Madhav created CASSANDRA-14178:
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Summary: MAX_TTL doesn't account for leap years currently
Key: CASSANDRA-14178
URL: https://issues.apache.org/jira/browse/CASSANDRA-14178
Project: Cassandra
Issue Type: Bug
Components: Configuration, Core, CQL
Reporter: Madhav
Currently at the trunk (and in all prior versions), we've MAX_TTL value defined
as 20 years in seconds, which really isn't 20 years as it currently doesn't
account for leap years.
{code:java}
https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/cql3/Attributes.java#L43
/**
* If this limit is ever raised, make sure @{@link Integer#MAX_VALUE} is not
allowed,
* as this is used as a flag to represent expired liveness.
*
* See {@link org.apache.cassandra.db.LivenessInfo#EXPIRED_LIVENESS_TTL}
*/
public static final int MAX_TTL = 20 * 365 * 24 * 60 * 60; // 20 years in
seconds
{code}
Either perform actual date calculation to account for leap years or not call it
as "20 years in seconds" as this breaks many code relying on it for playing
with dates.
This was originally introduced as part of [this
commit|https://github.com/apache/cassandra/commit/46fc843bbd39bf6b007fb6d1c8e823f8b3ba2425]
part of CASSANDRA-4771
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