Examples of com.sleepycat.je.Environment.sync()

com.sleepycat.je.Environment.sync()

Synchronously flushes database environment databases to stable storage. Calling this method is equivalent to forcing a checkpoint and setting {@link CheckpointConfig#setMinimizeRecoveryTime} to true.

A checkpoint has the side effect of flushing all preceding non-transactional write operations, as well as any preceding transactions that were committed with {@link Durability.SyncPolicy#NO_SYNC no-sync durability}. However, for best performance, checkpoints should be used only to bound recovery time. {@link #flushLog} can be used to write buffered data for durabilitypurposes. @throws EnvironmentFailureException if an unexpected, internal orenvironment-wide failure occurs. @throws IllegalStateException if this handle or the underlyingenvironment has been closed.

                System.out.println("Cleaned " + cleaned + " files.");
            CheckpointConfig cp = new CheckpointConfig();
            cp.setForce(true);
            environment.checkpoint(null);
            environment.compress();
            environment.sync();
            System.out.println("Cleaning, Checkpointing and compression completed.");
        }


        System.out.println();
        System.out.println("iteration read write:");

        envConfig.setAllowCreate(true);
        Environment env = new Environment(envHome, envConfig);


        try {
            /* Make an environment. */
            env.sync();


            /* Add an extra, 0 length file */
            EnvironmentImpl envImpl = DbInternal.envGetEnvironmentImpl(env);


            File newFile = new File(envHome, "00000001.jdb");

        EnvironmentConfig envConfig = TestUtils.initEnvConfig();
        envConfig.setAllowCreate(false);
        envConfig.setTransactional(true);


        Environment env = new Environment(envHome, envConfig);
        env.sync();
        env.close();


        assertEquals(origFileSize, logFile.length());
    }
}

        }
        if (env != null) {
            try {
                // This sync flushes whats in RAM. Its expensive operation.
                // Without, data can be lost. Not for transactional operation.
                env.sync();
            } catch (DatabaseException e) {
                logger.severe(e.getMessage());
            }
        }

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