04-17T09:31:30Z")
Hi Jerome > Today when i run my program appears an error, for the first time, last > week there's no error. > Error says impossible to connect. I don't understand why today and not > last week, more than i can't execute my job now because cannot > connect. Are you sure elasticsearch is running? clint > * * * > > Script code : > > * * * > > #!/usr/bin/perl > > use strict; > use warnings; > > use Elasticsearch; > > ``` > my $es = ElasticSearch->new( > transport => 'http', > servers => 'localhost:9200' > ); > $es->cluster_health( wait_for_status => 'yellow' ); > > ``` > > * * * > > Error > > * * * > > [ERROR] \*\* Elasticsearch::Error::NoServers at /Library/Perl/5.10.0/ > Elasticsearch/Transport.pm line 256 : > Could not retrieve a list of active servers: > [ERROR] \*\* Elasticsearch::Error::Connection at /Library/Perl/ > 5.10.0/Elasticsearch/Transport/HTTP.pm line 60 : > Can't connect to localhost:9200 (connect: Connection refused) > (500) > > ``` > With vars:{ > 'request' => { > 'qs' => {}, > 'cmd' => '/_cluster/nodes', > 'method' => 'GET' > }, > 'status_code' => 500, > 'server' => 'localhost:9200', > 'status_msg' => 'Can\'t connect to localhost:9200 (connect: > > ``` > > Connection refused)' > } > > With vars:{ > 'servers' =\> [ > 'localhost:9200' > ] > } > > Thanks ---
**Author:** ![Sushis](https://avatars.discourse-cdn.com/v4/letter/s/bc79bd/32.png) [@Sushis](https://discuss.elastic.co/u/Sushis)\ **Post date:** [April 17, 2012, 9:45am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/3 "2012-04-17T09:45:43Z")
I feel really really stupid... Sorry for disturbing. ---
**Author:** ![Jerome](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@Jerome](https://discuss.elastic.co/u/Jerome)\ **Post date:** [April 17, 2012, 10:18am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/4 "2012-04-17T10:18:39Z")
I feel really really stupid... but there's no stupid question ! (maybe yes in fact...) As you can see i'm just starting with ES in PERL and i have an other question : I have an other script for indexing all data in a file. But the error : Can't locate object method "index" via package "type7\_1" (perhaps you forgot to load "type7\_1"?) at lectureFichiers.pm line 36, line 1. I don't understand the message someone can explain ? ---
**Author:** ![Clinton\_Gormley](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)\ **Post date:** [April 17, 2012, 10:26am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/5 "2012-04-17T10:26:47Z")
> Can't locate object method "index" via package "type7\_1" (perhaps you > forgot to load "type7\_1"?) at lectureFichiers.pm line 36, line > 1. You don't show the code, but you are calling method 'index' on a variable, and that variable contains the value 'type7\_1', rather than an instance of Elasticsearch.pm In other words, you're doing something like this: $es = 'type7\_1'; $es-\>index(.....) Perhaps you are trying to chain method calls? $es = Elasticsearch-\>new()-\>use\_type('type7\_1')-\>index(...) ? The methods in Elasticsearch.pm are not chainable clint ---
**Author:** ![Jerome](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@Jerome](https://discuss.elastic.co/u/Jerome)\ **Post date:** [April 17, 2012, 10:41am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/6 "2012-04-17T10:41:48Z")
Ah forgot the code. I understand with your help but i don't see my problem. sub lireFasta { my @paramIndex = $\_[0]; #contain index name and type name ``` my $es = $_[1]; # $_[1] contain an instance of ElasticSearch, ``` i've checked that ``` my $in = Bio::SeqIO -> new(-file => $ARGV[0], -format => ``` 'fasta'); my $result; ``` #Recuperation sequences my $i = 1; while ( my $seq = $in->next_seq() ) { my $id = $seq->primary_id; my $desc = $seq->desc; my $sequence = $seq->seq; $result = $es->index( index => $paramIndex[0], # THIS LINE type => $paramIndex[1], id => $i, data => { ID => $id, DESC => $desc, SEQ => $sequence }, ); $i++; } } ``` On Apr 17, 12:26 pm, Clinton Gormley [cl...@traveljury.com](mailto:cl...@traveljury.com) wrote: > > Can't locate object method "index" via package "type7\_1" (perhaps you > > forgot to load "type7\_1"?) at lectureFichiers.pm line 36, line > > 1. > > You don't show the code, but you are calling method 'index' on a > variable, and that variable contains the value 'type7\_1', rather than an > instance of Elasticsearch.pm > > In other words, you're doing something like this: > > $es = 'type7\_1'; > $es-\>index(.....) > > Perhaps you are trying to chain method calls? > > $es = Elasticsearch-\>new()-\>use\_type('type7\_1')-\>index(...) ? > > The methods in Elasticsearch.pm are not chainable > > clint On Apr 17, 12:26 pm, Clinton Gormley [cl...@traveljury.com](mailto:cl...@traveljury.com) wrote: > > Can't locate object method "index" via package "type7\_1" (perhaps you > > forgot to load "type7\_1"?) at lectureFichiers.pm line 36, line > > 1. > > You don't show the code, but you are calling method 'index' on a > variable, and that variable contains the value 'type7\_1', rather than an > instance of Elasticsearch.pm > > In other words, you're doing something like this: > > $es = 'type7\_1'; > $es-\>index(.....) > > Perhaps you are trying to chain method calls? > > $es = Elasticsearch-\>new()-\>use\_type('type7\_1')-\>index(...) ? > > The methods in Elasticsearch.pm are not chainable > > clint ---
