thanks ! the copy function works
but i have troubles..
I used a scheduled task to backup the index.
for the test , a backup is made all the 15 secondes.
and sometime , in the backup process,
when i clean a directory with :
Directory target=FSDirectory.getDirectory(selected_backup_dir, true);
i have a Exception :
java.io.IOException: couldn't delete segments
at org.apache.lucene.store.FSDirectory.create(FSDirectory.java:166)
at org.apache.lucene.store.FSDirectory.<init>(FSDirectory.java:151)
at org.apache.lucene.store.FSDirectory.getDirectory(FSDirectory.java:132)
at
lab.crip5.ECR.cocoon.components.IndexBackupJob.backup(IndexBackupJob.java:13
5)
the exception happend sometimes
my backup function is simple :
private void backup (String index_to_backup) throws Exception {
getLogger().info("begin backup index "+index_to_backup+" at "+new
Date()+"...");
// get the directory of the index
Directory
source=index_manager.getIndex(index_to_backup).getDirectory();
// select target backup directory
File target_backup_dir=select_backup(index_to_backup);
// clean the old index
Directory target=FSDirectory.getDirectory(new_backup_dir, true);
// backup
copy(source, target);
target.close();
getLogger().info("end backup index "+index_to_backup+" at "+new
Date()+"...ok");
}
----- Original Message -----
From: "Nicolas Maisonneuve" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, January 15, 2004 3:21 PM
Subject: Fw: Betreff: Copy Directory to Directory function ( backup)
>
> ----- Original Message -----
> From: "Nick Smith" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, January 15, 2004 2:58 PM
> Subject: Betreff: Copy Directory to Directory function ( backup)
>
>
> > Hi Nico,
> > This is the method that I use for backing up my indices...
> >
> > Good Luck!
> >
> > Nick
> >
> > /**
> > * Copy contents of <code>dir</code>, erasing current contents.
> > *
> > * This can be used to write a memory-based index to disk.
> > *
> > * @param dir a <code>Directory</code> value
> > * @exception IOException if an error occurs
> > */
> > public void copyDir(Directory dir) throws IOException {
> > // remove current contents of directory
> > create();
> >
> > final String[] ar = dir.list();
> > for (int i = 0; i < ar.length; i++)
> > {
> > // make place on disk
> > OutputStream os = createFile(ar[i]);
> > // read current file
> > InputStream is = dir.openFile(ar[i]);
> >
> > final int MAX_CHUNK_SIZE = 131072;
> > byte[] buf = new byte[MAX_CHUNK_SIZE];
> > int remainder = (int)is.length();
> > while (remainder > 0) {
> > int chunklen = (remainder > MAX_CHUNK_SIZE ? MAX_CHUNK_SIZE :
> remainde!
> > is.readBytes(buf, 0, chunklen);
> > os.writeBytes(buf, chunklen);
> > remainder -= chunklen;
> > }
> >
> > // graceful cleanup
> > is.close();
> > os.close();
> > }
> > }
> >
> >
> >
>
>
>
>
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