Nov 19, 2018
log buffer space. Wait for space in the redo log buffer in SGA. Solution. Increase log_buffer parameter in init.ora. Above 3M log_buffer little affect, if still a problem then backup is at disk level. Improve disk IO for redo. Faster disk. Raw file. Direct IO. Dedicated disk. buffer space has too many data on dedicated FLUENTD
Jan 05, 2016
Log Cache Page size - social.msdn.microsoft.com Sep 15, 2010 Monitoring the Redo Log Buffer (Oracle) (SAP Library Allocation retries shows the number of failed attempts to allocate space in the redo log buffer. A value greater than zero normally indicates that the Oracle log writer process (LGWR) could not write redo entries from the buffer to disk (in the online redo log files) immediately, but had to wait for a redo log file switch to perform this action.
The initialization parameter log_buffer determines the size of the redo log buffer. The default is set to four times the maximum data block size for the host operating system. How Oracle Allocates Space in the Redo Log Buffer. As each user session makes changes to the database, these changes are first recorded in the redo log buffer.
Optimal size - Oracle log_buffer sizing Apr 03, 2015 Solved: Logging buffer size - Cisco Community Oct 11, 2013