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Wednesday, February 23, 2005

On Monday, at 10.14 pm UTC, the Wikimedia server cluster experienced a total power failure, taking down Wikipedia, Wikinews, and all other Wikimedia websites.

The servers are housed in a colocation facility (colo) in Tampa, Florida, USA. They occupy two racks, with each rack receiving electricity from two independent supplies. However, both supplies have circuit-breakers in them, and both opened at the same time, leading to a total power failure. All computers immediately went down. It’s normal for fire safety regulations to prohibit uninterruptible power supplies in colos, with the colo providing its own UPS and generator instead. The circuit breakers were on the computer side of this emergency power system, so none of the computers continued to receive power to survive the breaker trip or shut down safely.

The actual reason why the circuit breakers tripped is currently unknown.

When power was restored, it was discovered that most of the MySQL databases that store the data which makes up Wikipedia et al had been corrupted. The main database and the four slaves had all damaged the data on their hard disk drives beyond the ability of the auto-correction to repair. Only one copy survived safely, on a machine that is used for report generation and maintenance tasks, which remained 31 hours backlogged while catching up after an unusually heavy update load during the previous week.

Volunteer Wikimedia engineers worked through the night rebuilding the databases from the sole good copy onto the other servers. The Wikipedia database is over 180Gb in size, making the copying process last 1.5 – 2 hours for every server it was performed upon.

Regular back-ups of the database of Wikipedia projects are maintained – the encyclopedia in its entirety was not at risk. The last database download was made on February 9; all edits since then could only have been laboriously rebuilt from logs and recovered from the damaged database requiring much more time and effort.

Limited read-only service was established late Tuesday afternoon, with editing becoming possible 24 hours after the power failure. Final repairs continue now, as well as upgrades to prevent similar issues in the future. Server-intensive features, such as categories and ‘watchlists’ that display recent changes to selected articles to registered users, remain disabled to ease the load on the recovering systems.

The process which led to the damage originated with the operating system, disk controllers, or hard drives failing to flush the data correctly.

If the power to a database server is cut mid-write, the database may be corrupted and unreadable, however the operating system, hardware, and software are designed to make this very unlikely. In a previous incident in 2004 power was also lost to a server but the database was undamaged.

To avoid such damage, each database server saves a copy of an edit to be applied to the database on a separate storage system before making the actual update to the database itself. This so-called ‘write-ahead logging’ should ensure that in the event of a system crash, the database can be rebuilt from a ‘last-good’ state by replaying the edits saved in the log.

Earlier this year popular blogging site LiveJournal suffered a similar power failure when another customer at their colocation facility pressed an Emergency Power Off button, intended for use only by firefighters. The company suffered database corruption similar to that seen at Wikimedia.

LiveJournal are now fitting UPS to their servers to ensure that they have time to shut down safely in the event of a power failure. Wikimedia was said to be investigating the possibility of fitting similar equipment at the time of this failure.

Several pundits have suggested that the use of another database, such as the proprietary database Oracle or the free PostgreSQL, would have avoided the database corruption seen at the server cluster. A post-mortem of the incident show the failure was in the operating system, or the hardware, or some combination of the two. LiveJournal, which also uses MySQL, reported similar database corruption after their power cut.

The Wikimedia foundation only allows the use of free software on its systems, and future versions of the Mediawiki software will support the PostgreSQL database.

Users are reminded that during times of system failure or excessive demand, they can still search Wikipedia using Google. The articles may be viewed using Google’s cache.

Sunday, June 21, 2020

On Thursday, UK-based retailer Tesco and Denmark-based retailer Salling Group announced their agreement over selling a large portion of Tesco’s Polish operation to Salling Group. Tesco stated its intention to leave the Polish market altogether, Salling its intention to strengthen its Netto chain in Poland.

