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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://jira.qos.ch/browse/LOGBACK-1238" style="color: #3b73af; text-decoration: none">Re: RollingFileAppender generating a large numbers of .tmp files</a> </span>
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<p style="margin: 10px 0 0 0">I can see two possibilities here:</p>
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Go back to having separate thread pools for executing different types of task. (Logback 1.1.6 had an <a href="https://github.com/qos-ch/logback/blob/v_1.1.6/logback-core/src/main/java/ch/qos/logback/core/rolling/helper/AsynchronousCompressor.java#L27" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none"><tt>AsynchronousCompressor</tt></a> class that executed each compression task in its own 1-thread pool. This meant the tasks did always run as soon as they were submitted.) Or at least ensure the long-running connection-accepting and connection-handling tasks are run separately from the 'quick' tasks like log file compression.
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Increase the size of the per-context executor thread pool. It's hardcoded to 2 threads (<a href="https://github.com/qos-ch/logback/blob/v_1.1.7/logback-core/src/main/java/ch/qos/logback/core/util/ExecutorServiceUtil.java#L52" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none"><tt>ExecutorServiceUtil</tt></a> & <a href="https://github.com/qos-ch/logback/blob/v_1.1.7/logback-core/src/main/java/ch/qos/logback/core/CoreConstants.java#L33" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none"><tt>CoreConstants</tt></a>) Or make the thread pool size configurable.
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