[jira] [Commented] (SSHD-1067) Performance tuning parameters for Apache mina SSHD 2.4

["Lyor Goldstein (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SSHD-1067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17186655#comment-17186655 ] 

Lyor Goldstein commented on SSHD-1067:
--------------------------------------

There are major improvements to SFTP - but you need to switch to version 2.5.1. See the discussion in  SSHD-1049 and also the code in [SftpPerformanceTest|https://github.com/apache/mina-sshd/blob/master/sshd-sftp/src/test/java/org/apache/sshd/sftp/client/SftpPerformanceTest.java] and [SftpTransferTest|https://github.com/apache/mina-sshd/blob/master/sshd-sftp/src/test/java/org/apache/sshd/sftp/client/SftpTransferTest.java] for examples how to use the improvements. Basically, the idea is to create an {{SftpFileSystem}} and then use {{Files.copy(...)}}

{code:java}
try (ClientSession session = createClientSession();
       SftpFileSystem fs = SftpClientFactory.instance().createSftpFileSystem(session)) {
    Path remoteFile = fs.getPath("/some/remote/path");
    Path localFile = Paths.get("/some/local/path");

    Files.copy(remoteFile, localFile);  // download
    Files.copy(localFile, remoteFile); // upload
}
{code}

Another option is to use {{SftpRemotePathChannel#transferTo}} as shown in [SftpRemotePathChannelTest|https://github.com/apache/mina-sshd/blob/master/sshd-sftp/src/test/java/org/apache/sshd/sftp/client/impl/SftpRemotePathChannelTest.java]

> Performance tuning parameters for Apache mina SSHD 2.4
> ------------------------------------------------------
>
>                 Key: SSHD-1067
>                 URL: https://issues.apache.org/jira/browse/SSHD-1067
>             Project: MINA SSHD
>          Issue Type: Question
>            Reporter: lakshmi Priya
>            Priority: Major
>
> We are using SSHD Mina 2.4 version, we are noticing that large file upload/downloads are taking a very long time as compared to other libraries. Are there any parameters that can be used to tune the performance for SFTP server and client. Please suggest.



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