I have an OpenSearch domain with 40 data nodes. There is currently one index in the whole cluster. We are a delete-heavy cluster where we are constantly deleting HTML documents and adding new ones. We currently have about 200,000,000 searchable documents and 160,000,000 deleted documents. Would reindexing be a good idea? Also, are there tools you can use to estimate the time it would take to reindex a domain?
How often should you reindex an elasticsearch cluster?
116 views Asked by Sean At
1
There are 1 answers
Related Questions in ELASTICSEARCH
- SQL server not returning all rows
- Big data with spatial queries/indexing
- Conditional null constraint on Null
- SQL Query - Order by String (which contains number and chars)
- Optimising a slow running SQL Server Stored procedure ordered by calculated fields to return a closest match
- Dynamics CRM Publishing Customizations - Multi Developers
- Is there anyway to set the relationship of many tables from Model?
- Implementation of Rank and Dense Rank in MySQL
- ORM Code First versa Database First in Production
- MVC : Insert data to two tables
Related Questions in OPENSEARCH
- SQL server not returning all rows
- Big data with spatial queries/indexing
- Conditional null constraint on Null
- SQL Query - Order by String (which contains number and chars)
- Optimising a slow running SQL Server Stored procedure ordered by calculated fields to return a closest match
- Dynamics CRM Publishing Customizations - Multi Developers
- Is there anyway to set the relationship of many tables from Model?
- Implementation of Rank and Dense Rank in MySQL
- ORM Code First versa Database First in Production
- MVC : Insert data to two tables
Related Questions in AMAZON-OPENSEARCH
- SQL server not returning all rows
- Big data with spatial queries/indexing
- Conditional null constraint on Null
- SQL Query - Order by String (which contains number and chars)
- Optimising a slow running SQL Server Stored procedure ordered by calculated fields to return a closest match
- Dynamics CRM Publishing Customizations - Multi Developers
- Is there anyway to set the relationship of many tables from Model?
- Implementation of Rank and Dense Rank in MySQL
- ORM Code First versa Database First in Production
- MVC : Insert data to two tables
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Reindex is not the only option. If you can pause the documents ingestion for a few hours (or maybe days), you can run:
split on the index. If you split by a factor 6, you will have no more segments > 5GB and Elasticsearch will merge segments and at the same time free disk space of deleted documents. But this option requires a lot of free disk space. Please read carefully the documentation.
forcemerge on the index. I think you will have to specify a value for
max_num_segmentsand / oronly_expunge_deletes. Warning: Force merge operation cannot be cancelled and can takes hours on such big shards.Ideally for the future, you should try to avoid having only one big index because they are harder to operate. Usually, it's possible to distribute documents in multiple indexes by a switch (on first letters of HTML domain name for example).