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- DSpace 7.x (Current Release)
- DSpace 8.x (Unreleased)
- DSpace 6.x (EOL)
- DSpace 5.x (EOL)
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Java class: | org.dspace.app.checker.ChecksumChecker | ||
Arguments short and (long) forms): | Description | ||
| Loop continuously through the bitstreams | ||
| Specify a handle to check | ||
| Space separated list of bitstream IDs | ||
| Check count | ||
| Checking duration | ||
| Calls online help | ||
| Loop once through bitstreams | ||
| Prune old results (optionally using specified properties file for configuration | ||
| Report all processing |
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*Limited-count mode:* {{\[DSDOCDEV:dspace\]/bin/dspace checker \-c}} To check a specific number of bitstreams. The _\-c_ option if followed by an integer, the number of bitstreams to check. Example: {{\[dspace/bin/dspace checker \-c 10}} This is particularly useful for checking that the checker is executing properly. The Checksum Checker's default execution mode is to check a single bitstream, as if the option was _\-c 1_ |
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*Duration mode:* {{\[DSDOCDEV:dspace\]/bin/dspace checker \-d}} To run the Check for a specific period of time with a time argument. You may use any of the time arguments below: Example: {{\[dspace/bin/dspace checker \-d 2h}} (Checker will run for 2 hours) |
s | Seconds |
m | Minutes |
h | Hours |
d | Days |
w | Weeks |
y | Years |
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*Specific Bitstream mode:* {{\[DSDOCDEV:dspace\]/bin/dspace checker \-b}} Checker will only look at the internal bitstream IDs. Example: {{\[DSDOCDEV:dspace\]/bin/dspace checker \-b 112 113 4567}} Checker will only check bitstream IDs 112, 113 and 4567. |
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*Specific Handle mode:* {{\[DSDOCDEV:dspace\]/bin/dspace checker \-a}} Checker will only check bitstreams within the Community, Community or the item itself. Example: {{\[DSDOCDEV:dspace\]/bin/dspace checker \-a 123456/999}} Checker will only check this handle. If it is a Collection or Community, it will run through the entire Collection or Community. |
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*Looping mode:* {{\[DSDOCDEV:dspace\]/bin/dspace checker \-l}} or {{\[DSDOCDEV:dspace\]/bin/dspace checker \-L}} There are two modes. The lowercase 'el' (-l) specifies to check every bitstream in the repository once. This is recommended for smaller repositories who are able to loop through all their content in just a few hours maximum. An uppercase 'L' (-L) specifies to continuously loops through the repository. This is not recommended for most repository systems. *Cron Jobs*. For large repositories that cannot be completely checked in a couple of hours, we recommend the \-d option in cron. |
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*Pruning mode:* {{\[DSDOCDEV:dspace\]/bin/dspace checker \-p}} The Checksum Checker will store the result of every check in the checksum_history table. By default, successful checksum matches that are eight weeks old or older will be deleted when the \-p option is used. (Unsuccessful ones will be retained indefinitely). Without this option, the retention settings are ignored and the database table may grow rather large\! |
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Editing the retention policies in {{\[DSDOCDEV:dspace\]/config/dspace.cfg}} See Chapter 5 Configuration for the property keys. OR |
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checker.retention.default = 10y checker.retention.CHECKSUM_MATCH = 8w |
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You can use the table above for your time units. At the command line: {{\[DSDOCDEV:dspace\]/bin/dspace checker \-p retention_file_name <ENTER>}} |
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Checksum Checker uses log4j to report its results. By default it will report to a log called {{\[DSDOCDEV:dspace\]/log/checker.log}}, and it will report only on bitstreams for which the newly calculated checksum does not match the stored checksum. To report on all bitstreams checked regardless of outcome, use the _\-v_ (verbose) command line option: |
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{{\[DSDOCDEV:dspace\]/bin/dspace checker \-l \-v}} (This will loop through the repository once and report in detail about every bitstream checked. |
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To change the location of the log, or to modify the prefix used on each line of output, edit the {{\[DSDOCDEV:dspace\]/config/templates/log4j.properties}} file and run {{\[DSDOCDEV:dspace\]/bin/install_configs}}. |
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Java class: | org.dspace.checker.DailyReportEmailer | ||
Arguments short and (long) forms): | Description | ||
| Send all the results (everything specified below) | ||
| Send E-mail report for all bitstreams set as deleted for today. | ||
| Send E-mail report for all bitstreams not found in assetstore for today. | ||
| Send E-mail report for all bitstreams where checksum has been changed for today. | ||
| Send the Unchecked bitstream report. | ||
| Send E-mail report for all bitstreams set to longer be processed for today. | ||
| Help |
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