The deal covers 301 stores, two distribution centers and the head office. With the acquisition Salling said it seeks to improve its coverage in Southern Poland and, over 18 months at a cost of one billion z?otys, intends to merge these stores into its currently 386 strong Netto chain. Salling also takes over about 7000 employees from Tesco — Netto Poland currently has about 5000 employees. Tesco continues to run 19 stores, which were not included in this package.

The sale price, to be payed in cash, is 900 million z?otys (181 million pounds). In the 2019/20 fiscal year, Tesco said its Polish branch had a 24 million pounds operating loss with a 1368 million pounds turnover; to which the sold units contributed with a 947 million pounds turnover for a 107 million loss. At fiscal year-end, the sold units held a value of 681 million pounds in the books.

UOKiK, the Polish anti-monopoly agency, has to approve the deal. The parties said they expect a decision this year.

Tesco has suffered losses from its Polish operation for several years, as customer preference has shifted away from hypermarkets, Tesco’s preferred store size, to smaller discount stores like Biedronka and LIDL. The Sunday trade ban, introduced in 2018, also hurt sales. According to Notes from Poland (NFP), some discount stores resorted to offer postal services, a loophole which allows Sunday opening hours.

In 2015, Tesco centralized its management in the Central European region, comprising Czechia, Hungary, Poland, and Slovakia, but reverted the decision later on. At the time, the company invested in e-commerce and started home deliveries, but Gazeta Prawna reports only 0.5% of Polish grocery turnover comes from this segment, compared to 7% in the United Kingdom.

In the past few years, Tesco Polska has cut expenditures by streamlining its product range, halving its staff, shutting off home deliveries in parts of the country, and closing off stores, reportedly including last year its Poznan distribution center. Deutsche Welle (DW) reported in mid-2019, 62 Tesco outlets had closed within a year. Staff layoffs left meat, fish and delicatessen departments without designated shop assistants, and forced staff canteen closures and administration simplifications.

Tesco sold its roughly 2000 Thai and 74 Malaysian stores to Charoen Pokphand in March; announced leaving its joint venture with China Resources Holdings in February; and in 2015 sold its South Korean chain HomePlus. Speaking to Portfolio.hu, Matt Simister, Tesco’s CEO for Central Europe, explained that the company held a 4% share of the Polish retail market, compared to its 16% share in Hungary, and stated they want to stay in Hungary. In a DW report in March of last year, Dave Lewis, CEO of Tesco, stated they did not have intentions of leaving Thailand or Poland.

Tesco’s Polish operation, according to Gazeta Wyborcza in March, is too big for a single monolithic sale. The chain’s press release reported 22 sold units in the past year and a half, for around 200 million pounds. NFP named the Kaufland chain and property developer Echo Investment among the buyers.

Both Tesco and Salling entered the Polish market in 1995.

Sunday, August 3, 2008

At least seven mountaineers have died while climbing K2, the second highest mountain in the world. The accident was reportedly caused by a rock slide or an avalanche that severed all the ropes used for ascent and descent.

Initial reports state that seventeen climbers ascended the mountain in two groups, with both reaching the summit successfully. The reports also state that after the avalanche, some climbers attempted to return without ropes.

The summit was covered in clouds late yesterday afternoon and the conditions in the mountain continued to deteriorate. Some of the latest reports indicate that eight climbers were stuck at the summit, unable to descend. Four of these climbers are Norwegian nationals. The conditions at the summit during night are extreme and offer very limited chances for survival for people unable to descend.

In an unrelated incident, a Serbian climber and his sherpa fell down during the initial descent. This incident was, however, unrelated to the other deaths caused by the avalanche.

Sunday, January 29, 2006

The Australian federal government hopes to slash hospital emergency department waiting queues by setting up a 24-hour national medical hotline.

A government source said that the National Health Call Centre Network would be manned by registered triage nurses 24-hours a day, 7-days a week. Triage nurses would perform a diagnosis over the phone based upon the description given by the patient. The patient would then be referred to the nearest emergency department, their local GP or pharmacy – as determined by the nurse.

