Array
(
    [2] => 172.29.52.121
    [3] => 172.29.52.117
)
keys=2 ,values=172.29.52.121
fjsdljfApache_Solr_Service Object
(
    [_host:protected] => 172.29.52.121
    [_port:protected] => 8080
    [_path:protected] => /solr/solr_commodity/
    [_createDocuments:protected] => 1
    [_collapseSingleValueArrays:protected] => 1
    [_namedListTreatment:protected] => map
    [_queryDelimiter:protected] => ?
    [_queryStringDelimiter:protected] => &
    [_pingUrl:protected] => http://172.29.52.121:8080/solr/solr_commodity/admin/ping
    [_updateUrl:protected] => http://172.29.52.121:8080/solr/solr_commodity/update?wt=json
    [_searchUrl:protected] => http://172.29.52.121:8080/solr/solr_commodity/select
    [_threadsUrl:protected] => http://172.29.52.121:8080/solr/solr_commodity/admin/threads?wt=json
    [_urlsInited:protected] => 1
    [_getContext:protected] => Resource id #4
    [_postContext:protected] => Resource id #5
    [_defaultTimeout:protected] => 60
    [_dismaxUrl] => http://172.29.52.121:8080/solr/solr_commodity/browse
)

 not ping 
keys=3 ,values=172.29.52.117
fjsdljfApache_Solr_Service Object
(
    [_host:protected] => 172.29.52.117
    [_port:protected] => 8080
    [_path:protected] => /solr/solr_commodity/
    [_createDocuments:protected] => 1
    [_collapseSingleValueArrays:protected] => 1
    [_namedListTreatment:protected] => map
    [_queryDelimiter:protected] => ?
    [_queryStringDelimiter:protected] => &
    [_pingUrl:protected] => http://172.29.52.117:8080/solr/solr_commodity/admin/ping
    [_updateUrl:protected] => http://172.29.52.117:8080/solr/solr_commodity/update?wt=json
    [_searchUrl:protected] => http://172.29.52.117:8080/solr/solr_commodity/select
    [_threadsUrl:protected] => http://172.29.52.117:8080/solr/solr_commodity/admin/threads?wt=json
    [_urlsInited:protected] => 1
    [_getContext:protected] => Resource id #10
    [_postContext:protected] => Resource id #11
    [_defaultTimeout:protected] => 60
    [_dismaxUrl] => http://172.29.52.117:8080/solr/solr_commodity/browse
)

 not ping