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Posted to dev@lucene.apache.org by "Bram Van Dam (JIRA)" <ji...@apache.org> on 2019/02/14 10:19:00 UTC
[jira] [Created] (SOLR-13247) Incorrect shard placement during
Collection creation
Bram Van Dam created SOLR-13247:
-----------------------------------
Summary: Incorrect shard placement during Collection creation
Key: SOLR-13247
URL: https://issues.apache.org/jira/browse/SOLR-13247
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud
Affects Versions: 7.7, 7.6
Reporter: Bram Van Dam
TL;DR; createNodeSet & shards combination is not being respected.
I'm attempting to create a collection with multiple shards, but
apparently the value of createNodeSet is not being respected and shards
are being assigned to nodes seemingly at random.
createNodeSet.shuffle is set to false, so that's not the cause.
Furthermore, sometimes not all nodes in the request are used.
Here's the create request, cleaned up for legibility. Note that the node names
are IP addresses but I've removed the first 3 octets for legibility.
admin/collections
?action=CREATE
&name=collectionName
&router.name=implicit
&shards=collectionName1,collectionName2,collectionName3,collectionName4,collectionName5,collectionName6
&maxShardsPerNode=1024
&collection.configName=some_config
&createNodeSet=171:8180_solr,172:8180_solr,173:8180_solr,177:8180_solr,179:8180_solr,179:8180_solr
&createNodeSet.shuffle=false
&waitForFinalState=true
Note that I'm creating a collection with 6 shards across 5 nodes.
Requested:
collectionName1: 171:8180_solr
collectionName2: 172:8180_solr
collectionName3: 173:8180_solr
collectionName4: 177:8180_solr
collectionName5: 179:8180_solr
collectionName6: 179:8180_solr
Actual:
collectionName1: 177:8180_solr
collectionName2: 172:8180_solr
collectionName3: 179:8180_solr
collectionName4: 173:8180_solr
collectionName5: 171:8180_solr
collectionName6: 171:8180_solr
Not a single shard ends up on the requested node.
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