[jira] [Updated] (LUCENE-3201) improved compound file handling
[ https://issues.apache.org/jira/browse/LUCENE-3201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Robert Muir updated LUCENE-3201: Priority: Minor (was: Blocker) not a blocker, it was pulled from 3.x (and fixed in trunk) improved compound file handling --- Key: LUCENE-3201 URL: https://issues.apache.org/jira/browse/LUCENE-3201 Project: Lucene - Java Issue Type: Improvement Reporter: Robert Muir Assignee: Simon Willnauer Priority: Minor Fix For: 3.5, 4.0 Attachments: LUCENE-3201.patch, LUCENE-3201.patch Currently CompoundFileReader could use some improvements, i see the following problems * its CSIndexInput extends bufferedindexinput, which is stupid for directories like mmap. * it seeks on every readInternal * its not possible for a directory to override or improve the handling of compound files. for example: it seems if you were impl'ing this thing from scratch, you would just wrap the II directly (not extend BufferedIndexInput, and add compound file offset X to seek() calls, and override length(). But of course, then you couldnt throw read past EOF always when you should, as a user could read into the next file and be left unaware. however, some directories could handle this better. for example MMapDirectory could return an indexinput that simply mmaps the 'slice' of the CFS file. its underlying bytebuffer etc naturally does bounds checks already etc, so it wouldnt need to be buffered, not even needing to add any offsets to seek(), as its position would just work. So I think we should try to refactor this so that a Directory can customize how compound files are handled, the simplest case for the least code change would be to add this to Directory.java: {code} public Directory openCompoundInput(String filename) { return new CompoundFileReader(this, filename); } {code} Because most code depends upon the fact compound files are implemented as a Directory and transparent. at least then a subclass could override... but the 'recursion' is a little ugly... we could still label it expert+internal+experimental or whatever. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira - To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
[jira] [Updated] (LUCENE-3201) improved compound file handling
[ https://issues.apache.org/jira/browse/LUCENE-3201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Michael McCandless updated LUCENE-3201: --- Fix Version/s: (was: 3.4) 3.5 improved compound file handling --- Key: LUCENE-3201 URL: https://issues.apache.org/jira/browse/LUCENE-3201 Project: Lucene - Java Issue Type: Improvement Reporter: Robert Muir Assignee: Simon Willnauer Priority: Blocker Fix For: 3.5, 4.0 Attachments: LUCENE-3201.patch, LUCENE-3201.patch Currently CompoundFileReader could use some improvements, i see the following problems * its CSIndexInput extends bufferedindexinput, which is stupid for directories like mmap. * it seeks on every readInternal * its not possible for a directory to override or improve the handling of compound files. for example: it seems if you were impl'ing this thing from scratch, you would just wrap the II directly (not extend BufferedIndexInput, and add compound file offset X to seek() calls, and override length(). But of course, then you couldnt throw read past EOF always when you should, as a user could read into the next file and be left unaware. however, some directories could handle this better. for example MMapDirectory could return an indexinput that simply mmaps the 'slice' of the CFS file. its underlying bytebuffer etc naturally does bounds checks already etc, so it wouldnt need to be buffered, not even needing to add any offsets to seek(), as its position would just work. So I think we should try to refactor this so that a Directory can customize how compound files are handled, the simplest case for the least code change would be to add this to Directory.java: {code} public Directory openCompoundInput(String filename) { return new CompoundFileReader(this, filename); } {code} Because most code depends upon the fact compound files are implemented as a Directory and transparent. at least then a subclass could override... but the 'recursion' is a little ugly... we could still label it expert+internal+experimental or whatever. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira - To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
[jira] [Updated] (LUCENE-3201) improved compound file handling
[ https://issues.apache.org/jira/browse/LUCENE-3201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Robert Muir updated LUCENE-3201: Fix Version/s: (was: 3.3) 3.4 improved compound file handling --- Key: LUCENE-3201 URL: https://issues.apache.org/jira/browse/LUCENE-3201 Project: Lucene - Java Issue Type: Improvement Reporter: Robert Muir Assignee: Simon Willnauer Fix For: 3.4, 4.0 Attachments: LUCENE-3201.patch, LUCENE-3201.patch Currently CompoundFileReader could use some improvements, i see the following problems * its CSIndexInput extends bufferedindexinput, which is stupid for directories like mmap. * it seeks on every readInternal * its not possible for a directory to override or improve the handling of compound files. for example: it seems if you were impl'ing this thing from scratch, you would just wrap the II directly (not extend BufferedIndexInput, and add compound file offset X to seek() calls, and override length(). But of course, then you couldnt throw read past EOF always when you should, as a user could read into the next file and be left unaware. however, some directories could handle this better. for example MMapDirectory could return an indexinput that simply mmaps the 'slice' of the CFS file. its underlying bytebuffer etc naturally does bounds checks already etc, so it wouldnt need to be buffered, not even needing to add any offsets to seek(), as its position would just work. So I think we should try to refactor this so that a Directory can customize how compound files are handled, the simplest case for the least code change would be to add this to Directory.java: {code} public Directory openCompoundInput(String filename) { return new CompoundFileReader(this, filename); } {code} Because most code depends upon the fact compound files are implemented as a Directory and transparent. at least then a subclass could override... but the 'recursion' is a little ugly... we could still label it expert+internal+experimental or whatever. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira - To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
[jira] [Updated] (LUCENE-3201) improved compound file handling
