Druid timed out getting connection

druid timed out getting database connection

the system recently threw a druid to get the database connection timed out, but took a look at the log, the poolingCount=0,activeCount=1. at that time But maxActiveCount=100, is very strange, do not know much about druid, idle connections is 0, survival is 1, far from reaching the maximum number of connections. What about the database connection?

Sep.06,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1ead3ff-47f16.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ead3ff-47f16.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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