Am 16.05.2013 13:31, schrieb Ilya Kazakevich: >> hwo would a innodb_buffer_pool larger than the whole database make >> anything better? the best value is as large as the expected dataset, more is >> wasting system ressources > > You also may need space for adaptive indexes, locks etc so it is recommended > to have pool size about 110% of your data.
yes but that is far away from 4 GB as a reply to "du -h /mysql/ibdata1 1.8G /mysql/ibdata1" which never got shrinked even if your real data are only half of it after deletions 60-70% of RAM is a naive not to say dumb reccomendation, especially in times where a ordinary workstation has 16 GB memory and it will bring you no benefit while it may lead in troubles if whatever process allocates a huge amount of memory sooner or later and the system starts to swap or OOM killer get in action and is killing your mysqld as first process
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