Celery以100％的CPU使用率挂起

Question

我正在使用Amazon SQS运行Celery。在celery任务中，任务是使用Python requests库向服务器发送put请求。

成功运行第一个请求的任务后，Celery将以100％的CPU使用率挂起。

我正在使用Celery 4.0.2和Kombu 4.0.0

悬挂式pid的Strace Dump是 - ＆gt;＆gt;

futex(0x999104, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x999100, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x999140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x999104, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x999100, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x999140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x999104, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x999100, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x999140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x999104, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x999100, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x999140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x999104, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x999100, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x999140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x999104, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x999100, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x999140, FUTEX_WAKE_PRIVATE, 1) = 1