How do you search an amazon s3 bucket

Question

I have a bucket with thousands of files in it  How can I search the bucket  Is there a tool you can recommend

User · Answer

I did something as below to find patterns in my bucket

def getListOfPrefixesFromS3(dataPath: String, prefix: String, delimiter: String, batchSize: Integer): List[String] = {
    var s3Client = new AmazonS3Client()
    var listObjectsRequest = new ListObjectsRequest().withBucketName(dataPath).withMaxKeys(batchSize).withPrefix(prefix).withDelimiter(delimiter)
    var objectListing: ObjectListing = null
    var res: List[String] = List()

    do {
      objectListing = s3Client.listObjects(listObjectsRequest)
      res = res ++ objectListing.getCommonPrefixes
      listObjectsRequest.setMarker(objectListing.getNextMarker)
    } while (objectListing.isTruncated)
    res
  }

For larger buckets this consumes too much of time since all the object summaries are returned by the Aws and not only the ones that match the prefix and the delimiter. I am looking for ways to improve the performance and so far i've only found that i should name the keys and organise them in buckets properly.

User · Answer

Use Amazon Athena to query S3 bucket  Also  load data to Amazon Elastic search  Hope this helps

User · Answer

Just a note to add on here   it s now 3 years later  yet this post is top in Google when you type in  How to search an S3 Bucket      Perhaps you re looking for something more complex  but if you landed here trying to figure out how to simply find an object  file  by it s title  it s crazy simple   open the bucket  select  none  on the right hand side  and start typing in the file name     http   docs aws amazon com AmazonS3 latest UG ListingObjectsinaBucket html

User · Answer

S3 doesn t have a native  search this bucket  since the actual content is unknown - also  since S3 is key value based there is no native way to access many nodes at once ala more traditional datastores that offer a  SELECT   FROM     WHERE       in a SQL model    What you will need to do is perform ListBucket to get a listing of objects in the bucket and then iterate over every item performing a custom operation that you implement - which is your searching

User · Answer

Fast forward to 2020  and using aws-okta as our 2fa  the following command  while slow as hell to iterate through all of the objects and folders in this particular bucket   270 000  worked fine   aws-okta exec dev -- aws s3 ls my-cool-bucket --recursive   grep needle-in-haystax txt

User · Answer

I faced the same problem  Searching in S3 should be much more easier than the current situation  That s why  I implemented this open source tool for searching in S3   SSEARCH is full open source S3 search tool  It has been implemented always keeping mind that the performance is the critical factor and according to the benchmarks it searches the bucket which contains  1000 files within seconds   Installation is simple  You only download docker-compose file and running it with  docker-compose up   SSEARCH will be started and you can search anything in any bucket you have

User · Answer

Here s a short and ugly way to do search file names using the AWS CLI   aws s3 ls s3   your-bucket --recursive   grep your-search   cut -c 32-

User · Answer

I tried in the following way   aws s3 ls s3   Bucket1 folder1 2019  --recursive  grep filename csv   This outputs the actual path where the file exists  2019-04-05 01 18 35     111111 folder1 2019 03 20 filename csv

User · Answer

Take a look at this documentation  http   docs aws amazon com AWSSDKforPHP latest index html m amazons3 get object list  You can use a Perl-Compatible Regular Expression  PCRE  to filter the names

User · Answer

Another option is to mirror the S3 bucket on your web server and traverse locally  The trick is that the local files are empty and only used as a skeleton   Alternatively  the local files could hold useful meta data that you normally would need to get from S3  e g  filesize  mimetype  author  timestamp  uuid    When you provide a URL to download the file  search locally and but provide a link to the S3 address   Local file traversing is easy and this approach for S3 management is language agnostic   Local file traversing also avoids maintaining and querying a database of files or delays making a series of remote API calls to authenticate and get the bucket contents   You could allow users to upload files directly to your server via FTP or HTTP and then transfer a batch of new and updated files to Amazon at off peak times by just recursing over the directories for files with any size   On the completion of a file transfer to Amazon  replace the web server file with an empty one of the same name   If a local file has any filesize then serve it directly because its awaiting batch transfer

User · Answer

Not a technical answer  but I have built an application which allows for wildcard search  https   bucketsearch net   It will asynchronously index your bucket and then allow you to search the results   It s free to use  donationware

User · Answer

Given that you are in AWS   I would think you would want to use their CloudSearch tools   Put the data you want to search in their service   have it point to the S3 keys   http   aws amazon com cloudsearch

