Live Migration Research Articles

A flexible approach for virtual machine selection in cloud data centers with AHP

AbstractIncreasing resource efficiency and reducing the energy consumption of cloud data centers is critical, especially during the global CORONA virus pandemic. Virtual machines' consolidation using live migration maximizes the hosts' and the reduction of energy consumption. An increase in the host's virtual machines in the consolidation process and the dynamic workload of the virtual machines may cause the overloading in the hosts. One approach to overcome this problem is reducing the hosts' virtual machines. One crucial issue to improve the quality of the consolidation process's quality is determining the best virtual machine for the migration process. Although the selection process has lower computational complexity than other challenges (like placement and overload prediction) in the consolidation process, this issue has received less attention. This article aims to present an efficient algorithm for the selection process. We first considered five main criteria for the selection process: migration time, migration risk, virtual machine connectivity, releasable resources, and penalty for SLA violation. Then, we propose an algorithm based on analytic hierarchy process multi‐criteria decision‐making technique. Next, to determine the weight of the proposed criteria, we simulate thousands of virtual machines of the PlanetLab workloads. These weights are tunable based on the data center preferences. The results of the suggested approach results show 23% reduction in the hosts' energy consumption, 49% reduction in the number of migrations, and 18% reduction in the SLA violation compared with other techniques. So, using the proposed method may significantly reduce the overall cost of the data centers.

THE ADAPTIVE CAPACITY OF YOUNG MIGRANTS FROM KYRGYZSTAN IN MOSCOW

The significant numbers of migrants from Kyrgyzstan in Moscow and the difficulties in adapting to the new conditions recorded by our research highlight the need to explore the adaptive capacity of young Kyrgyz. The lack of scientific knowledge about the potential adaptive capacities of different groups of young Kyrgyz hinders the creation of optimal conditions that would allow them to internalize norms, values, and rules of behavior, increases the potential for conflict in the Moscow community, makes the life of migrants less comfortable, and complicates integration processes in the Eurasian Economic Union (EAEU). The purpose of this study is to characterize the adaptive capacity of young people from Kyrgyzstan in Moscow that helps them fit into the social environment, allows them to overcome the discomfort caused by the contradictory social context and unfamiliar living conditions, and influences their success in the host community and their attitudes to integration. The analysis presented in this article rests on empirical data obtained from a structured interview with 823 migrants, citizens of Kyrgyzstan aged 17 to 30 years, conducted in 2020. The novelty of the study lies in a systemic examination and comprehensive assessment of the social adaptation capacity of this social community, because up to now publications on this topic have considered only some aspects of the phenomenon. In this article, “adaptive capacity” refers to the set of individual characteristics of migrants that ensures their inclusion into the host society, a change in previous norms and models of behavior, and the socialization of new behavior models emerging in the process of interaction between the individual and the new socio-cultural conditions of life and work as the synergistic effect of the relationship and interaction between the adaptive capacity of the individual and that of the environment. Its analysis is based on a description of expectations, perceptions, and social attitudes; the level of empathy, openness and complementarity with regard to the host community; and the degree of tolerance for people of other nationalities and identities. The article shows how migrants evaluate the adaptive capacity of the environment as resulting from coordinated, concerted, and friendly action by all stakeholders: government, employers, and local population. It also analyzes the associations that arise in connection with Russia. The study reveals the impact of migrants’ adaptive capacity on their attitudes to integration processes in the EAEU. It was shown that notions about the nature of the interaction between Muscovites and migrants that is necessary to harmonize the individual and the environment (assimilation, bicultural adaptation or separation) determine the depth and direction of the activities of young migrants and their assessments of concrete social reality, while their strategic preferences with regard to the cultural norms and values of other peoples determine the adaptation attitudes and strategies that largely characterize their adaptive capacity. These strategies are as follows: marginalization of young Kyrgyz in the Moscow community, complementarity, and internalization of dominant norms. The research conducted suggests the need for measures to improve interaction between migrants and the host society and provides grounds for the Eurasian Economic Commission and social institutions in Russia and Kyrgyzstan to develop measures designed to create conditions for adaptation, as well as to determine the appropriate instruments and mechanisms for this purpose. This research paves the way for developing a theory of social adaptation of migrants, for empirical research into migration processes in the post-Soviet space, and for a better understanding of the specific features of social adaptation of young people from Kyrgyzstan.

