** Description changed: - Hallo, + Hi there, - wir betreiben den apache mit mod_proxy_balancer und leiten unsere Http- - Requests an Tomcat Applicationserver weiter. Seit dem Security-Update - vom 10.03. (Ubuntu Security Notice USN-2523-1) haben wir das Problem, - dass unser Apache nach einer Weile stoppt. Das Error-Log zeigt folgende - Meldung: + currently we are using apache with the mod_proxy_balancer module to lead + HTTP requests to tomcat backend server. + + Since a security patch on 10th of March (Ubuntu Security Notice + USN-2523-1), the apache stops working randomly. The error.log shows on + single message: [Sun Mar 15 10:22:18.483077 2015] [:emerg] [pid 24451:tid 140709170571136] AH00020: Configuration Failed, exiting - - Wir beobachten seither auch, dass vor einem Crash folgende Meldungen im Error-Log stehen und das mehrmals pro Minute, wie man am Zeitstempel erkennen kann: + Prior to this single log entry there are a lot of graceful restarts many + times per minute. Refer to following messages: [Sun Mar 15 10:22:16.718748 2015] [core:notice] [pid 24451:tid 140709170571136] AH00094: Command line: '/usr/sbin/apache2' [Sun Mar 15 10:22:16.777279 2015] [mpm_worker:notice] [pid 24451:tid 140709170571136] AH00297: SIGUSR1 received. Doing graceful restart [Sun Mar 15 10:22:16.956168 2015] [ssl:warn] [pid 24451:tid 140709170571136] AH02292: Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366) [Sun Mar 15 10:22:16.956228 2015] [mpm_worker:notice] [pid 24451:tid 140709170571136] AH00292: Apache/2.4.7 (Ubuntu) OpenSSL/1.0.1f configured -- resuming normal operations [Sun Mar 15 10:22:16.956232 2015] [core:notice] [pid 24451:tid 140709170571136] AH00094: Command line: '/usr/sbin/apache2' [Sun Mar 15 10:22:17.023168 2015] [mpm_worker:notice] [pid 24451:tid 140709170571136] AH00297: SIGUSR1 received. Doing graceful restart [Sun Mar 15 10:22:17.209792 2015] [ssl:warn] [pid 24451:tid 140709170571136] AH02292: Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366) [Sun Mar 15 10:22:17.209846 2015] [mpm_worker:notice] [pid 24451:tid 140709170571136] AH00292: Apache/2.4.7 (Ubuntu) OpenSSL/1.0.1f configured -- resuming normal operations [Sun Mar 15 10:22:17.209849 2015] [core:notice] [pid 24451:tid 140709170571136] AH00094: Command line: '/usr/sbin/apache2' [Sun Mar 15 10:22:17.840076 2015] [mpm_worker:notice] [pid 24451:tid 140709170571136] AH00297: SIGUSR1 received. Doing graceful restart [Sun Mar 15 10:22:18.039028 2015] [ssl:warn] [pid 24451:tid 140709170571136] AH02292: Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366) [Sun Mar 15 10:22:18.039083 2015] [mpm_worker:notice] [pid 24451:tid 140709170571136] AH00292: Apache/2.4.7 (Ubuntu) OpenSSL/1.0.1f configured -- resuming normal operations [Sun Mar 15 10:22:18.039088 2015] [core:notice] [pid 24451:tid 140709170571136] AH00094: Command line: '/usr/sbin/apache2' [Sun Mar 15 10:22:18.075983 2015] [mpm_worker:notice] [pid 24451:tid 140709170571136] AH00297: SIGUSR1 received. Doing graceful restart [Sun Mar 15 10:22:18.261200 2015] [ssl:warn] [pid 24451:tid 140709170571136] AH02292: Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366) [Sun Mar 15 10:22:18.261255 2015] [mpm_worker:notice] [pid 24451:tid 140709170571136] AH00292: Apache/2.4.7 (Ubuntu) OpenSSL/1.0.1f configured -- resuming normal operations [Sun Mar 15 10:22:18.261263 2015] [core:notice] [pid 24451:tid 140709170571136] AH00094: Command line: '/usr/sbin/apache2' [Sun Mar 15 10:22:18.310111 2015] [mpm_worker:notice] [pid 24451:tid 140709170571136] AH00297: SIGUSR1 received. Doing graceful restart + Setup: Ubuntu 14.04 LTS mit apache 2.4.7-1ubuntu4.4 on physical + hardware with CPU Intel® Xeon® E3-1270 v3 Quad-Core Haswell (incl. + Hyper-Threading), 32 GB ECC RAM, 2 x 240 GB SATA 6 Gb/s Data Center + Series SSD - Unser Setup: Ubuntu 14.04 LTS mit apache 2.4.7-1ubuntu4.4 auf Hardware Maschinen mit Intel® Xeon® E3-1270 v3 - Quad-Core Haswell inkl. Hyper-Threading-Technologie, Arbeitsspeicher32 GB ECC RAM, Festplatten2 x 240 GB SATA 6 Gb/s Data Center Series SSD - - Konfiguration: - Anzal VHosts: ca.600 + Apache MPM-Conf: <IfModule mpm_worker_module> - StartServers 5 - MinSpareThreads 320 - MaxSpareThreads 640 - ThreadsPerChild 128 - MaxRequestWorkers 8192 - MaxConnectionsPerChild 0 - ThreadLimit 128 - ServerLimit 64 + StartServers 5 + MinSpareThreads 320 + MaxSpareThreads 640 + ThreadsPerChild 128 + MaxRequestWorkers 8192 + MaxConnectionsPerChild 0 + ThreadLimit 128 + ServerLimit 64 </IfModule> + Thera are approx. 600 virtual hosts configured. - Leider können wir uns das nicht erklären. Was könnte hierfür die Ursache sein? - - Viele Grüße + Best Regards, Andreas
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