测试环境。集群为obd白屏方式部署。4.2版本。准备增加一个zone4并增加节点：
/home/admin/oceanbase/bin/observer -I 172.16.210.90 -P 2882 -p 2881 -z zone4 -d /app/oceanbase/store -r ‘172.16.210.107:2882:2881;172.16.210.108:2882:2881;172.16.210.109:2882:2881’ -c 1 -n gqoceanbase -o “system_memory=8GB,max_syslog_file_count=4,datafile_size=80G,datafile_maxsize=120G,memory_limit=16G,log_disk_size=30G,enable_syslog_recycle=True,config_additional_dir=/app/oceanbase/etc3;/data/oceanbase/etc2”

2023-09-14 17:43:35.380355] INFO [SERVER] destroy (ob_server.cpp:706) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=10] OB_PRIMARY_STANDBY_SERVICE destroyed
[2023-09-14 17:43:35.380363] INFO [SERVER] destroy (ob_server.cpp:708) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=7] begin to destroy rootservice event history
[2023-09-14 17:43:35.380375] INFO [SERVER] destroy (ob_server.cpp:710) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=7] rootservice event history destroyed
[2023-09-14 17:43:35.380383] INFO [SERVER] destroy (ob_server.cpp:712) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=8] begin to destroy kv global cache
[2023-09-14 17:43:35.380458] INFO [SERVER] destroy (ob_server.cpp:714) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=22] kv global cache destroyed
[2023-09-14 17:43:35.380476] INFO [SERVER] destroy (ob_server.cpp:716) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=15] begin to destroy clock generator
[2023-09-14 17:43:35.380484] INFO [SERVER] destroy (ob_server.cpp:718) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=8] clock generator destroyed
[2023-09-14 17:43:35.380500] INFO [SERVER] destroy (ob_server.cpp:722) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=15] [OBSERVER_NOTICE] destroy observer end
[2023-09-14 17:43:35.380514] ERROR issue_dba_error (ob_log.cpp:1802) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=8][errcode=-4388] Unexpected internal error happen, please checkout the internal errcode(errcode=-9100, file=“ob_server.cpp”, line_no=452, info="[OBSERVER_NOTICE] fail to init observer")
[2023-09-14 17:43:35.380540] EDIAG [SERVER] init (ob_server.cpp:452) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=25][errcode=-9100] [OBSERVER_NOTICE] fail to init observer(ret=-9100, ret=“OB_NO_SUCH_FILE_OR_DIRECTORY”) BACKTRACE:0x1061068c 0x10207d58 0x64caa08 0x64ca656 0x64ca468 0x64ac736 0x91ab77a 0x919e408 0x64a0994 0x7fce3e23a555 0x495583f
[2023-09-14 17:43:35.380646] ERROR init (ob_server.cpp:453) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=101][errcode=-4393] observer start process failure(msg=“observer init() has failure”, ret=-9100, ret=“OB_NO_SUCH_FILE_OR_DIRECTORY”)
[2023-09-14 17:43:35.380674] ERROR issue_dba_error (ob_log.cpp:1802) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=26][errcode=-4388] Unexpected internal error happen, please checkout the internal errcode(errcode=-9100, file=“main.cpp”, line_no=582, info=“observer init fail”)
[2023-09-14 17:43:35.380690] EDIAG [SERVER] main (main.cpp:582) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=15][errcode=-9100] observer init fail(ret=-9100) BACKTRACE:0x1061068c 0x10207d58 0x64a69c4 0x64a668b 0x64a6384 0x649f4d1 0x64a1a6d 0x64a0cdc 0x7fce3e23a555 0x495583f
============= [BEFORE_DESTROY] begin to show unstopped thread =============
[BEFORE_DESTROY] detect unstopped thread, tid: 3285, name: observer
============= [BEFORE_DESTROY] finish to show unstopped thread =============
[2023-09-14 17:43:35.380962] INFO [SERVER] destroy (ob_server.cpp:473) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=121] [OBSERVER_NOTICE] destroy observer begin
[2023-09-14 17:43:35.380974] INFO [SERVER] destroy (ob_server.cpp:475) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=12] begin to destroy config manager
[2023-09-14 17:43:35.380982] INFO [SERVER] destroy (ob_server.cpp:477) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=8] destroy config manager success
[2023-09-14 17:43:35.381968] INFO [SERVER] main (main.cpp:595) [3285][observer][T0][Y0-0000000000000000-0-0] [lt=7] observer exits(observer_version=“OceanBase_CE 4.2.0.0”)
============= [AFTER_DESTROY] begin to show unstopped thread =============
[AFTER_DESTROY] detect unstopped thread, tid: 3285, name: observer
============= [AFTER_DESTROY] finish to show unstopped thread =============