diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml index 0baebb3c09..5a566b25c3 100644 --- a/doc/src/sgml/wal.sgml +++ b/doc/src/sgml/wal.sgml @@ -1,4 +1,4 @@ - + Write-Ahead Logging (<acronym>WAL</acronym>) @@ -302,10 +302,10 @@ - The number of 16MB segment files will always be at least - 1, and will normally not exceed CHECKPOINT_SEGMENTS) - + 1. This may be used to estimate space requirements for WAL. - Ordinarily, when old log segment files are no longer needed, + There will be at least one 16MB segment file, and will normally + not be more than CHECKPOINT_SEGMENTS) + + 1 files. You can use this to estimate space requirements for + WAL. Ordinarily, when old log segment files are no longer needed, they are recycled (renamed to become the next sequential future segments). If, due to a short-term peak of log output rate, there are more than CHECKPOINT_SEGMENTS) + 1 segment files,