User · Answer

There are multiple options  none being simple  one shot  full text solution    Key name pattern search  Searching for keys starting with some string- if you design key names carefully  then you may have rather quick solution  Search metadata attached to keys  when posting a file to AWS S3  you may process the content  extract some meta information and attach this meta information in form of custom headers into the key  This allows you to fetch key names and headers without need to fetch complete content  The search has to be done sequentialy  there is no  sql like  search option for this  With large files this could save a lot of network traffic and time  Store metadata on SimpleDB  as previous point  but with storing the metadata on SimpleDB  Here you have sql like select statements  In case of large data sets you may hit SimpleDB limits  which can be overcome  partition metadata across multiple SimpleDB domains   but if you go really far  you may need to use another metedata type of database  Sequential full text search of the content - processing all the keys one by one  Very slow  if you have too many keys to process    We are storing 1440 versions of a file a day  one per minute  for couple of years  using versioned bucket  it is easily possible  But getting some older version takes time  as one has to sequentially go version by version  Sometime I use simple CSV index with records  showing publication time plus version id  having this  I could jump to older version rather quickly   As you see  AWS S3 is not on it s own designed for full text searches  it is simple storage service

User · Answer

Search by Prefix in S3 Console  directly in the AWS Console bucket view     Copy wanted files using s3-dist-cp  When you have thousands or millions of files another way to get the wanted files is to copy them to another location using distributed copy  You run this on EMR in a Hadoop Job  The cool thing about AWS is that they provide their custom S3 version s3-dist-cp  It allows you to group wanted files using a regular expression in the groupBy field  You can use this for example in a custom step on EMR                   ActionOnFailure    CONTINUE            Args                  s3-dist-cp                --s3Endpoint s3 amazonaws com                --src s3   mybucket                 --dest s3   mytarget-bucket                 --groupBy MY PATTERN                --targetSize 1000                      Jar    command-runner jar            Name    S3DistCp Step Aggregate Results            Type    CUSTOM JAR

User · Answer

Try this command   aws s3api list-objects --bucket your-bucket --prefix sub-dir-path --output text --query  Contents    Key  Key     Then you can pipe this into a grep to get specific file types to do whatever you want with them

User · Answer

This is little bit old thread - but maybe help someone who still search - I m the one who search for that a year   Solution may be  AWS Athena  where you can search over data like this   SELECT user name FROM S3Object WHERE cast age as int   gt  20    https   aws amazon com blogs developer introducing-support-for-amazon-s3-select-in-the-aws-sdk-for-javascript   Currently pricing is  5 for 1TB data - so for example  if your query search over one 1TB file 3times your cost is  15 - but for example if there is only 1column in  converted columnar format  what you want read  you ll pay 1 3 of price means  1 67 TB

User · Answer

If you re on Windows and have no time finding a nice grep alternative  a quick and dirty way would be   aws s3 ls s3   your-bucket folder  --recursive  gt  myfile txt  and then do a quick-search in myfile txt  The  folder  bit is optional   P S  if you don t have AWS CLI installed - here s a one liner using Chocolatey package manager  choco install awscli  P P S  If you don t have the Chocolatey package manager - get it  Your life on Windows will get 10x better   I m not affiliated with Chocolatey in any way  but hey  it s a must-have  really

User · Answer

The way I did it is  I have thousands of files in s3  I saw the properties panel of one file in the list  You can see the URI of that file and I copy pasted that to the browser - it was a text file and it rendered nicely  Now I replaced the uuid in the url with the uuid that I had at hand and boom there the file is   I wish AWS had a better way to search a file  but this worked for me

User · Answer

AWS released a new Service to query S3 buckets with SQL  Amazon Athena https   aws amazon com athena

User · Answer

There are  at least  two different use cases which could be described as  search the bucket     Search for something inside every object stored at the bucket  this assumes a common format for all the objects in that bucket  say  text files   etc etc  For something like this  you re forced to do what Cody Caughlan just answered  The AWS S3 docs has example code showing how to do this with the AWS SDK for Java  Listing Keys Using the AWS SDK for Java  there you ll also find PHP and C  examples   List item Search for something in the object keys contained in that bucket  S3 does have partial support for this  in the form of allowing prefix exact matches   collapsing matches after a delimiter  This is explained in more detail at the AWS S3 Developer Guide  This allows  for example  to implement  folders  through using as  object keys something like folder subfolder file txt If you follow this convention  most of the S3 GUIs  such as the AWS Console  will show you a folder view of your bucket

User · Answer

Status 2018-07  Amazon do have native sql like search for csv and json files   https   aws amazon com blogs developer introducing-support-for-amazon-s3-select-in-the-aws-sdk-for-javascript

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