The issue is expected to be discussed at next month’s Council of Australian Governments (COAG) meeting in Canberra. It is believed that the states and territories are supportive of the system.

If agreed upon by COAG, the service will be jointly funded by state/territory and the commonwealth governments at a cost of $40 million a year. The service would take 18 months to set up.

The service will be ran from a centralised call centre and be managed by a private contractor.

Julia Gillard, the opposition’s spokeswoman for health said any national call service needed to be linked with local GPs and medical services.

Gillard claims that under a Labor government, an after-hours “Pizza Hut” style service would be implemented, with a single national number connecting to a local call centre.

“You would be talking to people in the locality you are in and who know the local services,” she said

The Australian Medical Association, an organisation representing more than 27,000 doctors in Australia has slammed the proposal saying it will only deter people from seeking appropriate medical treatment.

Friday, March 13, 2009

Wall Street had its best finish since November 2008 after a four day rally with the stock market’s indexes seeing their best weekly gain in nearly five months. The major indicators in the NYSE had a gain of around 10 percent. This was mainly due to bank shares bouncing and alleviating fears about the economy.

The Dow Jones industrial average (INDU) finished on 7223.98, an increase of 54 points from March 12 2009. The S&P 500 Index finished at 756.55 a 6 point gain and the NASDAQ composite had a 5.40 point gain as well to end the day at 1431.50.

The rally began earlier this week after the news from Citigroup Inc. about managing profits during first two months of the year. The news lessened fears about the country’s major financial institutions collapsing after the collapse of Lehman Brothers in September. There was more good news from Bank of America Corp. and JPMorgan Chase & Co., who announced that they have had profits in the current year.

Today was a mixed day for the financial sector, Drug makers had some gains and so did General Motors and Berkshire Hathaway , which helped the indexes gain. The value of the US dollar fell against other world currencies, but gold prices increased.

Monday, January 26, 2009

On Thursday, the municipal intermediate people’s court in Shijiazhuang, Hebei province, China pronounced sentences for 21 defendants implicated in the 2008 Chinese milk scandal which killed at least six infants and sickened nearly 300,000 others.

In the local court’s decision, 17 accused were indicted for the crimes of “producing, adding melamine-laced ‘protein powder’ to infant milk or selling tainted, fake and substandard milk to Sanlu Group or 21 other dairy companies, including six who were charged with the crime of endangering public security by dangerous means.” Four other courts in Wuji County, in Hebei, China had also tried cases on the milk scandal.

Zhang Yujun, age 40, of Quzhou County (Hebei), who produced and sold melamine-laced “protein powder” in the milk scandal, was convicted of endangering public security and sentenced to death by the Shijiazhuang intermediate people’s court.

The court also imposed the penalty of death upon Geng Jinping, who added 434 kg of melamine-laced powder to about 900 tons of fresh milk to artificially increase the protein content. He sold the tainted milk to Sanlu and some other dairy companies. His brother Geng Jinzhu was sentenced to eight years imprisonment for assisting in adding the melamine.

A suspended capital punishment sentence, pending a review, with two years probation, was handed down to Gao Junjie. Under the law, a suspended death sentence is equivalent to life imprisonment with good behavior. The court ruled that Gao designed more than 70 tons of melamine-tainted “protein powder” in a Zhengding County underground factory near Shijiazhuang. His wife Xiao Yu who assisted him, was also sentenced to five years imprisonment.

Sanlu Group General Manager Tian Wenhua, 66, a native of Nangang Village in Zhengding County, who was charged under Articles 144 and 150 of the criminal code, was sentenced to life imprisonment for producing and selling fake or substandard products. She was also fined 20 million yuan (US$2.92 million) while Sanlu, which has been declared bankrupt, was fined 49.37 million yuan ($7.3 million).

