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The following commit(s) were added to refs/heads/trunk by this push:
new 3d087244d8 MINOR: Note that slf4j-log4j in version 1.7.35+ should be
used (#12114)
3d087244d8 is described below
commit 3d087244d848b2b3b9cea1965d72aca9c5596fc1
Author: Bruno Cadonna <[email protected]>
AuthorDate: Tue May 3 12:24:53 2022 +0200
MINOR: Note that slf4j-log4j in version 1.7.35+ should be used (#12114)
Adds a note to the upgrade notes to use slf4j-log4j version
1.7.35+ [1] or slf4j-reload4j to avoid possible compatibility issues
originating from the logging framework [2].
[1] https://www.slf4j.org/manual.html#swapping
[2] https://www.slf4j.org/codes.html#no_tlm
Reviewer: Ismael Juma <[email protected]>
---
docs/upgrade.html | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/docs/upgrade.html b/docs/upgrade.html
index 033c8b9ffb..226013df8c 100644
--- a/docs/upgrade.html
+++ b/docs/upgrade.html
@@ -73,7 +73,13 @@
via Connect worker and/or connector configuration. Connect may
enable idempotent producers
by default in a future major release.</li>
<li>Kafka has replaced log4j and slf4j-log4j12 with reload4j and
slf4j-reload4j due to security concerns.
- More information can be found at <a
href"https://reload4j.qos.ch";>reload4j</a>.</li>
+ This only affects modules that specify a logging backend
(<code>connect-runtime</code> and <code>kafka-tools</code> are two such
examples).
+ A number of modules, including <code>kafka-clients</code>, leave
it to the application to specify the logging backend.
+ More information can be found at <a
href"https://reload4j.qos.ch";>reload4j</a>.
+ Projects that depend on the affected modules from the Kafka
project should use
+ <a href="https://www.slf4j.org/manual.html#swapping";>slf4j-log4j12
version 1.7.35 or above</a> or
+ slf4j-reload4j to avoid
+ <a href="https://www.slf4j.org/codes.html#no_tlm";>possible
compatibility issues originating from the logging framework</a>.</li>
<li>The example connectors, <code>FileStreamSourceConnector</code> and
<code>FileStreamSinkConnector</code>, have been
removed from the default classpath. To use them in Kafka Connect
standalone or distributed mode they need to be
explicitly added, for example
<code>CLASSPATH=./lib/connect-file-3.2.0.jar
./bin/connect-distributed.sh</code>.</li>
