Hello! Yesterday I put a new DSpace 7.6 server to production. And unfortunately there are some weird problems. 1. Often the server response time is very high, like 4-6s. But the server load is about 1.5, one process (node /home/dspa) has 100-150% load. Also iotop shows no significant load (less than 100-300K/s, mostly 0 at all). 2. Sometimes red error boxes pop like *0 Http failure response for /server/api/core/bundles/c6beb8dd-b676-4099-8b3e-e382addabe9a/bitstreams?page=0&size=5: 0 Unknown Error*. Also error page 502 is frequent. 3. Apache error log has something like
*[Mon Nov 13 16:17:32.347870 2023] [proxy:error] [pid 1724:tid 140175577442048] [client 87.250.224.227:64062] AH00898: Error reading from remote server returned by /bitstream/123456789/3767/1/Prioritetni sotsial\xca\xb9ni spozhyvy.pdf[Mon Nov 13 16:17:35.984410 2023] [proxy_http:error] [pid 1864:tid 140176072349440] (104)Connection reset by peer: [client 47.128.18.32:52936] AH01102: error reading status line from remote server localhost:4000* *[Mon Nov 13 00:23:50.983739 2023] [proxy_http:error] [pid 10447:tid 139668360255232] (104)Connection reset by peer: [client 185.191.171.19:54166] AH01102: error reading status line from remote server localhost:4000[Mon Nov 13 00:23:50.983789 2023] [proxy:error] [pid 10447:tid 139668360255232] [client 185.191.171.19:54166] AH00898: Error reading from remote server returned by /handle/123456789/1345/simple-search[Mon Nov 13 00:26:13.310238 2023] [proxy_http:error] [pid 10447:tid 139667739490048] (104)Connection reset by peer: [client 47.128.52.192:41852] AH01102: error reading status line from remote server localhost:4000, referer: /st>[Mon Nov 13 00:26:13.310299 2023] [proxy:error] [pid 10447:tid 139667739490048] [client 47.128.52.192:41852] AH00898: Error reading from remote server returned by /assets/images/logo.png, referer: /statistics/items/b991c0e>[Mon Nov 13 00:28:08.645601 2023] [proxy_http:error] [pid 10447:tid 139668493174528] (70007)The timeout specified has expired: [client 52.167.144.216:43793] AH01102: error reading status line from remote server localhost:4000* 4. Dspace log is unavailable! The last logged time is yesterday evening. Since then there's no log. I have not changed any log settings. I followed https://wiki.lyrasis.org/display/DSDOC7x/Performance+Tuning+DSpace pretty thoroughly. The DSpace server is on the VDS and it works through apache proxy (for https). This is very disappointing. The old server worked lke a charm, always instant response. Please help me trace the source of errors. WBR, Andrew PS: That said, once the page has loaded, clicking the links like statistics always has instant responce (cache?). But opening links in another tab takes forever, or fails -- All messages to this mailing list should adhere to the Code of Conduct: https://www.lyrasis.org/about/Pages/Code-of-Conduct.aspx --- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-tech/9714aa57-bcad-477d-89d2-afbecab0d954n%40googlegroups.com.
