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Posted to solr-user@lucene.apache.org by Shashank Pedamallu <sp...@vmware.com> on 2017/05/19 00:40:53 UTC
Data Dir from a core with init-failure
Hi all,
Question:
I would like to know what is the reliable way to fetch dataDir (and instanceDir) of a core that has an init failure.
Trials made:
I used the admin api to get status:
http://localhost:8983/solr/admin/cores?action=STATUS&core=<core-name>&wt=json&indent=true<http://localhost:8983/solr/admin/cores?action=STATUS&core=spedamallu1-core-1&wt=json&indent=true>
But I observed that, it does not always give me the information.
Steps followed:
Step 1: On a healthy core, remove some index file and restart Solr
Step 2: Invoke status api. Response was:
{
"responseHeader":{
"status":0,
"QTime":5},
"initFailures":{"<core-name>":"org.apache.solr.common.SolrException:org.apache.solr.common.SolrException: Error opening new searcher"},
"status":{
"<core-name>":{
"name":"<core-name>",
"instanceDir":"<InstanceDirPath>",
"dataDir":"<DataDirPath>",
"config":"solrconfig.xml",
"schema":"schema.xml",
"isLoaded":"false"}}}
Step 3: Replace the removed file and restart Solr. Everything works as it is.
Step 4: Unload the core (without deleting indexDir or dataDir). api: http://localhost:8983/solr/admin/cores?action=UNLOAD&core=<core-name>
Step 5: Create the core (with same indexDir and dataDir). api: http://localhost:8983/solr/admin/cores?action=CREATE&name=<core-name>&instanceDir=path/to/dir&config=config_file_name.xml&dataDir=data
Step 6: Repeat Step 1. I.e., remove some index file and restart Solr
Step 7: Repeat Step 2. I.e, Invoke status api. Response was:
{
"responseHeader":{
"status":0,
"QTime":0},
"initFailures":{"<core-name>":"org.apache.solr.common.SolrException:org.apache.solr.common.SolrException: Error opening new searcher"},
"status":{
"<core-name>":{}}}
Like you see, the response of status api from Step 7 is different from Step 2. Is there a reliable way to get dataDir of a core in the presence of init-failure?
Thanks,
Shashank Pedamallu
Re: Data Dir from a core with init-failure
Posted by davidvartanian <da...@posteo.de>.
Another great question is: How to clean the mess *WITHOUT* restarting the
server.
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