Tian Wenhua plans to appeal the guilty verdict on grounds of lack of evidence, said her lawyer Liang Zikai on Saturday. Tian testified last month during her trial that she decided not to stop production of the tainted milk products because a Fonterra designated board member handed her a document which states that a maximum of 20 mg of melamine was allowed in every kg of milk in the European Union. Liang opined that Tian should instead be charged with “liability in a major accident,” which is punishable by up to seven years imprisonment, instead of manufacturing and selling fake or substandard products.

According to Zhang Deli, chief procurator of the Hebei Provincial People’s Procuratorate, Chinese police have arrested another 39 people in connection with the scandal. Authorities last year also arrested 12 milk dealers and suppliers who allegedly sold contaminated milk to Sanlu, and six people were charged with selling melamine.

In late December, 17 people involved in producing, selling, buying and adding melamine to raw milk went on trial. Tian Wenhua and three other Sanlu executives appeared in court in Shijiazhuang, charged with producing and selling fake or substandard milk contaminated with melamine. Tian pleaded guilty, and told the court during her 14-hour December 31 trial that she learned about the tainted milk complaints and problems with her company’s BeiBei milk powder from consumer complaints in mid-May.

She then apparently led a working team to handle the case, but her company did not stop producing and selling formula until about September 11. She also did not report to the Shijiazhuang city government until August 2.

The court also sentenced Zhang Yanzhang, 20, to the lesser penalty of life imprisonment. Yanzhang worked with Zhang Yujun, buying and reselling the protein powder. The convicts were deprived of their political rights for life.

Xue Jianzhong, owner of an industrial chemical shop, and Zhang Yanjun were punished with life imprisonment and 15 years jail sentence respectively. The court found them responsible for employment of workers to produce about 200 tons of the tainted infant milk formula, and selling supplies to Sanlu, earning more than one million yuan.

“From October 2007 to August 2008, Zhang Yujun produced 775.6 tons of ‘protein powder’ that contained the toxic chemical of melamine, and sold more than 600 tons of it with a total value of 6.83 million yuan [$998,000]. He sold 230 tons of the “protein powder” to Zhang Yanzhang, who will stay behind bars for the rest of his life under the same charge. Both Zhangs were ‘fully aware of the harm of melamine’ while they produced and sold the chemical, and should be charged for endangering the public security,” the Court ruled.

The local court also imposed jail sentences of between five years and 15 years upon three top Sanlu executives. Wang Yuliang and Hang Zhiqi, both former deputy general managers, and Wu Jusheng, a former raw milk department manager, were respectively sentenced to 15 years, eight years and five years imprisonment. In addition, the court directed Wang to pay multi-million dollar fines. In December, Wang Yuliang had appeared at the Shijiazhuang local court in a wheelchair, after what the Chinese state-controlled media said was a failed suicide attempt.

The judgment also states “the infant milk powder was then resold to private milk collectors in Shijiazhuang, Tangsan, Xingtai and Zhangjiakou in Hebei.” Some collectors added it to raw milk to elevate apparent protein levels, and the milk was then resold to Sanlu Group.

“The Chinese government authorities have been paying great attention to food safety and product quality,” Yu Jiang Yu, spokesperson for the Ministry of Foreign Affairs, said. “After the case broke out, the Chinese government strengthened rules and regulations and took a lot of other measures to strengthen regulations and monitor food safety,” she added.

In the People’s Republic of China, the intermediate people’s court is the second lowest local people’s court. Under the Organic Law of the People’s Courts of the People’s Republic of China, it has jurisdiction over important local cases in the first instance and hear appeal cases from the basic people’s court.

The 2008 Chinese milk scandal was a food safety incident in China involving milk and infant formula, and other food materials and components, which had been adulterated with melamine. In November 2008, the Chinese government reported an estimated 300,000 victims have suffered; six infants have died from kidney stones and other acute renal infections, while 860 babies were hospitalized.

Melamine is normally used to make plastics, fertilizer, coatings and laminates, wood adhesives, fabric coatings, ceiling tiles and flame retardants. It was added by the accused to infant milk powder, making it appear to have a higher protein content. In 2004, a watered-down milk resulted in 13 Chinese infant deaths from malnutrition.