K.S. Maniam’s Bestiary: Reading Animality and Identity in Selected Stories

This essay scrutinises K.S.Maniam’s fictional animals by going beyond the confines of metaphor to interrogate the concept of animality and how animality impinges on diasporic identity. I examine the writer’s impulse to animalise the notion of national belonging especially though thestrategic deployment of the animal mask which reveals the shared domination of migrant and animal. I argue that Maniam’s critique of animality not only suggests that migrant and animal lives are interlinked but also informs his re-envisioning of the diasporic self. I positthat Maniam’s “new diaspora”advances the notion of diasporic self as ‘becoming-animal.’

Food Security among Libyan Migrants Living in Australia: A Qualitative Study

Food security among migrants and refugees is a concern across the globe, with the dearth of evidence on food labels and their influence on food security affecting disadvantaged communities especially. This paper discusses the experiences of food security among Libyan migrant families in Australia. The study is situated within the food and nutrition security framework. A qualitative approach was adopted with in-depth interviews conducted with 27 Libyan migrants. Thematic analysis identified three themes: food security, food label comprehension, and strategies for dealing with food insecurity and food labelling difficulties. Food security had different meanings to different individuals. Access to culturally appropriate (halal) foods was problematic for families in regional and rural areas due to a lack of availability outside the main cities. In terms of food labelling, the language and terms used were a common issue for most families in both rural and city environments. Many families attempted to find ways to counteract food insecurity; however, lower-income families found this more burdensome. It is crucial that health and social welfare providers consider means to reduce food insecurity among Libyan migrants to allow them to live a healthier life in Australia.

‘Bad parents’, deportable subjects: borders and deportability in the everyday lives of undocumented families in Belgium

ABSTRACT While research has addressed the multiplication of borders inside and across the nation-state and the threat of deportation in the lives of undocumented migrants, little analysis has been dedicated to the particularities of families’ experiences. Based on participatory ethnographic research, this article examines how undocumented families experience and contest exclusionary bordering practices that interfere in the privacy of their family lives in Belgium. I argue that, in order to naturalise and legitimize these families’ ‘deportability’, the state mobilises normative logics about parenthood and childhood that construct undocumented parents as ‘bad parents’, while designating their children as ‘innocent’ and ‘at risk’. Going against these dominant logics, the undocumented parents at the heart of this ethnography contest and reshape the terms upon which the state constructs their ‘deportability’ by reconfirming their role as ‘good’ parents and, instead, problematise repressive migration policies that push them into marginality and misappropriate the notion of ‘the best interests of the child’. In the conclusion, I demonstrate how these insights open new avenues for understanding more broadly the dynamics between the family and contemporary migration regimes.

A Specific Risk Evaluation System for Live Virtual Machine Migration Based on the Uncertain Theory

Benefiting from the convenience of virtualization, virtual machine migration is generally utilized to fulfil optimization objectives in cloud/edge computing. However, live migration has certain risks and unapt decision may lead to side effects and performance degradation. Leveraging modified deep Q network, this paper provided an advanced risk evaluation system. Thorough formulation was given in this paper and a specific integration method was innovated based on uncertain theory. Series experiments were carried on computing cluster with OpenStack. The experimental results showed deep Q network for risk system was reliable while the uncertain approach was a proper way to deal with the risk integration.

