RSS does not apply logs

hello, I have the following situation. I would be very pleased if somebody could put a light into this. Thanks a lot, JUAN Primary: amc1_rss RSS server: amc4_rss RSS DeLAY_APPLY 5M Why does RSS secondary not apply logs up to 116024, having long past the 5 minutes delay configured? Note that ACKed Log: 116024 Applied Log: 115941, logs in between are all at LOG_STAGING_DIR directory.Start Log position remains the same (115941 0x5b65278), at both timestamps 00:17:02 and 11:14:14 onstat info: ------------ On the primary: root@amcdb1:~# onstat -g cluster IBM Informix Dynamic Server Version 12.10.FC6 -- On-Line (Prim) -- Up 7 days 16:24:14 -- 14906368 Kbytes Primary Server:amc1_rss Current Log Page:116024,10190 Index page logging status: Enabled Index page logging was enabled at: 2013/10/14 14:17:18 Server ACKed Log Applied Log Supports Status (log, page) (log, page) Updates amc5_tcp 116024,10190 116024,10190 No ASYNC(HDR),Connected,On amc4_rss 116024,10190 115941,30719 No ASYNC(RSS),Connected,Active -------------------------------------------------------- On rss secondary: root@amcdb4 # onstat -g cluster verbose IBM Informix Dynamic Server Version 12.10.FC6 -- Read-Only (RSS) -- Up 09:03:05 -- 2199552 Kbytes RSS Server control block: 0x110931a78 Local server type: RSS Server Status : Active Source server name: amc1_rss Connection status: Connected Last log page received(log id,page): 115942,1791 Sequence number of last buffer received: 4336 Sequence number of last buffer acked: 4336 Delay Apply: Configured (5) Stop Apply: Not configured. Delay or Stop Apply control block: 0x110907f38 Pending pages: 94059 Last page written: (116023:3690). Next page to read: (115942:1792). Delay or Stop Apply thread: Running. ----------------------------------------------------------- server name: amc4_rss type: ASYNC (RSS) control block: 0x19d519e40 server status: Active connection status: Connected Last log page sent (log id, page): 116024,10318 Last log page acked (log id, page): 116024,10318 Approximate log page backlog: 0 SDS cycle not used Delayed Apply Set To: 5M Stop Apply Not Used Time of last ack: 2017/11/27 09:37:15 Supports Updates: No -------------------------------------------------------------- onstat -m (on the secondary timestamp 11/27/17 00:16:55) root@amcdb4 # onstat -m IBM Informix Dynamic Server Version 12.10.FC6 -- Read-Only (RSS) -- Up 09:18:02 -- 2199552 Kbytes Message Log File: /u0/informix/LOGS/online.log11/27/17 00:16:55 B-tree scanner index compression level set to med. 11/27/17 00:16:55 Physical Recovery Started at Page (4:48106). 11/27/17 00:16:56 Physical Recovery Complete: 9685 Pages Examined, 9685 Pages Restored. 11/27/17 00:17:02 smx creates 3 transports to server amc1_rss 11/27/17 00:17:02 Peer node amc1_rss has version 65538 11/27/17 00:17:02 RSS Server amc1_rss - state is now connected 11/27/17 00:17:02 setting version information for amc1_rss 65538 11/27/17 00:17:02 Dataskip is now OFF for all dbspaces 11/27/17 00:17:02 Restartable Restore has been ENABLED 11/27/17 00:17:02 Recovery Mode 11/27/17 00:17:02 Logical Recovery Started. 11/27/17 00:17:02 10 recovery worker threads will be started. 11/27/17 00:17:02 Start Logical Recovery - Start Log 115938, End Log ? 11/27/17 00:17:02 Starting Log Position - 115941 0x5b65278 11/27/17 00:17:02 B-tree scanners disabled. 11/27/17 00:17:03 DR: RSS secondary server operational 11/27/17 00:17:03 Secondary Delay or Stop Apply: Using the directory /u0/informix/logstg/ifmxlog_4. 11/27/17 00:17:03 A Request to reset the log position to 116019:0 was sent to the primary server. 11/27/17 00:17:05 Started processing open transactions on secondary during startup 11/27/17 00:17:05 Finished processing open transactions on secondary during startup. ------------------------------------------------------------------ onstat -m (on the secondary timestamp: 11/27/17 11:14:12) root@amcdb4 # onstat -m IBM Informix Dynamic Server Version 12.10.FC6 -- Read-Only (RSS) -- Up 01:38:40 -- 2199552 Kbytes Message Log File: /u0/informix/LOGS/online.log 11/27/17 11:14:12 B-tree scanner range scan size set to -1. 11/27/17 11:14:12 B-tree scanner ALICE mode set to 6.11/27/17 11:14:12 B-tree scanner index compression level set to med. 11/27/17 11:14:12 Physical Recovery Started at Page (4:48106). 11/27/17 11:14:12 Physical Recovery Complete: 9685 Pages Examined, 9685 Pages Restored. 11/27/17 11:14:13 smx creates 3 transports to server amc1_rss 11/27/17 11:14:14 Peer node amc1_rss has version 65538 11/27/17 11:14:14 RSS Server amc1_rss - state is now connected 11/27/17 11:14:14 setting version information for amc1_rss 65538 11/27/17 11:14:14 Dataskip is now OFF for all dbspaces 11/27/17 11:14:14 Restartable Restore has been ENABLED 11/27/17 11:14:14 Recovery Mode 11/27/17 11:14:14 Logical Recovery Started. 11/27/17 11:14:14 10 recovery worker threads will be started. 11/27/17 11:14:14 Start Logical Recovery - Start Log 115938, End Log ? 11/27/17 11:14:14 Starting Log Position - 115941 0x5b65278 11/27/17 11:14:14 B-tree scanners disabled. 11/27/17 11:14:15 DR: RSS secondary server operational 11/27/17 11:14:32 Started processing open transactions on secondary during startup 11/27/17 11:14:32 Finished processing open transactions on secondary during startup.