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https://issues.apache.org/jira/browse/SOLR-4655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13646950#comment-13646950
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Anshum Gupta edited comment on SOLR-4655 at 5/1/13 9:23 PM:
------------------------------------------------------------
I just tested the patch and this seems to work just about fine out of the box
(other than a few minor hiccups while patching) even for the split shards. We
don't seem to be using the hostname in the SplitShard code.
Here's how the clusterstate looks like post a shard split call using
genericNames.
{quote}
{"collection1":{
"shards":{
"shard1":{
"range":"80000000-ffffffff",
"state":"active",
"replicas":{"core_node1":{
"state":"active",
"core":"collection1",
"node_name":"192.168.2.2:8983_solr",
"base_url":"http://192.168.2.2:8983/solr";,
"leader":"true"}}},
"shard2":{
"range":"0-7fffffff",
"state":"active",
"replicas":{"core_node2":{
"state":"active",
"core":"collection1",
"node_name":"192.168.2.2:7574_solr",
"base_url":"http://192.168.2.2:7574/solr";,
"leader":"true"}}},
"shard1_0":{
"state":"active",
"replicas":{"core_node3":{
"state":"active",
"core":"collection1_shard1_0_replica1",
"node_name":"192.168.2.2:8983_solr",
"base_url":"http://192.168.2.2:8983/solr";,
"leader":"true"}}},
"shard1_1":{
"state":"active",
"replicas":{"core_node4":{
"state":"active",
"core":"collection1_shard1_1_replica1",
"node_name":"192.168.2.2:8983_solr",
"base_url":"http://192.168.2.2:8983/solr";,
"leader":"true"}}}},
"router":"compositeId"}}
{quote}
was (Author: anshumg):
I just tested the patch and this seems to work just about fine out of the
box (other than a few minor hiccups while patching) even for the split shards.
We don't seem to be using the hostname in the SplitShard code.
Here's how the clusterstate looks like post a shard split call using
genericNames.
{"collection1":{
"shards":{
"shard1":{
"range":"80000000-ffffffff",
"state":"active",
"replicas":{"core_node1":{
"state":"active",
"core":"collection1",
"node_name":"192.168.2.2:8983_solr",
"base_url":"http://192.168.2.2:8983/solr";,
"leader":"true"}}},
"shard2":{
"range":"0-7fffffff",
"state":"active",
"replicas":{"core_node2":{
"state":"active",
"core":"collection1",
"node_name":"192.168.2.2:7574_solr",
"base_url":"http://192.168.2.2:7574/solr";,
"leader":"true"}}},
"shard1_0":{
"state":"active",
"replicas":{"core_node3":{
"state":"active",
"core":"collection1_shard1_0_replica1",
"node_name":"192.168.2.2:8983_solr",
"base_url":"http://192.168.2.2:8983/solr";,
"leader":"true"}}},
"shard1_1":{
"state":"active",
"replicas":{"core_node4":{
"state":"active",
"core":"collection1_shard1_1_replica1",
"node_name":"192.168.2.2:8983_solr",
"base_url":"http://192.168.2.2:8983/solr";,
"leader":"true"}}}},
"router":"compositeId"}}
> The Overseer should assign node names by default.
> -------------------------------------------------
>
> Key: SOLR-4655
> URL: https://issues.apache.org/jira/browse/SOLR-4655
> Project: Solr
> Issue Type: Improvement
> Components: SolrCloud
> Reporter: Mark Miller
> Assignee: Mark Miller
> Fix For: 4.3, 5.0
>
> Attachments: SOLR-4655.patch, SOLR-4655.patch, SOLR-4655.patch,
> SOLR-4655.patch, SOLR-4655.patch
>
>
> Currently we make a unique node name by using the host address as part of the
> name. This means that if you want a node with a new address to take over, the
> node name is misleading. It's best if you set custom names for each node
> before starting your cluster. This is cumbersome though, and cannot currently
> be done with the collections API. Instead, the overseer could assign a more
> generic name such as nodeN by default. Then you can easily swap in another
> node with no pre planning and no confusion in the name.
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