On Wed, Jun 6, 2018 at 6:11 PM, Mich Talebzadeh <mich.talebza...@gmail.com> wrote: > > > so the region server started OK but then I had a problem with master :( > > java.lang.IllegalStateException: The procedure WAL relies on the ability to > hsync for proper operation during component failures, but the underlying > filesystem does not support doing so. Please check the config value of > 'hbase.procedure.store.wal.use.hsync' to set the desired level of > robustness and ensure the config value of 'hbase.wal.dir' points to a > FileSystem mount that can provide it. >
This error means that you're running on top of a Filesystem that doesn't provide sync. Are you using HDFS? What version?
