Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

MINOR: clarify message ordering with max in-flight requests and idempotent producer #10690

Merged
merged 3 commits into from
May 24, 2021
Merged

MINOR: clarify message ordering with max in-flight requests and idempotent producer #10690

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
a519109
clarify in docs
ableegoldman May 14, 2021
df1e94a
review feedback
ableegoldman May 14, 2021
899e704
fix typo and long line
ableegoldman May 21, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 6 additions & 6 deletions clients/src/main/java/org/apache/kafka/clients/producer/ProducerConfig.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -200,8 +200,8 @@ public class ProducerConfig extends AbstractConfig {
/** <code>max.in.flight.requests.per.connection</code> */
public static final String MAX_IN_FLIGHT_REQUESTS_PER_CONNECTION = "max.in.flight.requests.per.connection";
private static final String MAX_IN_FLIGHT_REQUESTS_PER_CONNECTION_DOC = "The maximum number of unacknowledged requests the client will send on a single connection before blocking."
+ " Note that if this setting is set to be greater than 1 and there are failed sends, there is a risk of"
+ " message re-ordering due to retries (i.e., if retries are enabled).";
+ " Note that if this config is set to be greater than 1 and <code>enable.idempotence</code> is set to false, there is a risk of"
+ " message re-ordering after a failed send due to retries (i.e., if retries are enabled).";

/** <code>retries</code> */
public static final String RETRIES_CONFIG = CommonClientConfigs.RETRIES_CONFIG;
Expand Down Expand Up @@ -246,10 +246,10 @@ public class ProducerConfig extends AbstractConfig {
public static final String ENABLE_IDEMPOTENCE_CONFIG = "enable.idempotence";
public static final String ENABLE_IDEMPOTENCE_DOC = "When set to 'true', the producer will ensure that exactly one copy of each message is written in the stream. If 'false', producer "
+ "retries due to broker failures, etc., may write duplicates of the retried message in the stream. "
+ "Note that enabling idempotence requires <code>" + MAX_IN_FLIGHT_REQUESTS_PER_CONNECTION + "</code> to be less than or equal to 5, "
+ "<code>" + RETRIES_CONFIG + "</code> to be greater than 0 and <code>" + ACKS_CONFIG + "</code> must be 'all'. If these values "
+ "are not explicitly set by the user, suitable values will be chosen. If incompatible values are set, "
+ "a <code>ConfigException</code> will be thrown.";
+ "Note that enabling idempotence requires <code>" + MAX_IN_FLIGHT_REQUESTS_PER_CONNECTION + "</code> to be less than or equal to 5 "
+ "(with message ordering preserved for any allowable value), <code>" + RETRIES_CONFIG + "</code> to be greater than 0, and <code>"
+ ACKS_CONFIG + "</code> must be 'all'. If these values are not explicitly set by the user, suitable values will be chosen. If incompatible "
+ "values are set, a <code>ConfigException</code> will be thrown.";

/** <code> transaction.timeout.ms </code> */
public static final String TRANSACTION_TIMEOUT_CONFIG = "transaction.timeout.ms";
Expand Down