[
https://issues.apache.org/jira/browse/SOLR-1395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12919784#action_12919784
]
tom liu commented on SOLR-1395:
-------------------------------
No, that's four queries:
# on solr01, url is /select?fl=id,score&...
#* Shard=solrhome02#solrhome02
#* Shard=solrhome01#solrhome01
# on solr01, url is /select?ids=SOLR1000&fl=id,score,id&...
#* Shard=solrhome02#solrhome02
# on solr02, url is /select?ids=SOLR1000&fl=id,score&...
#* Shard=solrhome02#solrhome02
#* Shard=solrhome01#solrhome01
# on solr02, url is /select?ids=SOLR1000&ids=SOLR1000&...
#* Shard=solrhome01#solrhome01
If the orient query includes shards=*, then master solr would send * to
kattaclient.
And then, kattaclient or katta.Client would select node such as solr01, and
send shards=solrhome01#solrhome01,solrhome02#solrhome02
in middle-shard, searchHandler and queryComponent would invoke distributed
process, such as createMainQuery and createRetrieveDocs.
So, in any node, the query would be distributed into two queries:
# first is selecting id and score
# second is selecting docs
i have changed the queryComponent class. that is:
{code:title=distributedProcess|borderStyle=solid}
// Added by tom liu
// do or not need distributed process
boolean isShard = rb.req.getParams().getBool(ShardParams.IS_SHARD,
false);
// if in sub shards, do not need distributed process
if (isShard) {
if (rb.stage < ResponseBuilder.STAGE_PARSE_QUERY)
return ResponseBuilder.STAGE_PARSE_QUERY;
if (rb.stage == ResponseBuilder.STAGE_PARSE_QUERY) {
createDistributedIdf(rb);
return ResponseBuilder.STAGE_EXECUTE_QUERY;
}
if (rb.stage < ResponseBuilder.STAGE_EXECUTE_QUERY)
return ResponseBuilder.STAGE_EXECUTE_QUERY;
if (rb.stage == ResponseBuilder.STAGE_EXECUTE_QUERY) {
createMainQuery(rb);
return ResponseBuilder.STAGE_GET_FIELDS;
}
if (rb.stage < ResponseBuilder.STAGE_GET_FIELDS)
return ResponseBuilder.STAGE_GET_FIELDS;
if (rb.stage == ResponseBuilder.STAGE_GET_FIELDS) {
return ResponseBuilder.STAGE_DONE;
}
return ResponseBuilder.STAGE_DONE;
}
// add end
...
{code}
{code:title=handleResponses|borderStyle=solid}
if ((sreq.purpose & ShardRequest.PURPOSE_GET_TOP_IDS) != 0) {
mergeIds(rb, sreq);
// Added by tom liu
// do or not need distributed process
boolean isShard = rb.req.getParams().getBool(ShardParams.IS_SHARD,
false);
if(isShard){
sreq.purpose = ShardRequest.PURPOSE_GET_FIELDS;
}
// add end
}
if ((sreq.purpose & ShardRequest.PURPOSE_GET_FIELDS) != 0) {
returnFields(rb, sreq);
return;
}
{code}
{code:title=createMainQuery|borderStyle=solid}
sreq.params = new ModifiableSolrParams(rb.req.getParams());
// TODO: base on current params or original params?
// Added by tom liu
// do or not need distributed process
boolean isShard = rb.req.getParams().getBool(ShardParams.IS_SHARD,
false);
if(isShard){
// isShard=true, then do not change params
}else{
// add end
// don't pass through any shards param
sreq.params.remove(ShardParams.SHARDS);
...
{code}
{code:title=returnFields|borderStyle=solid}
boolean returnScores = (rb.getFieldFlags() &
SolrIndexSearcher.GET_SCORES) != 0;
// changed by tom liu
// add for loop
//assert(sreq.responses.size() == 1);
//ShardResponse srsp = sreq.responses.get(0);
for(ShardResponse srsp : sreq.responses){
SolrDocumentList docs =
(SolrDocumentList)srsp.getSolrResponse().getResponse().get("response");
String keyFieldName =
rb.req.getSchema().getUniqueKeyField().getName();
...
{code}
> Integrate Katta
> ---------------
>
> Key: SOLR-1395
> URL: https://issues.apache.org/jira/browse/SOLR-1395
> Project: Solr
> Issue Type: New Feature
> Affects Versions: 1.4
> Reporter: Jason Rutherglen
> Priority: Minor
> Fix For: Next
>
> Attachments: back-end.log, front-end.log, hadoop-core-0.19.0.jar,
> katta-core-0.6-dev.jar, katta.node.properties, katta.zk.properties,
> log4j-1.2.13.jar, solr-1395-1431-3.patch, solr-1395-1431-4.patch,
> solr-1395-1431-katta0.6.patch, solr-1395-1431-katta0.6.patch,
> solr-1395-1431.patch, SOLR-1395.patch, SOLR-1395.patch, SOLR-1395.patch,
> test-katta-core-0.6-dev.jar, zkclient-0.1-dev.jar, zookeeper-3.2.1.jar
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> We'll integrate Katta into Solr so that:
> * Distributed search uses Hadoop RPC
> * Shard/SolrCore distribution and management
> * Zookeeper based failover
> * Indexes may be built using Hadoop
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