The tainted milk scandal hit the headlines on 16 July, after sixteen babies in Gansu Province who had been fed on milk powder produced by Shijiazhuang-based Sanlu Group were diagnosed with kidney stones. Sanlu is 43% owned by New Zealand’s Fonterra. After the initial probe on Sanlu, government authorities confirmed the health problem existed to a lesser degree in products from 21 other companies, including Mengniu, Yili, and Yashili.

From August 2 to September 12 last year Sanlu produced 904 tonnes of melamine-tainted infant milk powder. It sold 813 tonnes of the fake or substandard products, making 47.5 million yuan ($13.25 million). In December, Xinhua reported that the Ministry of Health confirmed 290,000 victims, including 51,900 hospitalized. It further acknowledged reports of “11 suspected deaths from melamine contaminated milk powder from provinces, but officially confirmed 3 deaths.”

Sanlu Group which filed a bankruptcy petition, that was accepted by the Shijiazhuang Intermediate People’s Court last month, and the other 21 dairy companies, have proposed a 1.1 billion yuan ($160 million) compensation plan for court settlement. The court appointed receiver was granted six months to conclude the sale of Sanlu’s assets for distribution to creditors. The 22 dairy companies offered “families whose children died would receive 200,000 yuan ($29,000), while others would receive 30,000 yuan ($4,380) for serious cases of kidney stones and 2,000 yuan ($290) for less severe cases.”

Sanlu stopped production on September 12 amid huge debts estimated at 1.1 billion yuan. On December 19, the company borrowed 902 million yuan for medical and compensation payment to victims of the scandal. On January 16, Sanlu paid compensation of 200,000 yuan (29,247 U.S. dollars) to Yi Yongsheng and Jiao Hongfang, Gangu County villagers, the parents of the first baby who died.

“Children under three years old, who had drunk tainted milk and had disease symptoms could still come to local hospitals for check-ups, and would receive free treatment if diagnosed with stones in the urinary system,” said Mao Qun’an, spokesman of the Ministry of Health on Thursday, adding that “the nationwide screening for sickened children has basically come to an end.”

“As of Thursday, about 90% of families of 262,662 children who were sickened after drinking the melamine-contaminated milk products had signed compensation agreements with involved enterprises and accepted compensation,” the China Dairy Industry Association said Friday, without revealing, however, the amount of damages paid. The Association (CDIA) also created a fund for payment of the medical bills for the sickened babies until they reach the age of 18.

Chinese data shows that those parents who signed the state-backed compensation deal include the families of six children officially confirmed dead, and all but two of 891 made seriously ill, the report said. Families of 23,651 children made ill by melamine tainted milk, however, have not received the compensation offer, because of “wrong or untrue” registration details, said Xinhua.

Several Chinese parents, however, demanded higher levels of damages from the government. Zhao Lianhai announced Friday that he and three other parents were filing a petition to the Ministry of Health. The letter calls for “free medical care and follow-up services for all victims, reimbursement for treatment already paid for, and further research into the long-term health effects of melamine among other demands,” the petition duly signed by some 550 aggrieved parents and Zhao states.

“Children are the future of every family, and moreover, they are the future of this country. As consumers, we have been greatly damaged,” the petition alleged. Chinese investigators also confirmed the presence of melamine in nearly 70 milk products from more than 20 companies, quality control official Li Changjiang admitted.

In addition, a group of Chinese lawyers, led by administrator Lin Zheng, filed Tuesday a $5.2 million lawsuit with the Supreme People’s Court of the People’s Republic of China (under Chief Grand Justice Wang Shengjunin), in Beijing, on behalf of the families of 213 children’s families. The class-action product liability case against 22 dairy companies, include the largest case seeking $73,000 compensation for a dead child.