SĂNĂTATEA FIZICĂ ȘI PSIHO-SOCIALĂ A COPIILOR MARCAȚI DE MIGRAȚIA PARENTALĂ DE MUNCĂ

The Republic of Moldova is today one of the countries which is considerably affected by migration. Almost 25% of the economically active population of the country is involved in temporary labor migration. According to the data offered by the Ministry of Health, Labor and Social Protection of the Republic of Moldova, at the beginning of 2020, the total number of children affected by parental labor migration was 29 186. In order to define the quality of life (QL) of migrants’children, there were researched different aspects of their lives, such as physical functioning (FF), emotional functioning (EF), social functioning (SF) and school functioning (SF). The given research involved 150 children from Moldova. They were of different age groups (5-7, 8-12, 13-18), from whom 75 children were of the labor migrants and their parents/tutors who remain in the country and 75 children of the labor migrants without labor migration experience. As the instrument for given research there was used the Pediatric Quality of Life Inventory (PedsQL™4.0) questionnaire. In the course of the research there was emphasized the quality of life of children of the highest level with the score from 100 to 91, the middle level from 90 to 81, the low level from 80 to 71 and the lowest level less than 70 points. According to the results of the investigation it was established that the migrants’ children of various age groups, from all the examined aspects had a very low level of QL (less than 70 points). The presented results perform a very convincing fact that labor migrants’ children in comparison to their peers from the families without labor migration experience had a considerably low index on all the scales and on integral characteristics of quality of life.

Digitalization and e‐government in the lives of urban migrants: Evidence from Bogotá

AbstractResearch on the role of information and communication technologies (ICT) to improve the lives of migrants is a growing field. However, studies in this area have been conducted mainly in wealthy countries, with municipalities that are capable of supporting migrants or refugees. There is less evidence from middle‐income host countries and how ICTs can help migrants in their resettlement efforts. To address this gap, this study examines ICT access and the use of e‐government services by Venezuelan migrants in Colombia and compares this group with short‐ and long‐term residents of Bogotá. The descriptive analysis of the data reveals that, after controlling for demographic and socioeconomic characteristics, foreign migrants are less likely to own ICT devices compared to short‐ and long‐term residents, but over time do acquire ICT access. In addition, Venezuelan migrants are less likely to use e‐government services than their local peers even after controlling for demographic characteristics and internet access, with the exception of address registration. The results indicate that ICT access is not a sufficient condition for migrants to access e‐government services and there is a need for policy coordination to reduce bureaucratic “red tape” that may diminish migrants’ likelihood of accessing to e‐government services.

Virtual machines pre-copy live migration cost modeling and prediction: a survey

Live migration is an essential feature in virtual infrastructure and cloud computing datacenters. Using live migration, virtual machines can be online migrated from a physical machine to another with negligible service interruption. Load balance, power saving, dynamic resource allocation, and high availability algorithms in virtual data-centers and cloud computing environments are dependent on live migration. Live migration process has six phases that result in live migration cost. Several papers analyze and model live migration costs for different hypervisors, different kinds of workloads and different models of analysis. In addition, there are also many other papers that provide prediction techniques for live migration costs. It is a challenge for the reader to organize, classify, and compare live migration overhead research papers due to the broad focus of the papers in this domain. In this survey paper, we classify, analyze, and compare different papers that cover pre-copy live migration cost analysis and prediction from different angels to show the contributions and the drawbacks of each study. Papers classification helps the readers to get different studies details about a specific live migration cost parameter. The classification of the paper considers the papers’ research focus, methodology, the hypervisors, and the cost parameters. Papers analysis helps the readers to know which model can be used for which hypervisor and to know the techniques used for live migration cost analysis and prediction. Papers comparison shows the contributions, drawbacks, and the modeling differences by each paper in a table format that simplifies the comparison. Virtualized Data-center and cloud computing clusters admins can also make use of this paper to know which live migration cost prediction model can fit for their environments.

Persian Population of Terek Region in Second Half of 19th — Early 20th Centuries

The migration movement of the population of Northern Iran to the Terek region in the era of its post-reform modernization in the second half of the 19th — early 20th centuries is considered. The reasons, nature, time and features of the migration history of the Iranians are considered. The novelty of the study lies in the identification of specific starting points of migration on the territory of Iran, routes of advancement on Russian territory and places of settlement in the Terek region. Particular attention is paid to the study of the social composition and economic adaptation of migrants. On the basis of archival sources, corrections were made to the prevailing ideas about social strata, about the labor nature of migration, and about the ethnic composition of migrants. Significant differences in the situation of migrants in the Transcaucasia and the North Caucasus are revealed. The dependence of these differences on the characteristics of the host society — the Terek region during the period of post-reform modernization of the economy and social development -is determined. The specifics of the arrangement of Iranian migrants in national regions of the region have been determined. It is concluded that ethnic entrepreneurship was the basis of the adaptation process and the life of migrants who made a significant contribution to the development of the region’s economy.

