OceanBase 数据库 V4.x 版本使用二合一协议时偶发断链报错 unexpected end of stream, read 0 bytes from 4 的原因和解决方法

errcode=-4016] fail to do proto20 packet encode、errcode=-4016] invalid easy buffer
[2024-06-06 21:07:17.620236] EDIAG [RPC.OBMYSQL] do_proto20_packet_encode (ob_2_0_protocol_utils.cpp:154) [378690][T1012_L0_G0][T1012][xxxxx-xxxxx-xxxxx-xxxxx] [lt=14][errcode=-4016] invalid easy buffer(easy_buffer={read_pos:0xfb100ccb5c381a06, buf_.pos:0xfb100ccb5c381a06, buf_.last:0x91a8597c5b1495, buf_.end:0x7fc365a97588, orig_buf_size:355910780198148994, orig_data_size:396769276912138895, read_avail_size:396769276912138895, write_avail_size:-40858496713989901}, ret=-4016) BACKTRACE:0x12612235 0x7423677 0x7423244 0x7422ed2 0x7402d8b 0x136b8b15 0x518ec90 0x518d216 0x518c52d 0x52e9d7b 0xa13fcfe 0xa1babaa 0xa1bed39 0xa1bbaa8 0xa1c2e1a 0xa1c6e0d 0x515f995 0x515ad2e 0xa05eb94 0x12c97923 0x7ff573422e25 0x7ff57315034d
[2024-06-06 21:07:17.620387] EDIAG [RPC.OBMYSQL] do_packet_encode (ob_2_0_protocol_utils.cpp:95) [378690][T1012_L0_G0][T1012][xxxxx-xxxxx-xxxxx-xxxxx] [lt=7][errcode=-4016] fail to do proto20 packet encode(param={proto20_context:0x7fe6fda040f0, req:0x7ff0b5da8ec0, ez_buf:0x7fc365a94138, pkt:0x7fbbe9ccfce8, seri_size:0, conn_id:3221634483, encode_ret:0, need_flush:false, is_last:false, is_pkt_encoded:false, large_pkt_buf:null, large_pkt_buf_len:0, large_pkt_buf_pos:0, extra_info_kvs:0x7fe6fda04150}, ret=-4016) BACKTRACE:0x12612235 0x7423677 0x7423244 0x7422ed2 0x7402d8b 0x136938af 0x518e19e 0x518d216 0x518c52d 0x52e9d7b 0xa13fcfe 0xa1babaa 0xa1bed39 0xa1bbaa8 0xa1c2e1a 0xa1c6e0d 0x515f995 0x515ad2e 0xa05eb94 0x12c97923 0x7ff573422e25 0x7ff57315034d