Hello, Ilya.
> I think this is a bad idea since it legitimizes wide use of IGNITE_
> properties, which shows weakness of our configuration API, etc.
We already have IGNITE options in the product as a part of public API. See
`org.apache.ignite.IgniteSystemProperties`.
> 7 сент. 2020 г., в 14:40, Ilya Kasnacheev <ilya.kasnach...@gmail.com>
> написал(а):
>
> Hello!
>
> I think this is a bad idea since it legitimizes wide use of IGNITE_
> properties, which shows weakness of our configuration API, etc.
>
> My take:
>
> All of IGNITE_ properties which are useful (and will go to -X) should
> instead be turned into configuration/metastore settings.
> All of IGNITE_ properties which are dangerous and/or useless should be
> removed.
>
> Regards,
> --
> Ilya Kasnacheev
>
>
> пт, 21 авг. 2020 г. в 16:50, Nikolay Izhikov <nizhi...@apache.org>:
>
>> Hello, Igniters.
>>
>> For now, we have dozens of the `IgniteSystemProperties` [1] that can
>> tweak Ignite behaviour in the very wide limits.
>> But, the issue, for the administrator is the following
>>
>> - Documentation about existing properties can be outdated.
>> - The only place of the truth is the source code.
>> - It’s hard to understand what flag is supported in what version.
>>
>> I propose to implement output of all available properties with it’s
>> descriptions in the `ignite.sh -X` command.
>>
>> Example of the JVM output:
>>
>> ```
>> [16:25:49]~/src/ignite:[master]$ java -X
>>
>> -Xbatch disable background compilation
>> -Xbootclasspath/a:<directories and zip/jar files separated by :>
>> append to end of bootstrap class path
>> -Xcheck:jni perform additional checks for JNI functions
>> -Xcomp forces compilation of methods on first invocation
>> -Xdebug provided for backward compatibility
>> -Xdiag show additional diagnostic messages
>> -Xfuture enable strictest checks, anticipating future default
>> -Xint interpreted mode execution only
>> -Xinternalversion
>> displays more detailed JVM version information than
>> the
>>
>> [16:28:45]~/src/ignite:[master]$ java -XX:+UnlockDiagnosticVMOptions
>> -XX:+PrintFlagsFinal -version
>>
>> [Global flags]
>> ccstrlist AOTLibrary =
>> {product} {default}
>> bool AbortVMOnCompilationFailure = false
>> {diagnostic} {default}
>> ccstr AbortVMOnException =
>> {diagnostic} {default}
>> ccstr AbortVMOnExceptionMessage =
>> {diagnostic} {default}
>> bool AbortVMOnSafepointTimeout = false
>> {diagnostic} {default}
>> bool AbortVMOnVMOperationTimeout = false
>> {diagnostic} {default}
>> intx AbortVMOnVMOperationTimeoutDelay = 1000
>> {diagnostic} {default}
>> int ActiveProcessorCount = -1
>> {product} {default}
>>
>> ```
>>
>> Example of the Ignite output:
>>
>> ````
>>> ignite.sh -X
>> IGNITE_CONFIG_URL
>> - System property to hold optional configuration URL.
>> IGNITE_SSH_HOST -
>> System property to hold SSH host for visor-started nodes.
>> IGNITE_MIN_BUFFERED_COMMUNICATION_MSG_CNT - [DEPRECATED]
>> System property to disable buffered communication if node sends less
>> messages count than specified by this property. Default value is {@code
>> 512}.
>>
>> …
>>
>> ```
>>
>> WDYT?
>>
>> [1]
>> https://github.com/apache/ignite/blob/master/modules/core/src/main/java/org/apache/ignite/IgniteSystemProperties.java#L56