COVID Roundtable

COVID Roundtable

When numbers eclipse narratives: a cultural-political critique of the ‘ethical’ impacts of short-term experiences in global health in Dominican Republic bateyes

With the rising demand for short-term experiences in global health (STEGH) is an ever-increasing volume of literature that focuses attention on ethics and ethical concerns, such as the effects of...

Asymmetrical understandings of the value of time between Taiwanese Working Holiday Makers and the Australian government: Cultural exchange or serving time?

The impact temporary visa status has on the lives of migrants and their experience of time has been widely discussed. Fewer studies, however, focus discussion on the competing interpretations of the value of Working Holiday Makers’ (WHMs) time and the complexities of disruption and (un)certainties: more specifically the contrast between the value the Australian government places on time spent doing agricultural work in rural areas to become eligible for a second visa, and how this time is perceived by WHMs. This article seeks to fill this gap by comparing data drawn from the government’s rhetoric and interviews with Taiwanese WHMs who had worked in regional areas of Australia for three months. I argue that the government selectively highlights to prospective WHMs the value of cultural exchange and tourism (life-value) while downplaying the labor value (money-value) to WHMs’ time. Furthermore, the government and WHMs are not always talking about the same ‘time units’ (working time and holiday time) when applying these values. This article demonstrates that WHMs are conscious of how their time is spent and perceive the three months of specified work as being ‘suspended’, ‘immobile’, and ‘disrupted’, which undermines their life-values and migration flow in Australia.

Trust, Sociability, and Quality of Life of Sub-Saharan African Migrants in Germany.

Poor social integration is associated with poor quality of life among minority groups. The current study hypothesized that trust and sociability may significantly explain the quality of life performance among Sub-Saharan African migrants in Germany. Data from 518 migrants were analyzed. Hierarchical multiple linear regression models were calculated to assess the predictive effect of trust and sociability on aggregate quality of life. Results show that general trust and sociability explained about 21% of the variance in quality of life score (adjusted R 2 = .206; p < .001) for the total sample. Socioeconomic and demographic features suggested an added predictive effect of about 8% for total sample (adjusted R 2 = .279; p < .001), 10% for male (adjusted R 2 = .322; p < .001) and 4% for female (adjusted R 2 = .211; p < .001). The results support trust and sociability as essential in connecting to a new environment and enhancing the quality of life.

Scalable Fog Computing Orchestration for Reliable Cloud Task Scheduling

As Internet of Things (IoT) and Industrial Internet of Things (IIoT) devices are becoming increasingly popular in the era of the Fourth Industrial Revolution, the orchestration and management of numerous fog devices encounter a scalability problem. In fog computing environments, to embrace various types of computation, cloud virtualization technology is widely used. With virtualization technology, IoT and IIoT tasks can be run on virtual machines or containers, which are able to migrate from one machine to another. However, efficient and scalable orchestration of migrations for mobile users and devices in fog computing environments is not an easy task. Naïve or unmanaged migrations may impinge on the reliability of cloud tasks. In this paper, we propose a scalable fog computing orchestration mechanism for reliable cloud task scheduling. The proposed scalable orchestration mechanism considers live migrations of virtual machines and containers for the edge servers to reduce both cloud task failures and suspended time when a device is disconnected due to mobility. The performance evaluation shows that our proposed fog computing orchestration is scalable while preserving the reliability of cloud tasks.

Mobile phones: An indispensable tool for migrants

“Sometimes I have to choose between food and internet connectivity, to keep in touch with my family back home. When I need money, I make a call to them via WhatsApp, and they send it very quickly.” This is how Mamadou, a 22-year-old from Niger, sums up the key role that smartphones now play in the lives of migrants. The fact that refugees can spend up to a third of their budget on internet access – according to the Rabat office of the UNHCR, the United Nations Refugee Agency – is proof of how important these portable devices are.

