| # Configuration file for cassandra mailbox |
| # Read https://james.apache.org/server/config-cassandra.html for further details |
| # Advanced Cassandra driver option needs to be set via cassandra-driver.conf configuration file |
| |
| cassandra.nodes=cassandra |
| cassandra.keyspace.create=true |
| cassandra.keyspace=apache_james |
| #cassandra.user=cassandra |
| #cassandra.password=cassandra |
| cassandra.replication.factor=1 |
| cassandra.retryConnection.maxRetries=200 |
| cassandra.retryConnection.minDelay=5000 |
| |
| ## These low level tuning options controls performance related options in Cassandra related code |
| ## The default values are documented here. Understand the effects before editing. |
| # mailbox.read.repair.chance=0.1 |
| ## Maximum probability of running a read repair for the mailbox counters |
| # mailbox.counters.read.repair.chance.max=0.1 |
| ## Probability of running a mailbox counters read repair for 100 messages. |
| ## Inversely proportional to the count of messages |
| ## Formula: read_repair_chance = min(mailbox.counters.read.repair.chance.max, (100/unseens)*mailbox.counters.read.repair.chance.one.hundred) |
| # mailbox.counters.read.repair.chance.one.hundred=0.01 |
| # mailbox.max.retry.acl=1000 |
| # mailbox.max.retry.modseq=100000 |
| # mailbox.max.retry.uid=100000 |
| # mailbox.max.retry.message.flags.update=1000 |
| # mailbox.max.retry.message.id.flags.update=1000 |
| # fetch.advance.row.count=1000 |
| # chunk.size.expunge=100 |
| # mailbox.blob.part.size=102400 |
| |
| # Optional. Allows specifying consistency level ONE for reads in Cassandra BlobStore. |
| # Falls back to default read consistency level if the blob is missing. |
| # Defaults to false. |
| # optimistic.consistency.level.enabled=false |
| |
| # Optional. Allows not to use lightweight transactions in CassandraMailRepository. |
| # If disabled we implement an idempotent behaviour (duplicates are overridden, missing entries upon deletes are ignored). |
| # Defaults to true. |
| # mailrepository.strong.consistency=true |
| |
| # Optional, default to 0. Defensive value to add to uids and modseqs generated. This can be used as an heuristic to maintain |
| # consistency even when consensus of Lightweight Transactions is broken, exemple during a disaster recovery process. |
| # uid.modseq.increment=0 |
