在postgres中创建的WAL存档文件过多
[英]Too many WAL archive file created in postgres
问题描述
I have configured file base - log shipping replication in postgreSql 9.4. 
我已经配置了文件库-PostgreSQL 9.4中的日志传送复制。 I have default checkpint after every 5min and WAL size of 16mb. 每隔5分钟和16 MB的WAL大小，我将使用默认的checkpint。 However, postgreSql send 16mb of file after every 1sec. 但是，postgreSql每1秒发送一次16mb的文件。 Is this normal? 这正常吗？ I feel it's too much of network traffic. 我觉得网络流量太多了。 Is there a way to improve this apart from zipping logs? 除了压缩日志外，还有什么方法可以改善此问题？ How could I control log shipping frequency ? 如何控制原木的运输频率？ Thanks in advance ! 提前致谢 ！
sent 16779372 bytes received 31 bytes 11186268.67 bytes/sec
total size is 16777216 speedup is 1.00
sending incremental file list
000000010000002D00000065
sent 16779372 bytes received 31 bytes 11186268.67 bytes/sec
total size is 16777216 speedup is 1.00
sending incremental file list
000000010000002D00000066
1 个解决方案
解决方案1
0 2015-08-20 12:23:38
I realized that archive_timeout was set to 10 sec. 我意识到将archive_timeout设置为10秒。 Hence it was creating too many WAL file copies. 因此，它创建了太多的WAL文件副本。 I just updated it to archive_timeout = 60 to make sure that it would archive WAL segment only after 1 min. 我刚刚将其更新为archive_timeout = 60，以确保仅在1分钟后才将WAL段存档。
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