Public Security Revisited

Abstract With its Judgment of 27 November 2019 in Case T-31/18 Luisa Izuzquiza and Arne Semsrott v European Border and Coast Guard Agency (Frontex), the Court of Justice of the European Union opened a new chapter in the elaboration of the two seemingly antagonistic interests enshrined in Regulation (EC) No 1049/2001 of 30 May 2001 regarding public access to European Parliament, Council and Commission documents: the public’s fundamental right to transparency versus the public’s interest as regards “public security”. Focusing on the evolution of “public security” in the EU since 1993, this case note analyses the CJEU’s balancing of these principles, its increased scrutiny of Frontex administrative decisions, and the extent to which Frontex had to justify its denial to grant access to documents through the lens of the management of sensitive operational information. This examination puts the judgment in the context of the ongoing situation in the central Mediterranean and, by providing detailed insights on the underlying operational considerations, shows that the fundamental and wide-reaching right to transparency has to be balanced with the need to protect crew and vessels and the implementation and enforcement of the Frontex mandate. While continuing established case law in its use of the public security exception (a so-called absolute exception that is not subject to an overriding public interest test), in this case the CJEU subsumed, for the first time, individual subjective rights and legal interests under public security. This article argues that this amounts to the individualisation of public security. As pointed out by Frontex in its written and oral defence, the CJEU thus opened the door to extending the scope of public security to also include other groups of people in the government’s continuous and exclusive de jure and de facto control. The conclusion from the Frontex Case is thus that protecting life at sea and ensuring effective border surveillance are two sides of the same medal as they have a common aim: combatting human smugglers, traffickers in human beings and other criminals and safeguarding life, safety and physical integrity of law-enforcement crew and migrants alike.

COVID-19 Clinical Profile in Latin American Migrants Living in Spain: Does the Geographical Origin Matter?

The aim of this study was to describe and compare the clinical characteristics of hospitalized patients with COVID-19 pneumonia according to their geographical origin. This is a retrospective case-control study of hospitalized patients with confirmed COVID-19 pneumonia treated at Vall d’Hebron University Hospital (Barcelona) during the first wave of the pandemic. Cases were defined as patients born in Latin America and controls were randomly selected among Spanish patients matched by age and gender. Demographic and clinical variables were collected, including comorbidities, symptoms, vital signs and analytical parameters, intensive care unit admission and outcome at 28 days after admission. Overall, 1080 hospitalized patients were registered: 774 (71.6%) from Spain, 142 (13.1%) from Latin America and the rest from other countries. Patients from Latin America were considered as cases and 558 Spanish patients were randomly selected as controls. Latin American patients had a higher proportion of anosmia, rhinorrhea and odynophagia, as well as higher mean levels of platelets and lower mean levels of ferritin than Spanish patients. No differences were found in oxygen requirement and mortality at 28 days after admission, but there was a higher proportion of ICU admissions (28.2% vs. 20.2%, p = 0.0310). An increased proportion of ICU admissions were found in patients from Latin America compared with native Spanish patients when adjusted by age and gender, with no significant differences in in-hospital mortality.

Часові аспекти якості життя у дослідженнях міжнародної міграції

The article is devoted to revealing the scientifi c potential of temporal aspects in studying the quality of life of international migrants. Th e purpose of this paper is to initiate a scientifi c discussion on temporal indicators of population well-being and present empirical evidence of their importance in migration research. Th e scientifi c novelty lies in revealing the widespread use of temporal elements in the structure of systems for quality of life assessing, substantiation the need to use time indicators in studies of international migrants’ well-being. Th e article uses methods of system approach, analysis and synthesis, grouping, comparison. Th e study showed that contemporary approaches of the quality of life analysis abounds with time-dependent elements. However, conceptualization of temporality is absent there. Temporal indicators connected with duration and rhythm are most oft en used. Th e main empirical basis for studying the migrants’ quality of life in this article is the results of the European Social Survey (ESS). Th e reference group for comparing the migrants’ well-being in this study is local population. Th e integrated indicator of quality of life assessment, the average happiness score, is used. It shows almost identical overall values of this indicator for both population groups (the diff erence was 0.1 points on a 10-point scale). Th ere was a lack of territorial universality to identify a happier group because in half of the analyzed countries the locals were happier than newcomers whereas in the rest of the territories there was the opposite situation or the same values of the indicator. Th e average happiness scores and life satisfaction scores among migrants decrease in parallel with the increase in length of stay in the destination country. A separate eff ect of age and length of stay temporal characteristics on the quality of life of international migrants is established. The degree of freedom, the agency to infl uence their own lives is considered a separate temporal element of the migrants’ well-being. According to the ESS, the average value of this indicator for newcomers and locals coincides.

