I am often in Sitecore logs trying to find particular events and can never remember what to search for. This is a list of common log entries.

Package installation

INFO Installing package: <path>
INFO Installing item: <path>
INFO  Updating '7683' items from installed items.
INFO Job ended: Install (units processed: )

Rebuilding indexes

INFO AUDIT (sitecore\admin): Rebuild indexes from Indexing Manager: sitecore_web_index
WARN IndexCustodian. FullRebuild triggered on index sitecore_web_index.
INFO  Job started: Index_Update_IndexName=sitecore_web_index
INFO  [Index=sitecore_web_index] Crawler: Processed 1000 items
...
INFO  [Index=sitecore_web_index] Crawler: Total processed items 2000
INFO  Job ended: Index_Update_IndexName=sitecore_web_index (units processed: 2000)