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Posted to issues@lucene.apache.org by "Jay (Jira)" <ji...@apache.org> on 2020/05/15 02:33:00 UTC
[jira] [Comment Edited] (SOLR-12057) CDCR does not replicate to
Collections with TLOG Replicas
[ https://issues.apache.org/jira/browse/SOLR-12057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17107860#comment-17107860 ]
Jay edited comment on SOLR-12057 at 5/15/20, 2:32 AM:
------------------------------------------------------
[~sarkaramrit2@gmail.com] Will this ticket be part of the future solr 8.x release?
was (Author: jsp08):
[~sarkaramrit2@gmail.com] Will this ticket be part of the future solr 8.x release?
> CDCR does not replicate to Collections with TLOG Replicas
> ---------------------------------------------------------
>
> Key: SOLR-12057
> URL: https://issues.apache.org/jira/browse/SOLR-12057
> Project: Solr
> Issue Type: Bug
> Components: CDCR
> Affects Versions: 7.2
> Reporter: Webster Homer
> Assignee: Varun Thacker
> Priority: Major
> Attachments: SOLR-12057.patch, SOLR-12057.patch, SOLR-12057.patch, SOLR-12057.patch, SOLR-12057.patch, SOLR-12057.patch, SOLR-12057.patch, cdcr-fail-with-tlog-pull.patch, cdcr-fail-with-tlog-pull.patch
>
>
> We created a collection using TLOG replicas in our QA clouds.
> We have a locally hosted solrcloud with 2 nodes, all our collections have 2 shards. We use CDCR to replicate the collections from this environment to 2 data centers hosted in Google cloud. This seems to work fairly well for our collections with NRT replicas. However the new TLOG collection has problems.
>
> The google cloud solrclusters have 4 nodes each (3 separate Zookeepers). 2 shards per collection with 2 replicas per shard.
>
> We never see data show up in the cloud collections, but we do see tlog files show up on the cloud servers. I can see that all of the servers have cdcr started, buffers are disabled.
> The cdcr source configuration is:
>
> "requestHandler":{"/cdcr":{
> "name":"/cdcr",
> "class":"solr.CdcrRequestHandler",
> "replica":[
> {
> "zkHost":"[xxx-mzk01.sial.com:2181|http://xxx-mzk01.sial.com:2181/],[xxx-mzk02.sial.com:2181|http://xxx-mzk02.sial.com:2181/],[xxx-mzk03.sial.com:2181/solr|http://xxx-mzk03.sial.com:2181/solr]",
> "source":"b2b-catalog-material-180124T",
> "target":"b2b-catalog-material-180124T"},
> {
> "zkHost":"[yyyy-mzk01.sial.com:2181|http://yyyy-mzk01.sial.com:2181/],[yyyy-mzk02.sial.com:2181|http://yyyy-mzk02.sial.com:2181/],[yyyy-mzk03.sial.com:2181/solr|http://yyyy-mzk03.sial.com:2181/solr]",
> "source":"b2b-catalog-material-180124T",
> "target":"b2b-catalog-material-180124T"}],
> "replicator":{
> "threadPoolSize":4,
> "schedule":500,
> "batchSize":250},
> "updateLogSynchronizer":\{"schedule":60000}}}}
>
> The target configurations in the 2 clouds are the same:
> "requestHandler":{"/cdcr":{ "name":"/cdcr", "class":"solr.CdcrRequestHandler", "buffer":{"defaultState":"disabled"}}}
>
> All of our collections have a timestamp field, index_date. In the source collection all the records have a date of 2/28/2018 but the target collections have a latest date of 1/26/2018
>
> I don't see cdcr errors in the logs, but we use logstash to search them, and we're still perfecting that.
>
> We have a number of similar collections that behave correctly. This is the only collection that is a TLOG collection. It appears that CDCR doesn't support TLOG collections.
>
> It looks like the data is getting to the target servers. I see tlog files with the right timestamps. Looking at the timestamps on the documents in the collection none of the data appears to have been loaded.In the solr.log I see lots of /cdcr messages action=LASTPROCESSEDVERSION, action=COLLECTIONCHECKPOINT, and action=SHARDCHECKPOINT
>
> no errors
>
> Target collections autoCommit is set to 60000 I tried sending a commit explicitly no difference. cdcr is uploading data, but no new data appears in the collection.
>
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