Hi Isha, You’re right, I wasn’t aware of this rollingPolicy and the supported patterns for it. After reading logback documentation, it looks %i is mandatory with %d when using SizeAndTimeBaseRollingPolicy.
Thanks for pointing me there! Regards Emmanuel C2 - Restricted De : Isha Lamboo <[email protected]> Envoyé : mardi 18 janvier 2022 11:40 À : [email protected] Objet : RE: nifi-app log rotation Hi Emmanuel, The filename pattern needs to match with the rolling policy. You omitted that line in your snippet, but by default, the nifi-app looks like this: <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"> SizeAndTimeBased means you have to use both %d (time) and %i (size). If you only want to use one of those, change the policy to TimeBased or SizeBased. In your example, you left out the %i, so it will be invalid for the default policy. Change the policy to TimeBasedRollingPolicy (like the user file has) to make it work. You can also add “debug=true” to the <configuration scan="true" scanPeriod="30 seconds"> tag, but that only takes effect if you submit a valid configuration, so you may need to revert to the original one first. With debug on, you’ll find more feedback in the logfile. Regards, Isha Van: QUEVILLON EMMANUEL - EXT-SAFRAN ENGINEERING SERVICES (SAFRAN) <[email protected]<mailto:[email protected]>> Verzonden: dinsdag 18 januari 2022 10:54 Aan: [email protected]<mailto:[email protected]> Onderwerp: nifi-app log rotation Hi guys, I’m trying to configure the nifi-app.log rotation process by decreasing the rotation time and compressing the final rotated file. To do this, I’ve updated ‘conf/logback.xml’ file by this default configuration: <appender name="APP_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> … <fileNamePattern>${org.apache.nifi.bootstrap.config.log.dir}/nifi-app_%d{yyyy-MM-dd_HH}.%i.log</fileNamePattern> … </appender> To this one <appender name="APP_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> … <fileNamePattern>${org.apache.nifi.bootstrap.config.log.dir}/nifi-app_%d.log.gz</fileNamePattern> … </appender> However, since I’ve updated `conf/logback.xml`, nifi-appl.log is not updated anymore and not new file is created. I’ve tried different patterns and the following are working ok (log append to nifi-app.log): 1. 'nifi-app_%d.%i.log.gz' 2. 'nifi-app_%d{yyyy-MM-dd_HH}.%i.log.gz' But either 'nifi-app_%d{yyyy-MM-dd_HH}.log.gz' nor nifi-app_%d.log.gz are working. It there a reason for that? Sounds like the ‘%i’ in the fileNamePattern is required, whereas it is not the case for ‘nifi-user.log’ for example, this configuration ‘nifi-app_%d.log.gz’ is working ok, logs are appended into ‘nifi-user.log’ Thanks for any help Emmanuel C2 - Restricted # " Ce courriel et les documents qui lui sont joints peuvent contenir des informations confidentielles, être soumis aux règlementations relatives au contrôle des exportations ou ayant un caractère privé. S'ils ne vous sont pas destinés, nous vous signalons qu'il est strictement interdit de les divulguer, de les reproduire ou d'en utiliser de quelque manière que ce soit le contenu. Toute exportation ou réexportation non autorisée est interdite Si ce message vous a été transmis par erreur, merci d'en informer l'expéditeur et de supprimer immédiatement de votre système informatique ce courriel ainsi que tous les documents qui y sont attachés." ****** " This e-mail and any attached documents may contain confidential or proprietary information and may be subject to export control laws and regulations. If you are not the intended recipient, you are notified that any dissemination, copying of this e-mail and any attachments thereto or use of their contents by any means whatsoever is strictly prohibited. Unauthorized export or re-export is prohibited. If you have received this e-mail in error, please advise the sender immediately and delete this e-mail and all attached documents from your computer system." # # " Ce courriel et les documents qui lui sont joints peuvent contenir des informations confidentielles, être soumis aux règlementations relatives au contrôle des exportations ou ayant un caractère privé. S'ils ne vous sont pas destinés, nous vous signalons qu'il est strictement interdit de les divulguer, de les reproduire ou d'en utiliser de quelque manière que ce soit le contenu. Toute exportation ou réexportation non autorisée est interdite Si ce message vous a été transmis par erreur, merci d'en informer l'expéditeur et de supprimer immédiatement de votre système informatique ce courriel ainsi que tous les documents qui y sont attachés." ****** " This e-mail and any attached documents may contain confidential or proprietary information and may be subject to export control laws and regulations. If you are not the intended recipient, you are notified that any dissemination, copying of this e-mail and any attachments thereto or use of their contents by any means whatsoever is strictly prohibited. Unauthorized export or re-export is prohibited. If you have received this e-mail in error, please advise the sender immediately and delete this e-mail and all attached documents from your computer system." #
