Hi all ,
Integrating ISE with FMC didn't go well , checking logs we see that "getSessionListByTime" return " Couldn't resolve host name at file build/gcl/src/pxgrid_bulkdownload_curl.c line 240 " .
Logs :
Oct 13 10:44:06 firepower SF-IMS[22203]: [22210] ADI_ISE_Test_Help:adi.ISEConnection [INFO] Captured Jabberwerx log:2017-10-13T10:44:06 [ INFO]: curl_easy_setopt() for CURLOPT_URL: 'https://ISE-1.cn.aura:8910/pxgrid/mnt/sd/getSessionListByTime'
Oct 13 10:44:06 firepower SF-IMS[22203]: [22210] ADI_ISE_Test_Help:adi.ISEConnection [INFO] Captured Jabberwerx log:2017-10-13T10:44:06 [ ERROR]: curl_easy_perform() failed: (6) Couldn't resolve host name at file build/gcl/src/pxgrid_bulkdownload_curl.c line 240
Oct 13 10:44:06 firepower SF-IMS[22203]: [22203] ADI_ISE_Test_Help:adi.ISEConnection [ERROR] bulk download iter next failed REST errorCouldn't resolve host name
Oct 13 10:44:06 firepower SF-IMS[22203]: [22211] ADI_ISE_Test_Help:adi.ISEConnection [INFO] Captured Jabberwerx log:2017-10-13T10:44:06 [ INFO]: curl_easy_setopt() for CURLOPT_URL: 'https://ISE-2.cn.aura:8910/pxgrid/mnt/sd/getSessionListByTime'
Oct 13 10:44:06 firepower SF-IMS[22203]: [22211] ADI_ISE_Test_Help:adi.ISEConnection [INFO] Captured Jabberwerx log:2017-10-13T10:44:06 [ ERROR]: curl_easy_perform() failed: (6) Couldn't resolve host name at file build/gcl/src/pxgrid_bulkdownload_curl.c line 240
Oct 13 10:44:06 firepower SF-IMS[22203]: [22203] ADI_ISE_Test_Help:adi.ISEConnection [ERROR] bulk download iter next failed REST errorCouldn't resolve host name
Oct 13 10:44:06 firepower SF-IMS[22203]: [22203] ADI_ISE_Test_Help:adi.DirectoryTestHandler [ERROR] Failed to validate bulk download.
Oct 13 10:44:06 firepower SF-IMS[22203]: [22203] ADI_ISE_Test_Help:adi.ISEConnection [INFO] disconnecting pxgrid
it looks like a Dns resolving issue but it is not , FMC resolve ISEs hostname .
attached the detailed log file .
Thanks for your Help . 
