diff options
author | Eelco Dolstra <e.dolstra@tudelft.nl> | 2003-08-13 09:13:52 +0000 |
---|---|---|
committer | Eelco Dolstra <e.dolstra@tudelft.nl> | 2003-08-13 09:13:52 +0000 |
commit | b4f88d0ec364f00196127ea29e8db5033368e23a (patch) | |
tree | fad418cdf09bd63cdc932b9b25531b75f55eaa29 /doc/manual/troubleshooting.xml | |
parent | 469f1eba561403639e777721cacd59e0a6cdc39d (diff) |
* Split the book.xml into several xml files.
Diffstat (limited to 'doc/manual/troubleshooting.xml')
-rw-r--r-- | doc/manual/troubleshooting.xml | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/doc/manual/troubleshooting.xml b/doc/manual/troubleshooting.xml new file mode 100644 index 000000000..018b3555f --- /dev/null +++ b/doc/manual/troubleshooting.xml @@ -0,0 +1,49 @@ +<appendix> + <title>Troubleshooting</title> + + <sect1> + <title>Database hangs</title> + + <para> + If Nix or Fix appear to hang immediately after they are started, Nix's + database is probably <quote>wedged</quote>, i.e., some process died while + it held a lock on the database. The solution is to ensure that no other + processes are accessing the database and then run the following command: + </para> + + <screen> + $ db_recover -e -h <replaceable>prefix</replaceable>/var/nix/db</screen> + + <para> + Here, <replaceable>prefix</replaceable> should be replaced by Nix's + installation prefix. + </para> + + </sect1> + + + <sect1> + <title>Database logfile removal</title> + + <para> + Every time a Nix database transaction takes place, Nix writes a record of + this transaction to a <emphasis>log</emphasis> in its database directory + to ensure that the operation can be replayed in case of a application or + system crash. However, without manual intervention, the log grows + indefinitely. Hence, unused log files should be deleted periodically. + This can be accomplished using the following command: + </para> + + <screen> + $ rm `db_archive -a -h + <replaceable>prefix</replaceable>/var/nix/db`</screen> + + </sect1> + +</appendix> + +<!-- +local variables: +sgml-parent-document: ("book.xml" "appendix") +end: +--> |