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https://issues.apache.org/jira/browse/ARTEMIS-5100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17890207#comment-17890207
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Justin Bertram edited comment on ARTEMIS-5100 at 10/16/24 6:11 PM:
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The reason this process doesn't read from {{broker.xml}} is because there is no
{{broker.xml}} to read from because the {{create}} command in use here is
actually _creating_ it.
In order to work-around this problem you do _one_ of the following:
* Pass {{--no-autotune}} and tune it later as necessary
* Pass {{--nio}} to eliminate AIO from the configuration
* Increase
[{{/proc/sys/fs/aio-max-nr}}|https://www.kernel.org/doc/html/latest/admin-guide/sysctl/fs.html#id1]
in the environment
* Wait and try again later since whatever is using AIO at the moment may slow
down or stop altogether
I will added a new parameter for the {{create}} command so that
{{journal-max-io}} can be configured explicitly so these work-arounds aren't
necessary in the future.
was (Author: jbertram):
The reason this process doesn't read from {{broker.xml}} is because there is no
{{broker.xml}} to read from because the {{create}} command in use here is
actually _creating_ it.
In order to get around this problem you do a few things:
* Pass {{--no-autotune}} and tune it later as necessary
* Increase
[{{/proc/sys/fs/aio-max-nr}}|https://www.kernel.org/doc/html/latest/admin-guide/sysctl/fs.html#id1]
in the environment
* Wait and try again later since whatever is using AIO at the moment may slow
down or stop altogether
I will added a new parameter for the {{create}} command so that
{{journal-max-io}} can be configured explicitly so these work-arounds aren't
necessary in the future.
> Add support for journal-max-io to create CLI command
> ----------------------------------------------------
>
> Key: ARTEMIS-5100
> URL: https://issues.apache.org/jira/browse/ARTEMIS-5100
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Components: Configuration
> Affects Versions: 2.33.0, 2.35.0
> Reporter: Valeriy Ak
> Assignee: Justin Bertram
> Priority: Minor
> Labels: asyncio, cloud, journal
>
> When the broker starts in the cloud, it runs the {{docker-run.sh}} script.
> This script performs auto-tuning for the journal (to achieve the best
> performance).
> However, the auto-tuning does not read {{broker.xml}} as I expected. Instead,
> it tries to determine the parameters for {{SyncCalculation.syncTest}} by
> itself.
>
> It retrieves the default value for {{maxio}} from
> {{{}ActiveMQDefaultConfiguration.getDefaultJournalMaxIoAio(){}}}, which
> cannot be changed through configuration parameters or any other way (the
> value is 4096).
>
> Thus, when {{newContext}} is called and it invokes the native
> {{{}io_queue_init{}}}, we encounter an error, and the execution stops.
> {code:java}
> Auto tuning journal ...java.lang.RuntimeException: Cannot initialize
> queue:Resource temporarily unavailable
> at org.apache.activemq.artemis.nativo.jlibaio.LibaioContext.newContext(Native
> Method)
> at
> org.apache.activemq.artemis.nativo.jlibaio.LibaioContext.<init>(LibaioContext.java:180)
>
> at
> org.apache.activemq.artemis.core.io.aio.AIOSequentialFileFactory.start(AIOSequentialFileFactory.java:290)
>
> at
> org.apache.activemq.artemis.cli.commands.util.SyncCalculation.newFactory(SyncCalculation.java:246)
>
> at
> org.apache.activemq.artemis.cli.commands.util.SyncCalculation.syncTest(SyncCalculation.java:80)
>
> at
> org.apache.activemq.artemis.cli.commands.Create.performAutoTune(Create.java:1045)
>
> at org.apache.activemq.artemis.cli.commands.Create.run(Create.java:824)
>
> at org.apache.activemq.artemis.cli.commands.Create.execute(Create.java:520)
>
> at org.apache.activemq.artemis.cli.Artemis.internalExecute(Artemis.java:221)
>
> at org.apache.activemq.artemis.cli.Artemis.execute(Artemis.java:167)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
>
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>
> at java.base/java.lang.reflect.Method.invoke(Method.java:568)
> at org.apache.activemq.artemis.boot.Artemis.execute(Artemis.java:157)
> at org.apache.activemq.artemis.boot.Artemis.main(Artemis.java:64)
> Couldn't perform sync calculation, using default values{code}
>
> I think it happened because the max-io value in the guest OS might be lower
> than the default value in Artemis.
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