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https://issues.apache.org/jira/browse/SOLR-14172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17021890#comment-17021890
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Shalin Shekhar Mangar commented on SOLR-14172:
----------------------------------------------
I attached a new patch which adds a failure message in case the collection
creation request is successful.
> Collection metadata remains in zookeeper if too many shards requested
> ---------------------------------------------------------------------
>
> Key: SOLR-14172
> URL: https://issues.apache.org/jira/browse/SOLR-14172
> Project: Solr
> Issue Type: Bug
> Affects Versions: 8.3.1
> Reporter: Andras Salamon
> Assignee: Shalin Shekhar Mangar
> Priority: Major
> Fix For: master (9.0), 8.5
>
> Attachments: SOLR-14172.patch, SOLR-14172.patch
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> When I try to create a collection and request too many shards, collection
> creation fails with the expected error message:
> {noformat}
> $ curl -i --retry 5 -s -L -k --negotiate -u :
> 'http://asalamon-cdpd-rebase831-a-1.vpc.cloudera.com:8983/solr/admin/collections?action=CREATE&name=TooManyShardstest1&numShards=4&collection.configName=zk_init_too&maxShardsPerNode=1'
> HTTP/1.1 400 Bad Request
> Content-Type: application/json;charset=utf-8
> Content-Length: 1562
> {
> "responseHeader":{
> "status":400,
> "QTime":122},
> "Operation create caused
> exception:":"org.apache.solr.common.SolrException:org.apache.solr.common.SolrException:
> Cannot create collection TooManyShardstest1. Value of maxShardsPerNode is 1,
> and the number of nodes currently live or live and part of your createNodeSet
> is 3. This allows a maximum of 3 to be created. Value of numShards is 4,
> value of nrtReplicas is 1, value of tlogReplicas is 0 and value of
> pullReplicas is 0. This requires 4 shards to be created (higher than the
> allowed number)",
> "exception":{
> "msg":"Cannot create collection TooManyShardstest1. Value of
> maxShardsPerNode is 1, and the number of nodes currently live or live and
> part of your createNodeSet is 3. This allows a maximum of 3 to be created.
> Value of numShards is 4, value of nrtReplicas is 1, value of tlogReplicas is
> 0 and value of pullReplicas is 0. This requires 4 shards to be created
> (higher than the allowed number)",
> "rspCode":400},
> "error":{
> "metadata":[
> "error-class","org.apache.solr.common.SolrException",
> "root-error-class","org.apache.solr.common.SolrException"],
> "msg":"Cannot create collection TooManyShardstest1. Value of
> maxShardsPerNode is 1, and the number of nodes currently live or live and
> part of your createNodeSet is 3. This allows a maximum of 3 to be created.
> Value of numShards is 4, value of nrtReplicas is 1, value of tlogReplicas is
> 0 and value of pullReplicas is 0. This requires 4 shards to be created
> (higher than the allowed number)",
> "code":400}}
> {noformat}
> Although the collection creation was not successful if I list the collections
> it shows the new collection:
> {noformat}
> $ solr collection --list
> TooManyShardstest1 (1)
> {noformat}
> Looks like metadata remains in Zookeeper:
> {noformat}
> $ zkcli.sh -zkhost asalamon-cdpd-rebase831-a-1.vpc.cloudera.com:2181/solr
> -cmd ls /collections
> INFO - 2020-01-06 04:54:01.851;
> org.apache.solr.common.cloud.ConnectionManager; Waiting for client to connect
> to ZooKeeper
> INFO - 2020-01-06 04:54:01.880;
> org.apache.solr.common.cloud.ConnectionManager; zkClient has connected
> INFO - 2020-01-06 04:54:01.881;
> org.apache.solr.common.cloud.ConnectionManager; Client is connected to
> ZooKeeper
> /collections (1)
> /collections/TooManyShardstest1 (1)
> DATA:
> {"configName":"zk_init_too"}
> /collections/TooManyShardstest1/state.json (0)
> DATA:
> {"TooManyShardstest1":{
> "pullReplicas":"0",
> "replicationFactor":"1",
> "router":{"name":"compositeId"},
> "maxShardsPerNode":"1",
> "autoAddReplicas":"false",
> "nrtReplicas":"1",
> "tlogReplicas":"0",
> "shards":{
> "shard1":{
> "range":"80000000-bfffffff",
> "state":"active",
> "replicas":{}},
> "shard2":{
> "range":"c0000000-ffffffff",
> "state":"active",
> "replicas":{}},
> "shard3":{
> "range":"0-3fffffff",
> "state":"active",
> "replicas":{}},
> "shard4":{
> "range":"40000000-7fffffff",
> "state":"active",
> "replicas":{}}}}}
> {noformat}
>
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