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11gR2 RAC时间同异常导致节点down掉问题处理

發布時間:2025/3/8 编程问答 26 豆豆
生活随笔 收集整理的這篇文章主要介紹了 11gR2 RAC时间同异常导致节点down掉问题处理 小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

????實驗環境下11204的RAC環境,出現了一個節點DOWN掉的問題。檢查日志信息后,在otcssd日志信息發現如下信息:

2016-01-17 23:15:20.564: [ ? ?CTSS][1175029504]ctsscomm_recv_cb2: Receive incoming message event. Msgtype [3].

2016-01-17 23:15:20.564: [ ? ?CTSS][1175029504]ctsscomm_recv_cb4_2: Receive active version change msg. Old active version [186647552] New active version [186647552].

2016-01-17 23:15:20.564: [ ? ?CTSS][1175029504]ctsscomm_recv_cb2: Receive incoming message event. Msgtype [2].

2016-01-17 23:15:20.564: [ ? ?CTSS][1175029504]ctssslave_msg_handler4_1: Waiting for slave_sync_with_master to finish sync process. sync_state[3].

2016-01-17 23:15:20.564: [ ? ?CTSS][1168725760]ctssslave_swm2_3: Received time sync message from master.

2016-01-17 23:15:20.565: [ ? ?CTSS][1168725760]ctssslave_swm: sendtime{sec[1453043718], usec[550689]}, receivetime{sec[1453043720], usec[564960]}.

2016-01-17 23:15:20.565: [ ? ?CTSS][1168725760]ctssslave_swm: The RTT of sync msg [2014271] is too large for time sync to be accurate. Recommends retry. Returns [17].

2016-01-17 23:15:20.565: [ ? ?CTSS][1168725760]ctssslave_swm: Received from master (mode [0x8c] nodenum [1] hostname [jason1] )

2016-01-17 23:15:20.565: [ ? ?CTSS][1168725760]ctsselect_monitor_steysync_mode: Failed in clsctssslave_sync_with_master [17]. Retries [0/3].?

2016-01-17 23:15:20.565: [ ? ?CTSS][1168725760]ctssslave_swm1_1: Waiting for last time sync process to finish. sync_state[6].

2016-01-17 23:15:20.565: [ ? ?CTSS][1175029504]ctssslave_msg_handler4_3: slave_sync_with_master finished sync process. Exiting clsctssslave_msg_handler

2016-01-17 23:15:20.565: [ ? ?CTSS][1168725760]ctssslave_swm1_2: Ready to initiate new time sync process.

2016-01-17 23:15:20.565: [ ? ?CTSS][1168725760]ctssslave_swm2_1: Waiting for time sync message from master. sync_state[2].

2016-01-17 23:15:20.566: [ ? ?CTSS][1175029504]ctsscomm_recv_cb2: Receive incoming message event. Msgtype [2].

2016-01-17 23:15:20.566: [ ? ?CTSS][1175029504]ctssslave_msg_handler4_1: Waiting for slave_sync_with_master to finish sync process. sync_state[3].

2016-01-17 23:15:20.566: [ ? ?CTSS][1168725760]ctssslave_swm2_3: Received time sync message from master.

2016-01-17 23:15:20.566: [ ? ?CTSS][1168725760]ctssslave_swm: The magnitude [733548803120 usec] of the offset [733548803120 usec] is larger than [86400000000 usec] sec which is the CTSS limit

.

2016-01-17 23:15:20.566: [ ? ?CTSS][1168725760]ctsselect_monitor_steysync_mode: Failed in clsctssslave_sync_with_master [12]: Time offset is too much to be corrected

2016-01-17 23:15:20.566: [ ? ?CTSS][1175029504]ctssslave_msg_handler4_3: slave_sync_with_master finished sync process. Exiting clsctssslave_msg_handler

2016-01-17 23:15:21.287: [ ? ?CTSS][1190360832]ctss_checkcb: clsdm requested check alive. checkcb_data{mode[0xd0], offset[733548803 ms]}, length=[8].

2016-01-17 23:15:21.287: [ ? ?CTSS][1168725760]ctsselect_monitor_steysync_mode: CTSS daemon exiting [12].

2016-01-17 23:15:21.287: [ ? ?CTSS][1168725760]CTSS daemon aborting

2016-01-17 23:15:22.290: [ ? ?CTSS][1190360832]ctss_checkcb: clsdm requested check alive. checkcb_data{mode[0xd0], offset[733548803 ms]}, length=[8].

查看兩臺服務器時間如下:

jason1:~ # date

Sat Jan ?9 11:37:18 CST 2016

jason2:~ # date date

Sun Jan 17 23:23:12 CST 2016

兩臺服務器時間相差8天,Oracle的時間調整限制是1天。時間相差8天,遠遠超過Oracle時間同步服務允許的最大限制。因此其中一個節點被踢出了CLUSTER,由于時間同步的問題,導致了節點重啟后試圖再次加入到集群中報錯。因此調整兩臺服務器時間一致,就可以解決節點DOWN的問題。首先關閉集群,然將兩節點時間調整當前時間保持一致,再次啟動集群或者重新啟動兩臺服務器,問題解決。

參考:http://blog.itpub.net/4227/viewspace-695164/

轉載于:https://blog.51cto.com/369day/1737280

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