**Author:** ![Clinton\_Gormley](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)\ **Post date:** [April 17, 2012, 10:53am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/7 "2012-04-17T10:53:25Z")
Hi Jerome This isn't the right forum for this question, as your issue is purely with Perl, nothing to do with Elasticsearch. Also, much better to gist code ([Discover gists · GitHub](http://gist.github.com/gists)) rather than pasting into an email. > sub lireFasta { > my @paramIndex = $\_[0]; #contain index name and type name The above line isn't doing what you think it is doing. I bet you are calling this sub as: lireFasta(@index\_and\_type,$es) but the contents of @index\_and\_type are flattened, so you end up with: ``` lireFasta('index','type',$es) ``` You need to pass the array as a reference instead: ``` lireFasta(\@index_and_type,$es) sub lireFasta { my $paramIndex = $_[0]; my $es = $_[1]; .... $es->index( index => $paramIndex->[0], type => $paramIndex->[1] ``` .... clint ---
**Author:** ![Jerome](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@Jerome](https://discuss.elastic.co/u/Jerome)\ **Post date:** [April 17, 2012, 11:08am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/8 "2012-04-17T11:08:02Z")
Aaaaah, i don't know that... But thank you, it works. Thank you very much and thanks for the PERL module ! On Apr 17, 12:53 pm, Clinton Gormley [cl...@traveljury.com](mailto:cl...@traveljury.com) wrote: > Hi Jerome > > This isn't the right forum for this question, as your issue is purely > with Perl, nothing to do with Elasticsearch. > > Also, much better to gist code ([Discover gists · GitHub](http://gist.github.com/gists)) rather > than pasting into an email. > > > sub lireFasta { > > my @paramIndex = $\_[0]; #contain index name and type name > > The above line isn't doing what you think it is doing. > > I bet you are calling this sub as: lireFasta(@index\_and\_type,$es) > > but the contents of @index\_and\_type are flattened, so you end up with: > > ``` > lireFasta('index','type',$es) > > ``` > > You need to pass the array as a reference instead: > > ``` > lireFasta(\@index_and_type,$es) > sub lireFasta { > my $paramIndex = $_[0]; > my $es = $_[1]; > > .... > $es->index( > index => $paramIndex->[0], > type => $paramIndex->[1] > > ``` > > .... > > clint ---
**Author:** ![Jerome](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@Jerome](https://discuss.elastic.co/u/Jerome)\ **Post date:** [April 17, 2012, 11:45am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/9 "2012-04-17T11:45:49Z")
I have two more question, concerning the update method in your perl API. This method can change the data in an existing index but if i want add a field can i use it ? for example if i have : ... data{ name =\> toto, surname =\> tata, age =\> 18 }, }; Can i add a field for have : ? ... data{ name =\> toto, surname =\> tata, age =\> 18, newfield =\> tutu }, }; One more thing, can you explain one line of your doc ? $es-\>update( index =\> 'test', type =\> 'foo', id =\> 123, script =\> 'ctx.\_source.tags+=[tag]', # This one params =\> { tag =\> 'red' } ); I don't understand, ''ctx.\_source.tags" is a script name ? and "+=[tag]" significate you want add a tag ? Your doc is really good except on this point (in my point of view). Jerome ---
**Author:** ![Clinton\_Gormley](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)\ **Post date:** [April 17, 2012, 11:53am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/10 "2012-04-17T11:53:21Z")
HIya > This method can change the data in an existing index but if i want add > a field can i use it ? yes > $es-\>update( > index =\> 'test', > type =\> 'foo', > id =\> 123, > script =\> 'ctx.\_source.tags+=[tag]', # This one > params =\> { tag =\> 'red' } > ); > > I don't understand, ''ctx.\_source.tags" is a script name ? and > "+=[tag]" significate you want add a tag ? > Your doc is really good except on this point (in my point of view). Yes, that is a script, but I can't explain all about mvel scripting in my API docs. The docs in Elasticsearch.pm can't be read in isolation - you also need to read the docs on [elasticsearch.org](http://elasticsearch.org). The relevant page is linked to just under the docs that you quote above [https://metacpan.org/module/ElasticSearch#update-](https://metacpan.org/module/ElasticSearch#update-) clint ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 3:32am UTC](https://discuss.elastic.co/t/connection-impossible-to-es/7365/11 "2017-07-06T03:32:19Z")