private void assertInitialization(String namespace) {
        if (!schemaChangeLogService.isAvailable(namespace)) {
            String tableName = schemaChangeLogService.getTableName();
            throw new IllegalStateException(tableName + " table not found. Initialization required.");
        }
    }
This implementation uses the executed schema change logs to compare against the specified {@code changeSets} to
check the current schema status, regardless of how the actual schema looks like.
hbase/hbase-schema/src/main/java/com/navercorp/pinpoint/hbase/schema/service/HbaseSchemaServiceImpl.java