I'm using Apache NiFi version 1.16.3 and trying to extract .csv from Excel file (.xlsx) with ConvertExcelToCSVProcessor. Size of the .xlsx is 17 MB, but I can't share it here.
I receive an error:
org.apache.nifi.processors.poi.ConvertExcelToCSVProcessor.error
Tried to allocate an array of length 101,695,141, but the maximum length for this record type is 100,000,000. If the file is not corrupt or large, please open an issue on bugzilla to request increasing the maximum allowable size for this record type. As a temporary workaround, consider setting a higher override value with IOUtils.setByteArrayMaxOverride()
What can I do with it? It says
consider setting a higher override value with IOUtils.setByteArrayMaxOverride()
as temprorary workaround, but where can I find this option? Seems like I should write custom processor with this option or what?
Related
I recently learned about metadata and how its information about the data itself.
Seeing how file size includes among those statistics would it be possible to change the file size to something absurd and unreasonable like 1000 petabytes; in this case, you can what would the effects be on a computer and how would it affect a windows 11 computer?
Not all metadata is directly editable. Some of it are simply properties of the file. You can't just set the file size to an arbitrary number, you have to actually edit the file itself. So to create a 1,000 petabytes file, you need to have that much disk space first.
Another example would by the file type. You can't change a jpeg into a png by setting filetype=png. You have to process and convert the file, giving you an entirely new and different file with it's own set of metadata/properties.
I am trying to read an xml file of size 150 MB stored in SharePoint. I am getting error while reading file since message size limit is 100MB. Also get file content do not support chunking.
BadRequest. Http request failed as there is an error: 'Cannot write
more bytes to the buffer than the configured maximum buffer size:
104857600.'.
Is there a way to read large file or read file partially (by size or only few nodes in xml) and process the content in iteration using Power Automate?
Thank you!
I have been through many a links to solve this problem. However, none have helped me. Primarily because I am facing this error on Azure Databricks.
I am trying to read Excel files located on ADLS Curated zone. There are about 25 of the excel files. My program loops through the excel files and reads them into a PySpark Dataframe. However, after reading about 9 excel files, I receive the below error -
Py4JJavaError: An error occurred while calling o1481.load.
: java.io.IOException: Zip bomb detected! The file would exceed the max. ratio of compressed file size to the size of the expanded data.
This may indicate that the file is used to inflate memory usage and thus could pose a security risk.
You can adjust this limit via ZipSecureFile.setMinInflateRatio() if you need to work with files which exceed this limit.
Uncompressed size: 6111064, Raw/compressed size: 61100, ratio: 0.009998
I installed the maven - org.apache.poi.openxml4j but when I try to call it using the simple following import statement, I receive the error "No module named 'org'"
import org.apache.poi.openxml4j.util.ZipSecureFile
Any ideas anyone about how to set the ZipSecureFile.setMinInflateRatio() to 0 in Azure Databricks?
Best regards,
Sree
The "Zip bomb detected" exception will occur if the expanded file crosses the default MinInflateRatio set in the Apache jar. Apache includes a setting called MinInflateRatio which is configurable via ZipSecureFile.setMinInflateRatio() ; this will now be set to 0.0 by default to allow large files.
Checkout known issue in POI: https://bz.apache.org/bugzilla/show_bug.cgi?id=58499
Receiving errors from the Blob extractor that files are too large for the current tier, which is basic. I will be upgrading to a higher tier, but I notice that the max size is currently 256MB.
When I have PPTX files that are mostly video and audio, but have text I'm interested in, is there a way to index those? What does the blob extractor max file size actually mean?
Can I tell the extractor to only take the first X MB or chars and just stop?
There are two related limits in the blob indexer:
Max file size limit that you are hitting. If file size exceeds that limit, indexer doesn't attempt to download it and produces an error to make sure you are aware of the issue. The reason we don't just take first N bytes is because for parsing many formats correctly, the entire file is needed. You can mark blobs as skipable or configure indexer to ignore a number of errors if you want it to make forward progress when encountering blobs that are too large.
The max size of extracted text. In case file contains more text than that, indexer takes N characters up to the limit and includes a warning so you can be aware of the issue. Content that doesn't get extracted (such as video, at least today) doesn't contribute to this limit, of course.
How large are the PPTX you need indexed? I'll add my contact info in a comment.
I need to get any information about where the file is physically located on the NTFS disk. Absolute offset, cluster ID..anything.
I need to scan the disk twice, once to get allocated files and one more time I'll need to open partition directly in RAW mode and try to find the rest of data (from deleted files). I need a way to understand that the data I found is the same as the data I've already handled previously as file. As I'm scanning disk in raw mode, the offset of the data I found can be somehow converted to the offset of the file (having information about disk geometry). Is there any way to do this? Other solutions are accepted as well.
Now I'm playing with FSCTL_GET_NTFS_FILE_RECORD, but can't make it work at the moment and I'm not really sure it will help.
UPDATE
I found the following function
http://msdn.microsoft.com/en-us/library/windows/desktop/aa364952(v=vs.85).aspx
It returns structure that contains nFileIndexHigh and nFileIndexLow variables.
Documentation says
The identifier that is stored in the nFileIndexHigh and nFileIndexLow members is called the file ID. Support for file IDs is file system-specific. File IDs are not guaranteed to be unique over time, because file systems are free to reuse them. In some cases, the file ID for a file can change over time.
I don't really understand what is this. I can't connect it to the physical location of file. Is it possible later to extract this file ID from MFT?
UPDATE
Found this:
This identifier and the volume serial number uniquely identify a file. This number can change when the system is restarted or when the file is opened.
This doesn't satisfy my requirements, because I'm going to open the file and the fact that ID might change doesn't make me happy.
Any ideas?
Use the Defragmentation IOCTLs. For example, FSCTL_GET_RETRIEVAL_POINTERS will tell you the extents which contain file data.