[ https://issues.apache.org/jira/browse/LUCENE-3201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Robert Muir updated LUCENE-3201: Attachment: LUCENE-3201.patch Initial patch for review. In this patch I only cut over MMapDirectory to using a special CompoundFileDirectory, all others use the default as before (but i cleaned up some things about it). Pretty sure i can easily improve SimpleFS and NIOFS, i'll take a look at that now, but I wanted to get this up for review. improved compound file handling --- Key: LUCENE-3201 URL: https://issues.apache.org/jira/browse/LUCENE-3201 Project: Lucene - Java Issue Type: Improvement Reporter: Robert Muir Attachments: LUCENE-3201.patch Currently CompoundFileReader could use some improvements, i see the following problems * its CSIndexInput extends bufferedindexinput, which is stupid for directories like mmap. * it seeks on every readInternal * its not possible for a directory to override or improve the handling of compound files. for example: it seems if you were impl'ing this thing from scratch, you would just wrap the II directly (not extend BufferedIndexInput, and add compound file offset X to seek() calls, and override length(). But of course, then you couldnt throw read past EOF always when you should, as a user could read into the next file and be left unaware. however, some directories could handle this better. for example MMapDirectory could return an indexinput that simply mmaps the 'slice' of the CFS file. its underlying bytebuffer etc naturally does bounds checks already etc, so it wouldnt need to be buffered, not even needing to add any offsets to seek(), as its position would just work. So I think we should try to refactor this so that a Directory can customize how compound files are handled, the simplest case for the least code change would be to add this to Directory.java: {code} public Directory openCompoundInput(String filename) { return new CompoundFileReader(this, filename); } {code} Because most code depends upon the fact compound files are implemented as a Directory and transparent. at least then a subclass could override... but the 'recursion' is a little ugly... we could still label it expert+internal+experimental or whatever. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira - To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
[jira] [Updated] (LUCENE-3201) improved compound file handling
[ https://issues.apache.org/jira/browse/LUCENE-3201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Robert Muir updated LUCENE-3201: Fix Version/s: 4.0 3.3 setting 3.3/4.0 as fix version, as the changes are backwards compatible (compoundfilereader is pkg-private still in 3.x) improved compound file handling --- Key: LUCENE-3201 URL: https://issues.apache.org/jira/browse/LUCENE-3201 Project: Lucene - Java Issue Type: Improvement Reporter: Robert Muir Fix For: 3.3, 4.0 Attachments: LUCENE-3201.patch Currently CompoundFileReader could use some improvements, i see the following problems * its CSIndexInput extends bufferedindexinput, which is stupid for directories like mmap. * it seeks on every readInternal * its not possible for a directory to override or improve the handling of compound files. for example: it seems if you were impl'ing this thing from scratch, you would just wrap the II directly (not extend BufferedIndexInput, and add compound file offset X to seek() calls, and override length(). But of course, then you couldnt throw read past EOF always when you should, as a user could read into the next file and be left unaware. however, some directories could handle this better. for example MMapDirectory could return an indexinput that simply mmaps the 'slice' of the CFS file. its underlying bytebuffer etc naturally does bounds checks already etc, so it wouldnt need to be buffered, not even needing to add any offsets to seek(), as its position would just work. So I think we should try to refactor this so that a Directory can customize how compound files are handled, the simplest case for the least code change would be to add this to Directory.java: {code} public Directory openCompoundInput(String filename) { return new CompoundFileReader(this, filename); } {code} Because most code depends upon the fact compound files are implemented as a Directory and transparent. at least then a subclass could override... but the 'recursion' is a little ugly... we could still label it expert+internal+experimental or whatever. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira - To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
[jira] [Updated] (LUCENE-3201) improved compound file handling
[ https://issues.apache.org/jira/browse/LUCENE-3201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Robert Muir updated LUCENE-3201: Attachment: LUCENE-3201.patch here is an updated patch, including impls for SimpleFS and NIOFS, fixing the FileSwitchDirectory thing uwe mentioned, and also mockdirectorywrapper and NRTCachingDirectory. all the tests pass with Simple/NIO/MMap but we need to benchmark. haven't had good luck today with luceneutil improved compound file handling --- Key: LUCENE-3201 URL: https://issues.apache.org/jira/browse/LUCENE-3201 Project: Lucene - Java Issue Type: Improvement Reporter: Robert Muir Fix For: 3.3, 4.0 Attachments: LUCENE-3201.patch, LUCENE-3201.patch Currently CompoundFileReader could use some improvements, i see the following problems * its CSIndexInput extends bufferedindexinput, which is stupid for directories like mmap. * it seeks on every readInternal * its not possible for a directory to override or improve the handling of compound files. for example: it seems if you were impl'ing this thing from scratch, you would just wrap the II directly (not extend BufferedIndexInput, and add compound file offset X to seek() calls, and override length(). But of course, then you couldnt throw read past EOF always when you should, as a user could read into the next file and be left unaware. however, some directories could handle this better. for example MMapDirectory could return an indexinput that simply mmaps the 'slice' of the CFS file. its underlying bytebuffer etc naturally does bounds checks already etc, so it wouldnt need to be buffered, not even needing to add any offsets to seek(), as its position would just work. So I think we should try to refactor this so that a Directory can customize how compound files are handled, the simplest case for the least code change would be to add this to Directory.java: {code} public Directory openCompoundInput(String filename) { return new CompoundFileReader(this, filename); } {code} Because most code depends upon the fact compound files are implemented as a Directory and transparent. at least then a subclass could override... but the 'recursion' is a little ugly... we could still label it expert+internal+experimental or whatever. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira - To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org