Examples of org.rocksdb.WriteOptions.sync()

org.rocksdb.WriteOptions.sync()

If true, the write will be flushed from the operating system buffer cache (by calling WritableFile::Sync()) before the write is considered complete. If this flag is true, writes will be slower. If this flag is false, and the machine crashes, some recent writes may be lost. Note that if it is just the process that crashes (i.e., the machine does not reboot), no writes will be lost even if sync==false. In other words, a DB write with sync==false has similar crash semantics as the "write()" system call. A DB write with sync==true has similar crash semantics to a "write()" system call followed by "fdatasync()". @return boolean value indicating if sync is active.

    writeOptions.setDisableWAL(true);
    assertThat(writeOptions.disableWAL()).isTrue();
    writeOptions.setDisableWAL(false);
    assertThat(writeOptions.disableWAL()).isFalse();
    writeOptions.setSync(true);
    assertThat(writeOptions.sync()).isTrue();
    writeOptions.setSync(false);
    assertThat(writeOptions.sync()).isFalse();
  }
}

    writeOptions.setDisableWAL(false);
    assertThat(writeOptions.disableWAL()).isFalse();
    writeOptions.setSync(true);
    assertThat(writeOptions.sync()).isTrue();
    writeOptions.setSync(false);
    assertThat(writeOptions.sync()).isFalse();
  }
}

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