Hello,
we are experiencing a problem with Apache httpd server. There is very high CPU load (about 190%) after starting it. It used to occur sometimes but since the version 2.4.47 it turns up nearly every start. After doing analysis with perf tool it seems that the server is trying to recover from an exception. We managed to get this stacktrace of externall calls from perf:
0x0000000000011547 libgcc_s-4.4.7-20120601.so.1
__GI___dl_iterate_phdr libc-2.14.so
_Unwind_Find_FDE libgcc_s-4.4.7-20120601.so.1
_Unwind_ForcedUnwind libgcc_s-4.4.7-20120601.so.1
__pthread_unwind libpthread-2.12.so
0x0000000000008175 libpthread-2.12.so
0x000000000002daf6 libapr-1.so.0.7.0
worker_thread mod_mpm_event.so
start_thread libpthread-2.12.so
__clone libc-2.14.so
Have you seen this type of problem and do you have some tips to solve it?
Thank you very much!
Best regards,
Jan Knezik
Obsah t?to zpr?vy m? v?lu?n? komunika?n? charakter. Nep?edstavuje n?vrh na uzav?en? smlouvy ?i na jej? zm?nu ani p?ijet? p??padn?ho n?vrhu. Smlouvy ?i jejich zm?ny jsou spole?nost? O2 Czech Republic a.s. uzav?r?ny v p?semn? form? nebo v podob? a postupem podle p??slu?n?ch v?eobecn?ch podm?nek spole?nosti O2 Czech Republic a.s., a pokud jsou dohodnuty v?echny n?le?itosti. Smlouvy jsou uzav?r?ny opr?vn?nou osobou na z?klad? p?semn?ho pov??en?. Smlouvy o smlouv? budouc? jsou uzav?r?ny v?hradn? v p?semn? form?, vlastnoru?n? podepsan? nebo s uzn?van?m elektronick?m podpisem. Podm?nky, za nich? O2 Czech Republic a.s. p?istupuje k jedn?n? o smlouv? a jak?mi se ??d?, jsou dostupn? zde<http://www.o2.cz/spolecnost/transparentnost-pri-vyjednavani-o-smlouve/>.
The content of this message is intended for communication purposes only. It does neither represent any contract proposal, nor its amendment or acceptance of any potential contract proposal. O2 Czech Republic a.s. concludes contracts or amendments thereto in a written form or in the form and the procedure in accordance with relevant general terms and conditions of O2 Czech Republic a.s., if all requirements are agreed. Contracts are concluded by an authorized person entitled on the basis of a written authorization. Contracts on a future contract are concluded solely in a written form, self-signed or signed by means of an advanced electronic signature. The conditions under which O2 Czech Republic a.s. negotiates contracts and under which it proceeds are available here<http://www.o2.cz/spolecnost/en/transparency-in-contract-negotiations/>.
we are experiencing a problem with Apache httpd server. There is very high CPU load (about 190%) after starting it. It used to occur sometimes but since the version 2.4.47 it turns up nearly every start. After doing analysis with perf tool it seems that the server is trying to recover from an exception. We managed to get this stacktrace of externall calls from perf:
0x0000000000011547 libgcc_s-4.4.7-20120601.so.1
__GI___dl_iterate_phdr libc-2.14.so
_Unwind_Find_FDE libgcc_s-4.4.7-20120601.so.1
_Unwind_ForcedUnwind libgcc_s-4.4.7-20120601.so.1
__pthread_unwind libpthread-2.12.so
0x0000000000008175 libpthread-2.12.so
0x000000000002daf6 libapr-1.so.0.7.0
worker_thread mod_mpm_event.so
start_thread libpthread-2.12.so
__clone libc-2.14.so
Have you seen this type of problem and do you have some tips to solve it?
Thank you very much!
Best regards,
Jan Knezik
Obsah t?to zpr?vy m? v?lu?n? komunika?n? charakter. Nep?edstavuje n?vrh na uzav?en? smlouvy ?i na jej? zm?nu ani p?ijet? p??padn?ho n?vrhu. Smlouvy ?i jejich zm?ny jsou spole?nost? O2 Czech Republic a.s. uzav?r?ny v p?semn? form? nebo v podob? a postupem podle p??slu?n?ch v?eobecn?ch podm?nek spole?nosti O2 Czech Republic a.s., a pokud jsou dohodnuty v?echny n?le?itosti. Smlouvy jsou uzav?r?ny opr?vn?nou osobou na z?klad? p?semn?ho pov??en?. Smlouvy o smlouv? budouc? jsou uzav?r?ny v?hradn? v p?semn? form?, vlastnoru?n? podepsan? nebo s uzn?van?m elektronick?m podpisem. Podm?nky, za nich? O2 Czech Republic a.s. p?istupuje k jedn?n? o smlouv? a jak?mi se ??d?, jsou dostupn? zde<http://www.o2.cz/spolecnost/transparentnost-pri-vyjednavani-o-smlouve/>.
The content of this message is intended for communication purposes only. It does neither represent any contract proposal, nor its amendment or acceptance of any potential contract proposal. O2 Czech Republic a.s. concludes contracts or amendments thereto in a written form or in the form and the procedure in accordance with relevant general terms and conditions of O2 Czech Republic a.s., if all requirements are agreed. Contracts are concluded by an authorized person entitled on the basis of a written authorization. Contracts on a future contract are concluded solely in a written form, self-signed or signed by means of an advanced electronic signature. The conditions under which O2 Czech Republic a.s. negotiates contracts and under which it proceeds are available here<http://www.o2.cz/spolecnost/en/transparency-in-contract-negotiations/>.