[jira] [Updated] (JCLOUDS-1488) Filesystem list call with prefix is slow in large containers

["Lari Sinisalo (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JCLOUDS-1488?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lari Sinisalo updated JCLOUDS-1488:
-----------------------------------
    Attachment: JCLOUDS1488.java

> Filesystem list call with prefix is slow in large containers
> ------------------------------------------------------------
>
>                 Key: JCLOUDS-1488
>                 URL: https://issues.apache.org/jira/browse/JCLOUDS-1488
>             Project: jclouds
>          Issue Type: Bug
>          Components: jclouds-blobstore
>    Affects Versions: 2.1.1
>         Environment: Java version: java version "1.8.0_131"
> Operating system: Fedora 27 x86_64
>            Reporter: Lari Sinisalo
>            Priority: Major
>              Labels: filesystem
>         Attachments: JCLOUDS1488.java
>
>
> When the filesystem blobstore is used, running the following code takes very long if there are a lot of files in the container:
> {code}
>     ListContainerOptions options = new ListContainerOptions();
>     options.prefix("test-container-subdirectory/");
>     Set<? extends StorageMetadata> results =
>       blobStore.list("test-container",options);
> {code}
> See the attached Java source file for the full code.
> On my system, running the attached Java code takes over 10 seconds to list a single file if there are 500,000 files in the container outside that prefix.
> Output from the attached code:
> {code}
> Number of blobs listed: 1
> First listed blob: test-container-subdirectory/file-to-list
> Time it took to list the blobs: 13256 ms
> {code}
> A more general version of this problem was reported previously in JCLOUDS-1371.



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