Forging Ties, Forging Passports: Migration and the Modern Sephardi Diaspora

Devi Mays's book explores the generation of Sephardi Jewish migrants who left the Mediterranean regions belonging to the Ottoman Empire (before and after its fall) and were thrown into a world newly invested in formal paperwork to categorize and identify individuals and their origins. She focuses on the ways that “states attempt to categorize, make stable, and fix populations” but argues that “the individuals and groups this book examines often thrived in motion, in blurring categories that were not as rigid as consular and border officials liked to believe, or at least to portray in their interactions with higher-ups” (p. 2). Through an array of sources from archives in the Middle East, the Americas, and Europe, Mays traces the trajectories of her subjects as they navigated borders and immigration officials, making and remaking their lives and identities.Mays has written a transnational history, focusing on those from the Ladino-language sphere of the Ottoman Empire, who usually ended up in Mexico at some point. Even as she follows many men who make their homes in or pass through Mexico, readers never fully understand why Mexico is the focus of much of her inquiry or the contours of Sephardi life there. The stories of individuals can often tell us important information about the choices that people faced as well as the unseen struggles of those who were not elite. Yet by not tethering those individuals to the communities in which they found themselves and by choosing to focus more broadly on the larger state, the lives of the individuals remain blurry in many ways. Clearly, tracing the lives of individual migrants moving between states in a period of upheaval is a difficult task—yet a broader discussion of the societies in which these migrants found themselves would have added a great deal. State responses, passport stamps, and individual trajectories can tell us only so much.Mays's book moves from very specific examples of individual movement between regions and states to large-scale issues like the fall of the Ottoman Empire and its aftermath or the new directions of the Mexican government following the revolution. What is often missing is the space in-between. With her work focused mostly at the micro or macro level, we get little sense of the societies and larger cultural networks in which the individuals existed—such as families, communities, and cities.Mays returns throughout the book to the issue of “hypermobility”—migrants who spend short stays in different countries (sometimes just a matter of months) before moving on. The concept is useful, and her examples show the economic and personal reasons for why many Sephardi men seemed to be constantly moving. Yet the vast majority of her examples were men, and there was no discussion of the (potentially) gendered nature of this hypermobility. The lack of gender analysis overall in the work was frustrating. Women appear in the book, but almost always as the wife or daughter of a more important subject, and their role in migration overall is never clear. Were women also allowed to be hypermobile, or was it a privilege accorded to only men? This would have been useful to know.The book is at its strongest when discussing the large-scale changes that affected the lives of its subjects. Mays's treatment of the Ottoman Empire's fall and the ensuing uncertainty of those living in the region is excellent. The rise of passport and visa controls was another area in which the book makes a strong contribution. By following subjects who started migrating before the era of standardized passports through World War I and the end of the Ottoman Empire, Mays shows the array of strategies that individuals employed to get where they wanted. Few other histories of migration delve so deeply into the papers required for transit, and because of the hypermobility of many of her subjects, the study is fascinating. She demonstrates how the rise of documentation allowed creative ways for subjects to reinvent their identities and origins as they passed through different locations.Mays's work adds a great deal to our knowledge of the mechanics of how Sephardi Jews migrated from the Mediterranean to the Americas, and her focus on hypermobility will align in a variety of ways with much scholarship on a variety of immigrant groups throughout history. The book will be of great interest to scholars working on transnational migration networks as well as those researching Sephardi Jews and the role of ethnic minorities in Mexico.