How can I migrate SOLR files (indexed) from one server to another?
Just copy your data directory under the path, where you configured your solr-Home wherever you want. See this, because it is a Lucene index. Or you can use the solr backup tool.
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Is there any way to replicate replicate file index data which is aws cloudsearch to apache solr hosted on ec2 real time.
Not really- in order to make sure that all of your original documents are indexed correctly you have to reindex them into Solr in their original form.
I can create / restore Solr backups from Solr via CollectionAdminRequest.Backup and CollectionAdminRequest.Restore.
Looks like it's possible via http api, e.g.:
http://localhost:8983/solr/gettingstarted/replication?command=details&wt=xml
But is it possible to list all backups and drop one by name from SolrJ?
I'm using Solr 7.5.
From what I found, it's not possible to do it from SolrJ directly.
So I've ended up working with HDFS directly. I've configured Solr to use HDFS as backup storage. And from my code I'm accessing it via HDFS client - I can list and remove backups from it.
I am using ArangoDB community edition, I have upgraded the ArangoDB and ArangoDB client softwares, hence I can see multiple installations of ArangoDB on my machine.
Well, depending on my activity I would like to uninstall unused installations.
To have a back-up I would like to save the actual database files.
I would like to save these different database files. viz : Db1 , Db2 , Db3
Just in case I mess up installations or something.
There is no option to download the complete download of database. We can only export Collections as JSON as of now
I would like to know what's the typical location where the database
files are stored.
I did complete check of below locations and I dint find database storage files.
C:\Program Files\ArangoDB3 3.X.X\etc\arangodb3
C:\Users\Prateek\AppData\Local\ArangoDB3-client 3.X.X
and other locations by Search function.
Having multiple installations of ArangDB after upgrading sounds like a bug. Would be nice if you would open a github issue for that.
The recommended way of making backups of your data is by using arangodump and then arangorestore to restore the data.
The actual default location where these database files stored is
C:\ProgramData\ArangoDB\databases
ProgramData is usually hidden under Windows.
Each collection has its own folder and has 2 files;
parameter.json
journal-NNNN.db
We can also see other ArangoDB files under C:\ProgramData\ArangoDB such as
journals
rocksdb
Even though I have had multiple installation showing up due to upgrades these database files are common. I verified this by switching to different server by running arangod.exe in Administrator mode and then calling respective arangodump by switching to that location.
Note : to get the version arangodump is running for we can check from arangodump -version true If we dont run particular aranghodump(exe) this is fetched from environment path variable.
I've installed solr and zookeeper in two different machines, and have edited zoo.cfg file as instructed on solr wiki, zookeeper was launched and connected successfully, but when i try to ingest data on one machine, it does not reflect on other machine, indexed file should go in zookeeper data folder, but it is getting stored in solr data folder.
Can anyone help over this, or give me steps from scratch on how to configure it and check if it is working.
you should have zookeeper ensemble setup, as you mentioned you have it
you should setup solr cluster using multiple machines.
once solrcloud setup is done you should start solr with zookeeper ensebmle using param -z (ex: bin/solr start -z zookeepermachineIP:2181)
Everything is well explained in detail Here. also refer Wiki to setup a ZooKeeper Ensemble
right after the solrCloud setup with zookeeper, I was trying to copy my collection from stand-alone solr,but DIH was not reflecting,
Then I copied an example DIH named db from solr/example dir. and made changes to it according to my connection and query, and pasted it in configsets dir and placed necessary jars in lib. Also, node name has to be same on both the machines. It's working fine now.
I am new user to solr,I want to access and search the MYSQL database tables in java applications via solr.i am able to index my table in solr admin interface. Can anyone tell me how to connect and access MYSQL tables in java application so that i can search data fastly ? I was not able to understand tutorials whatever i found.
Solr provides client libraries in java, ruby and other languagues to help you connect to Solr and query it.
Check for the Java library Solrj to connect and query Solr.
If you are using Frameworks with your projects you might want to check for Spring data as well which will help you seamlessly query and transform Solr response.
So you will need to set up an instance of a Solr Server, SOlr will store and indexes from your database using the DataImportHandler.
http://amac4.blogspot.co.uk/2013/08/configuring-solr-4-data-import-handler.html
Solr creates indexes using Lucene, so you have two options, you can use classes from the Lucene jar file or SolrJ to search your indexes.
OR
You can query Solr by sending http requests. I set-up a Java Web Service so you can snatch some of my code if you need to.
http://amac4.blogspot.co.uk/2013/07/restful-java-web-service-for-solr.html