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Message #15381
[Bug 1256118] Re: elasticsearch install hangs if ElasticSearch Server not running
What is needed is a function like
is_elasticsearch_server_available()
Which checks to see if a connection can be made to the ElasticSearch
Server - returning true/false
That way we could use it in places like
admin/extensions/pluginconfig.php?plugintype=search&pluginname=elasticsearch
to complement the "The Elasticsearch plugin is currently active."
message with something like "The Elasticsearch Server is/is not
currently reachable".
And we could use it on search/elasticsearch/index.php to suppress the
"An exception was thrown of class Elastica\Exception\ClientException. No
enabled connection" warnings if the ElasticSearch Server is not able to
be accessed.
We could instead have a "We were unable to process your search - please
try again. If the problem persists please contact your administrator"
message for the page.
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https://bugs.launchpad.net/bugs/1256118
Title:
elasticsearch install hangs if ElasticSearch Server not running
Status in Mahara ePortfolio:
Confirmed
Bug description:
If you try to enable the elasticsearch search option in Configure site
-> Site options -> Search settings when the ElasticSearch Server is
not running it hangs on saving site options.
There needs to be a report back to the screen that an error occurred
like 'ElasticSearch Server is not running, please start service and
try again'
Actually for this to work we'd need to check if it is running before
letting them choose it - because the site option is saved before the
failure so coming back to the page it shows the search is set to
'elasticsearch' which is incorrect.
The error log has errors like this:
[WAR] 15 (lib/errors.php:448) An exception was thrown of class Elastica\\Exception\\ClientException. , referer: http://mahara-testing/admin/site/options.php
[WAR] 15 (lib/errors.php:448) THIS IS BAD and should be changed to something extending MaharaException,, referer: http://mahara-testing/admin/site/options.php
[WAR] 15 (lib/errors.php:448) unless the exception is from a third party library., referer: http://mahara-testing/admin/site/options.php
[WAR] 15 (lib/errors.php:448) Original trace follows, referer: http://mahara-testing/admin/site/options.php
[WAR] 15 (lib/elastica/lib/Elastica/Client.php:431) No enabled connection, referer: http://mahara-testing/admin/site/options.php
Call stack (most recent first):, referer: http://mahara-testing/admin/site/options.php
* Elastica\\Client->getConnection() at /home/robertl/htdocs/mahara-testing/mahara/htdocs/lib/elastica/lib/Elastica/Client.php:530, referer: http://mahara-testing/admin/site/options.php
* Elastica\\Client->request("mahara/", "DELETE", array(size 0), array(size 0)) at /home/robertl/htdocs/mahara-testing/mahara/htdocs/lib/elastica/lib/Elastica/Client.php:551, referer: http://mahara-testing/admin/site/options.php
* Elastica\\Client->request("mahara/", "DELETE", array(size 0), array(size 0)) at /home/robertl/htdocs/mahara-testing/mahara/htdocs/lib/elastica/lib/Elastica/Index.php:405, referer: http://mahara-testing/admin/site/options.php
* Elastica\\Index->request("", "DELETE") at /home/robertl/htdocs/mahara-testing/mahara/htdocs/lib/elastica/lib/Elastica/Index.php:133, referer: http://mahara-testing/admin/site/options.php
* Elastica\\Index->delete() at /home/robertl/htdocs/mahara-testing/mahara/htdocs/lib/elastica/lib/Elastica/Index.php:184, referer: http://mahara-testing/admin/site/options.php
* Elastica\\Index->create(array(size 3), true) at /home/robertl/htdocs/mahara-testing/mahara/htdocs/search/elasticsearch/lib.php:1363, referer: http://mahara-testing/admin/site/options.php
* ElasticsearchIndexing::create_index() at /home/robertl/htdocs/mahara-testing/mahara/htdocs/search/elasticsearch/lib.php:403, referer: http://mahara-testing/admin/site/options.php
* PluginSearchElasticsearch::reset_all_searchtypes() at /home/robertl/htdocs/mahara-testing/mahara/htdocs/search/elasticsearch/lib.php:371, referer: http://mahara-testing/admin/site/options.php
* PluginSearchElasticsearch::initialize_sitewide() at Unknown:0, referer: http://mahara-testing/admin/site/options.php
* call_user_func_array(array(size 2), array(size 0)) at /home/robertl/htdocs/mahara-testing/mahara/htdocs/lib/mahara.php:1453, referer: http://mahara-testing/admin/site/options.php
* call_static_method("PluginSearchElasticsearch", "initialize_sitewide") at /home/robertl/htdocs/mahara-testing/mahara/htdocs/admin/site/options.php:763, referer: http://mahara-testing/admin/site/options.php
* siteoptions_submit(object(Pieform), array(size 65)) at Unknown:0, referer: http://mahara-testing/admin/site/options.php
* call_user_func_array("siteoptions_submit", array(size 2)) at /home/robertl/htdocs/mahara-testing/mahara/htdocs/lib/pieforms/pieform.php:528, referer: http://mahara-testing/admin/site/options.php
* Pieform->__construct(array(size 7)) at /home/robertl/htdocs/mahara-testing/mahara/htdocs/lib/pieforms/pieform.php:170, referer: http://mahara-testing/admin/site/options.php
* Pieform::process(array(size 7)) at /home/robertl/htdocs/mahara-testing/mahara/htdocs/lib/pieforms/pieform.php:71, referer: http://mahara-testing/admin/site/options.php
* pieform(array(size 7)) at /home/robertl/htdocs/mahara-testing/mahara/htdocs/admin/site/options.php:673, referer: http://mahara-testing/admin/site/options.php
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