[ https://issues.apache.org/jira/browse/SOLR-11676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307025#comment-16307025 ]
Varun Thacker commented on SOLR-11676: -------------------------------------- I ran into this while doing a simple restore. Steps to reproduce: 1. ./bin/solr start -e cloud -noprompt : This creates a 2 node cluster and a gettingstarted collection which 2X2 2. Added 4 docs (id=1,2,3,4) with commit=true and openSearcher=true (default) 3. Call backup: http://localhost:8983/solr/admin/collections?action=BACKUP&name=gettingstarted_backup&collection=gettingstarted&location=/Users/varunthacker/solr-7.1.0 4. Call restore: http://localhost:8983/solr/admin/collections?action=restore&name=gettingstarted_backup&collection=restore_gettingstarted&location=/Users/varunthacker/solr-7.1.0 At step 4, you'll get an error saying {{Solr cloud with available number of nodes:2 is insufficient for restoring a collection with 2 shards, total replicas per shard 1 and maxShardsPerNode -1. Consider increasing maxShardsPerNode value OR number of available nodes.}} The restore test doesn't catch this because in the test we always explicitly specify maxShardsPerNode ( https://github.com/apache/lucene-solr/blob/master/solr/core/src/test/org/apache/solr/cloud/AbstractCloudBackupRestoreTestCase.java#L256 ) When I look at the state.json of gettingstarted it has {code} {"gettingstarted":{ "pullReplicas":"0", "replicationFactor":"2", "router":{"name":"compositeId"}, "maxShardsPerNode":"-1", "autoAddReplicas":"false", "nrtReplicas":"1", "tlogReplicas":"0", "shards":{ ... {code} I think there are two problems here : a> nrtReplicas should be 2 b> maxShardsPerNode should be 2 > nrt replicas is always 1 when not specified > ------------------------------------------- > > Key: SOLR-11676 > URL: https://issues.apache.org/jira/browse/SOLR-11676 > Project: Solr > Issue Type: Bug > Security Level: Public(Default Security Level. Issues are Public) > Reporter: Varun Thacker > Attachments: SOLR-11676.patch > > > I created 1 2 shard X 2 replica collection . Here's the log entry for it > {code} > 2017-11-27 06:43:47.071 INFO (qtp159259014-22) [ ] > o.a.s.h.a.CollectionsHandler Invoked Collection Action :create with params > replicationFactor=2&routerName=compositeId&collection.configName=_default&maxShardsPerNode=2&name=test_recovery&router.name=compositeId&action=CREATE&numShards=2&wt=json&_=1511764995711 > and sendToOCPQueue=true > {code} > And then when I look at the state.json file I see nrtReplicas is set to 1. > Any combination of numShards and replicationFactor without explicitly > specifying the "nrtReplicas" param puts the "nrtReplicas" as 1 instead of > using the replicationFactor value > {code} > {"test_recovery":{ > "pullReplicas":"0", > "replicationFactor":"2", > ... > "nrtReplicas":"1", > "tlogReplicas":"0", > .. > {code} -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org