couchbase.exceptions._TemporaryFailError_0xB

When I run multiprocessing to load data from Oracle to CB randomly I am ending with this below temporary errors ?
where can I find the issue details ?

Process Process-571:
couchbase.exceptions._TemporaryFailError_0xB (generated, catch TemporaryFailError): <Key=‘1321711056345’, RC=0xB[Temporary failure received from server. Try again later], Operational Error, Results=1, C Source=(src/multiresult.c,316), Tracing Output={“1321711056345”: {“s”: “kv:Unknown”, “c”: “00000000d04739a3/f7fedea75db444cc”, “i”: 3945738325812356464, “b”: “TEST_B”, “l”: “10.42.8.99:50332”, “r”: “10.80.xxx.xxx:31294”, “t”: 2500000}}>
couchbase.exceptions._TemporaryFailError_0xB (generated, catch TemporaryFailError): <Key=‘1308051042153’, RC=0xB[Temporary failure received from server. Try again later], Operational Error, Results=1, C Source=(src/multiresult.c,316), Tracing Output={“1308051042153”: {“s”: “kv:Unknown”, “c”: “00000000d04739a3/92c93053e10e89e8”, “i”: 381361887517552100, “b”: “TEST_B”, “l”: “10.42.8.99:50724”, “r”: “10.80.xxx.xxx:31294”, “t”: 2500000}}>
File “/opt/conda/lib/python3.7/multiprocessing/process.py”, line 297, in _bootstrap
self.run()