Decompressing file as uploading to HDFS
I have data that I want to upload to HDFS
data folder is multi-layer, but innermost dir only contains multiple .gz files.
folder is about 250 GB compressed, and I don't know how many gz files are in there.
I want to upload this to HDFS but they should be decompressed.
Is there a way that I can achieve this with single hadoop fs -put command?
or is writing a script file decompressing one by one and uploading to hdfs the only way?
hadoop hdfs
asked Nov 16 '18 at 3:42
Brandon LeeBrandon Lee
676
add a comment |
I have data that I want to upload to HDFS
data folder is multi-layer, but innermost dir only contains multiple .gz files.
folder is about 250 GB compressed, and I don't know how many gz files are in there.
I want to upload this to HDFS but they should be decompressed.
Is there a way that I can achieve this with single hadoop fs -put command?
or is writing a script file decompressing one by one and uploading to hdfs the only way?
hadoop hdfs
asked Nov 16 '18 at 3:42
Brandon LeeBrandon Lee
676
GZ files are supported by most Hadoop processes. They just aren't splittable.-putcannot extract, though
– cricket_007
Nov 16 '18 at 10:10
yes, that is my concern. putting gz directly on hdfs is not an issue. The fact that they should be decompressed when it is on hdfs is.
– Brandon Lee
Nov 16 '18 at 15:08
You could look into adding Apache Nifi and using its ExtractFile processors
– cricket_007
Nov 16 '18 at 15:30
add a comment |
I have data that I want to upload to HDFS
data folder is multi-layer, but innermost dir only contains multiple .gz files.
folder is about 250 GB compressed, and I don't know how many gz files are in there.
I want to upload this to HDFS but they should be decompressed.
Is there a way that I can achieve this with single hadoop fs -put command?
or is writing a script file decompressing one by one and uploading to hdfs the only way?
hadoop hdfs
asked Nov 16 '18 at 3:42
Brandon LeeBrandon Lee
676
I have data that I want to upload to HDFS
data folder is multi-layer, but innermost dir only contains multiple .gz files.
folder is about 250 GB compressed, and I don't know how many gz files are in there.
I want to upload this to HDFS but they should be decompressed.
Is there a way that I can achieve this with single hadoop fs -put command?
or is writing a script file decompressing one by one and uploading to hdfs the only way?
hadoop hdfs
hadoop hdfs
asked Nov 16 '18 at 3:42
Brandon LeeBrandon Lee
676
asked Nov 16 '18 at 3:42
Brandon LeeBrandon Lee
676
asked Nov 16 '18 at 3:42
Brandon LeeBrandon Lee
676
asked Nov 16 '18 at 3:42
Brandon LeeBrandon Lee
676
asked Nov 16 '18 at 3:42
Brandon LeeBrandon Lee
676
676
GZ files are supported by most Hadoop processes. They just aren't splittable.-putcannot extract, though
– cricket_007
Nov 16 '18 at 10:10
yes, that is my concern. putting gz directly on hdfs is not an issue. The fact that they should be decompressed when it is on hdfs is.
– Brandon Lee
Nov 16 '18 at 15:08
You could look into adding Apache Nifi and using its ExtractFile processors
– cricket_007
Nov 16 '18 at 15:30
add a comment |
GZ files are supported by most Hadoop processes. They just aren't splittable.-putcannot extract, though
– cricket_007
Nov 16 '18 at 10:10
yes, that is my concern. putting gz directly on hdfs is not an issue. The fact that they should be decompressed when it is on hdfs is.
– Brandon Lee
Nov 16 '18 at 15:08
You could look into adding Apache Nifi and using its ExtractFile processors
– cricket_007
Nov 16 '18 at 15:30
GZ files are supported by most Hadoop processes. They just aren't splittable.
-put cannot extract, though– cricket_007
Nov 16 '18 at 10:10
GZ files are supported by most Hadoop processes. They just aren't splittable.
-put cannot extract, though– cricket_007
Nov 16 '18 at 10:10
yes, that is my concern. putting gz directly on hdfs is not an issue. The fact that they should be decompressed when it is on hdfs is.
– Brandon Lee
Nov 16 '18 at 15:08
yes, that is my concern. putting gz directly on hdfs is not an issue. The fact that they should be decompressed when it is on hdfs is.
– Brandon Lee
Nov 16 '18 at 15:08
You could look into adding Apache Nifi and using its ExtractFile processors
– cricket_007
Nov 16 '18 at 15:30
You could look into adding Apache Nifi and using its ExtractFile processors
– cricket_007
Nov 16 '18 at 15:30
add a comment |
1 Answer
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I think you can do that only with a script file, by uncompressing each file. But you can reduce the script with a pipe, something like this:
for file in $( ls ); do
echo Uncompressing and putting $file
gunzip -c $file | hdfs dfs -put - "/hdfs-dir/$file.txt"
done
answered Nov 16 '18 at 17:10
Marco ReisMarco Reis
644
ya I just created script as well
– Brandon Lee
Nov 23 '18 at 19:49
add a comment |
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1 Answer
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oldest
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oldest
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votes
I think you can do that only with a script file, by uncompressing each file. But you can reduce the script with a pipe, something like this:
for file in $( ls ); do
echo Uncompressing and putting $file
gunzip -c $file | hdfs dfs -put - "/hdfs-dir/$file.txt"
done
answered Nov 16 '18 at 17:10
Marco ReisMarco Reis
644
ya I just created script as well
– Brandon Lee
Nov 23 '18 at 19:49
add a comment |
I think you can do that only with a script file, by uncompressing each file. But you can reduce the script with a pipe, something like this:
for file in $( ls ); do
echo Uncompressing and putting $file
gunzip -c $file | hdfs dfs -put - "/hdfs-dir/$file.txt"
done
answered Nov 16 '18 at 17:10
Marco ReisMarco Reis
644
ya I just created script as well
– Brandon Lee
Nov 23 '18 at 19:49
add a comment |
I think you can do that only with a script file, by uncompressing each file. But you can reduce the script with a pipe, something like this:
for file in $( ls ); do
echo Uncompressing and putting $file
gunzip -c $file | hdfs dfs -put - "/hdfs-dir/$file.txt"
done
answered Nov 16 '18 at 17:10
Marco ReisMarco Reis
644
I think you can do that only with a script file, by uncompressing each file. But you can reduce the script with a pipe, something like this:
for file in $( ls ); do
echo Uncompressing and putting $file
gunzip -c $file | hdfs dfs -put - "/hdfs-dir/$file.txt"
done
answered Nov 16 '18 at 17:10
Marco ReisMarco Reis
644
answered Nov 16 '18 at 17:10
Marco ReisMarco Reis
644
answered Nov 16 '18 at 17:10
Marco ReisMarco Reis
644
answered Nov 16 '18 at 17:10
Marco ReisMarco Reis
644
644
ya I just created script as well
– Brandon Lee
Nov 23 '18 at 19:49
add a comment |
ya I just created script as well
– Brandon Lee
Nov 23 '18 at 19:49
ya I just created script as well
– Brandon Lee
Nov 23 '18 at 19:49
ya I just created script as well
– Brandon Lee
Nov 23 '18 at 19:49
add a comment |
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GZ files are supported by most Hadoop processes. They just aren't splittable.
-putcannot extract, though– cricket_007
Nov 16 '18 at 10:10
yes, that is my concern. putting gz directly on hdfs is not an issue. The fact that they should be decompressed when it is on hdfs is.
– Brandon Lee
Nov 16 '18 at 15:08
You could look into adding Apache Nifi and using its ExtractFile processors
– cricket_007
Nov 16 '18 at 15:30