[GitHub] [metron] tigerquoll opened a new pull request #1558: METRON-2312 solr scripts fixup

[GitBox <gi...@apache.org>]

tigerquoll opened a new pull request #1558: METRON-2312 solr scripts fixup
URL: https://github.com/apache/metron/pull/1558
 
 
   ## Contributor Comments
   Issue being fixed:
   
   1. Install HDP Search 4 or greater.
   2. `source /etc/defaults/metron`
   3. `$METRON_HOME/bin/add-collection bro`
   
   The command returns 
   ```
   Node does not exist: /live_nodes
   curl: (6) Could not resolve host: WatchedEvent state:SyncConnected type:None path; Unknown error
   curl: (6) Could not resolve host: WatchedEvent state:SyncConnected type:None path; Unknown error
   ```
   and the SOLR collection is not created.
   
   The readme in Metron-solr-common notes that the scripts do not work outside of Ambari by default if SOLR is using chroot zookeeper addressing and that you need to manually tweak $ZOOKEEPER environment variable to include the chrooted Zookeeper addresses that SOLR is storing its information at.
   
   The fix:
   1. Test the return value of zkcli command that pools SOLR Cloud configuration information for Zookeeper.
   a. If zkcli did not return a SOLR Cloud node, return 1.
   b. if zkcli did not return a SOLR Cloud node, and $ZOOKEEPER does not end in '/solr', make a suggestion to the user that it should.
   
   Testing:
   ```
   echo $ZOOKEEPER
   localhost:2181
   [root@node1 bin]# ./delete_collection.sh bro
   Node does not exist: /live_nodes
   Error occurred while attempting to read SOLR Cloud configuration data from Zookeeper.
   Warning! Environment variable ZOOKEEPER=localhost:2181 does not contain a chrooted zookeeper ensemble address - are you sure you do not mean ZOOKEEPER=localhost:2181/solr?
   ```
   
   ```
   [root@y134 bin]# export ZOOKEEPER=hdpsearchHost:2181/solr
   [root@y134 bin]# ./delete_collection.sh foo . 
   {
     "responseHeader":{
       "status":400,
       "QTime":90},
     "Operation delete caused exception:":"org.apache.solr.common.SolrException:org.apache.solr.common.SolrException: Could not find collection : foo",
     "exception":{
       "msg":"Could not find collection : foo",
       "rspCode":400},
     "error":{
       "metadata":[
         "error-class","org.apache.solr.common.SolrException",
         "root-error-class","org.apache.solr.common.SolrException"],
       "msg":"Could not find collection : foo",
       "code":400}}
   {
     "responseHeader":{
       "status":400,
       "QTime":31},
     "Operation delete caused exception:":"org.apache.solr.common.SolrException:org.apache.solr.common.SolrException: ConfigSet does not exist to delete: foo",
     "exception":{
       "msg":"ConfigSet does not exist to delete: foo",
       "rspCode":400},
     "error":{
       "metadata":[
         "error-class","org.apache.solr.common.SolrException",
         "root-error-class","org.apache.solr.common.SolrException"],
       "msg":"ConfigSet does not exist to delete: foo",
       "code":400}}
   ```
   
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