RocketMq exception: service not available now. It may be caused by one of the following reasons: the broker's disk is full [CL: 0.31 CQ: 0.31 INDEX: 0.31], messages are put to the slave, message store has been shut down, etc.

Sep 9, 2023277

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This exception occurs mainly due to insufficient disk space for message storage. Two main operations can be performed to resolve this issue: 1. Modify the disk space warning ratio to ensure that the disk usage exceeds 99% before an error is reported. The fundamental solution is to ensure that the disk space never exceeds 90%. 2. Change the message storage address to a disk with more remaining space.

The main cause of this exception is insufficient disk space for message storage. In this case, you can perform the following two operations:

Modify the disk space warning ratio
Add set "JAVA_OPT=%JAVA_OPT% -server -Xms512m -Xmx512m -Xmn128m -Drocketmq.broker.diskSpaceWarningLevelRatio=0.99" to the runbroker.cmd file to trigger an error only when disk usage exceeds 99%. The fundamental solution is to ensure that disk space never exceeds 90%.
Change the storage location of messages to a disk with more available space
Add set "JAVA_OPT=%JAVA_OPT% -Duser.home=D:/mqs/rocket-mq" to the runbroker.cmd file.