Cassandra logs display the following error:
java.lang.IllegalArgumentException: Mutation of
number-value bytes is too large for the maximum size of
number-value.
Condition
When the Cassandra commit log takes up too much disk space, connection issues might
occur.
The
following is an example
of an
error
message for
this issue: java.lang.IllegalArgumentException:
Mutation of 33749684 bytes is too large for the maximum size of
33554432.
Procedure-
Review your application data model
and segment
the
records into smaller units.
For example: If your main data set contains
2,000
customer records, segment the data set into four smaller data
sets
of 500 customer records each.
-
As a temporary workaround for the error, in the
prconfig.xml file, increase the maximum commit
log size in megabytes by specifying the value of the
commitlog_segment_size_in_mb property.
For example: <env name=“dnode/yaml/commitlog_segment_size_in_mb”
value=“64”/>
Warning: Increase the maximum commit log size only as a
temporary workaround. Permanently increased record writes
might
have a negative impact on database
performance,
which
can affect
system
performance.