sstablerepairedset
Repairs can take a very long time in some environments, for large sizes of data. Use this tool to set the repairedAt status on a given set of sstables, so that repairs can be run on only un-repaired sstables if desired.
Note that running a repair (e.g., via nodetool repair) doesn’t set the status of this metadata. Only setting the status of this metadata via this tool does.
Cassandra must be stopped before this tool is executed, or unexpected results will occur. Note: the script does not verify that Cassandra is stopped.
Usage
sstablerepairedset --really-set <options> [-f <sstable-list> | <sstables>]
--really-set |
required if you want to really set the status |
--is-repaired |
set the repairedAt status to the last modified time |
--is-unrepaired |
set the repairedAt status to 0 |
-f |
use a file containing a list of sstables as the input |
Set a lot of sstables to unrepaired status
There are many ways to do this programmatically. This way would likely include variables for the keyspace and table.
Example:
find /var/lib/cassandra/data/keyspace1/standard1-d936bd20a17c11e8bc92a55ed562cd82/* -name "*Data.db" -print0 | xargs -0 -I % sstablerepairedset --really-set --is-unrepaired %
Set one to many sstables to repaired status
Set the repairedAt status after a repair to mark the sstables as repaired. Again, using variables for the keyspace and table names is a good choice.
Example:
nodetool repair keyspace1 standard1 find /var/lib/cassandra/data/keyspace1/standard1-d936bd20a17c11e8bc92a55ed562cd82/* -name "*Data.db" -print0 | xargs -0 -I % sstablerepairedset --really-set --is-repaired %
Print metadata showing repaired status
sstablemetadata can be used to view the status set or unset using this command.
Example:
sstablerepairedset --really-set --is-repaired /var/lib/cassandra/data/keyspace1/standard1-d936bd20a17c11e8bc92a55ed562cd82/mc-1-big-Data.db sstablemetadata /var/lib/cassandra/data/keyspace1/standard1-d936bd20a17c11e8bc92a55ed562cd82/mc-1-big-Data.db | grep "Repaired at" Repaired at: 1534443974000
sstablerepairedset --really-set --is-unrepaired /var/lib/cassandra/data/keyspace1/standard1-d936bd20a17c11e8bc92a55ed562cd82/mc-1-big-Data.db sstablemetadata /var/lib/cassandra/data/keyspace1/standard1-d936bd20a17c11e8bc92a55ed562cd82/mc-1-big-Data.db | grep "Repaired at" Repaired at: 0
