Hi All, I'm working on a project using the simple pjsip interface. The basic function is to act as a redirect server. Everything works well until I get to about 250 CPS. At that point, I start getting timeouts for a few of the INVITEs, and the endpoint pool starts growing, specifically, the udp and ua pools: before: 10/19/10 08:55:13.134 17075:17077 sip_endpoint.c pjsip_endpt_dump() 10/19/10 08:55:13.134 17075:17077 sip_endpoint.c Dumping endpoint 0x8a44b6c: 10/19/10 08:55:13.134 17075:17077 cachpool Dumping caching pool: 10/19/10 08:55:13.134 17075:17077 cachpool Capacity=0, max_capacity=0, used_cnt=6 10/19/10 08:55:13.134 17075:17077 cachpool Dumping all active pools: 10/19/10 08:55:13.134 17075:17077 cachpool pept0x8a44b08: 46564 of 48096 (96%) used 10/19/10 08:55:13.134 17075:17077 cachpool udp0x8a50b50: 760 of 1024 (74%) used 10/19/10 08:55:13.134 17075:17077 cachpool rtd0x8a50f60: 6976 of 12096 (57%) used 10/19/10 08:55:13.134 17075:17077 cachpool tsxlayer: 4332 of 5120 (84%) used 10/19/10 08:55:13.134 17075:17077 cachpool ua0x8a552c0: 2320 of 3072 (75%) used 10/19/10 08:55:13.134 17075:17077 cachpool evsub: 780 of 1024 (76%) used 10/19/10 08:55:13.134 17075:17077 cachpool Total 61732 of 70432 (87 %) used! 10/19/10 08:55:13.134 17075:17077 sip_endpoint.c Endpoint pool capacity=48096, used_size=46564 after 1641 failed calls: 10/19/10 08:57:48.527 17075:17077 sip_endpoint.c pjsip_endpt_dump() 10/19/10 08:57:48.527 17075:17077 sip_endpoint.c Dumping endpoint 0x8a44b6c: 10/19/10 08:57:48.527 17075:17077 cachpool Dumping caching pool: 10/19/10 08:57:48.527 17075:17077 cachpool Capacity=0, max_capacity=0, used_cnt=6 10/19/10 08:57:48.527 17075:17077 cachpool Dumping all active pools: 10/19/10 08:57:48.527 17075:17077 cachpool pept0x8a44b08: 46564 of 48096 (96%) used 10/19/10 08:57:48.528 17075:17077 cachpool udp0x8a50b50: 12100 of 12800 (94%) used <-- grew 10/19/10 08:57:48.528 17075:17077 cachpool rtd0x8a50f60: 6976 of 12096 (57%) used 10/19/10 08:57:48.528 17075:17077 cachpool tsxlayer: 4332 of 5120 (84%) used 10/19/10 08:57:48.528 17075:17077 cachpool ua0x8a552c0: 27152 of 28672 (94%) used <-- grew 10/19/10 08:57:48.528 17075:17077 cachpool evsub: 780 of 1024 (76%) used 10/19/10 08:57:48.528 17075:17077 cachpool Total 97904 of 107808 (90 %) used! 10/19/10 08:57:48.528 17075:17077 sip_endpoint.c Endpoint pool capacity=48096, used_size=46564 A few more clues: 1) When the timeouts occur, I see the INVITE is retransmitted 4 times, but my application never receives notification. 2) The Call-ID of a missing INVITE never shows up in my application or the pjsip logs. 3) Other calls complete successfully during the time some are timing out. 4) Traffic is generated using SIPp. 5) The memory leak will grow to the point that the system becomes sluggish and all calls fail. 6) I'm using pjlb version 1.8, but have also verified this behavior with version 1.3. 7) This is a linux system. 8) I don't see anything that look like error messages or warnings in the pjsip log. My assumption is that the 1st INVITE has been passed to my on_rx_request() callback function, but something (race condition?) prevents it from being passed to my application. The library then ignores the retransmitted INVITEs because it thinks the first one is already being handled. Any suggestions for sorting this out would be greatly appreciated. Thanks, --Mike