According to a statement to the Shanghai Stock Exchange Market Friday, China’s Inner Mongolia Yili Industrial Group Company, which has a domestic market share of milk powder at 8 percent, reported a net loss in 2008 because of the milk scandal. A Morgan Stanley report states the expected company’s 2008 loss at 2.3 billion yuan. The scandal also affected Yili’s domestic rivals China Mengniu Dairy Company Limited and the Bright Group. Mengniu suffered an expected net loss of 900 million yuan despite earnings in the first half of 2008, while the Bright Group posted a third quarter loss at 271 million yuan last year.

New Zealand dairy giant Fonterra, said Saturday it accepted the Chinese court’s guilty verdicts but alleged it had no knowledge of the criminal actions taken by those involved. “We accept the court’s findings but Fonterra supports the New Zealand Government’s position on the death penalty. We have been shocked and disturbed by the information that has come to hand as a result of the judicial process,” said Fonterra Chief Executive Andrew Ferrier.

“Fonterra deeply regrets the harm and pain this tragedy has caused so many Chinese families,” he added. “We certainly would never have approved of these actions. I am appalled that the four individuals deliberately released product containing melamine. These actions were never reported to the Sanlu Board and fundamentally go against the ethics and values of Fonterra,” Ferrier noted.

Fonterra, which controls more than 95 percent of New Zealand’s milk supply, is the nation’ biggest multinational business, its second-biggest foreign currency earner and accounts for more than 24 percent of the nation’s exports. Fonterra was legally responsible for informing Chinese health authorities of the tainted milk scandal in August, and by December it had written off its $200 million investment in Sanlu Group.

Amnesty International also strongly voiced its opposition to the imposition of capital punishment by the Chinese local court and raised concerns about New Zealand’s implication in the milk scandal. “The death penalty will not put right the immense suffering caused by these men. The death penalty is the ultimate, cruel and inhumane punishment and New Zealand must take a stand to prevent further abuses of human rights.” AI New Zealand chief executive Patrick Holmes said on Saturday.

“The New Zealand government does not condone the death sentence but we respect their right to take a very serious attitude to what was extremely serious offending,” said John Phillip Key, the 38th and current Prime Minister of New Zealand and leader of the National Party. He criticized Fonterra’s response Monday, saying, “Fonterra did not have control of the vertical production chain, in other words they were making the milk powder not the supply of the milk, so it was a difficult position and they did not know until quite late in the piece. Nevertheless they probably could front more for this sort of thing.”

Keith Locke, current New Zealand MP, and the opposition Green Party foreign affairs spokesman, who was first elected to parliament in 1999 called on the government and Fonterra to respond strongly against the Chinese verdict. “They show the harshness of the regime towards anyone who embarrasses it, whether they are real criminals, whistleblowers or dissenters,” he said. “Many Chinese knew the milk was being contaminated but said nothing for fear of repercussions from those in authority. Fonterra could not get any action from local officials when it first discovered the contamination. There was only movement, some time later, when the matter became public,” he noted.

Green Party explained “it is time Fonterra drops its overly cautious act.” The party, however, stressed the death penalty is not a answer to the problems which created the Chinese milk scandal. “The Green Party is totally opposed to the death penalty. We would like to see the government and, indeed, Fonterra, speaking out and urging the Chinese government to stop the death penalty,” said Green Party MP Sue Kedgley.

Monday, February 18, 2013

Venezuela’s government has opened a granite processing plant in the state of Bolívar, with the intention of providing about 25% of the granite required nationwide.

Ricardo Menéndez, vice president of the Productive Economic Area, said Venezuelan President Hugo Chávez has yearned for the creation of this project to empower Venezuelan construction. Granito Bolívar is reportedly the most modern Venezuelan granite plant, not consuming community water or electricity, and is also the largest, with a daily capacity to supply enough material for use in construction of about 820 houses.

Menéndez said, “These granite blocks are the natural resources of our country, are the wealth we have as a country and often [some] simply decided to remove this richness from our country and take them to other countries” ^{((es))Spanish language: ?Esos bloques de granito son la riquezas naturales de nuestro país, son las riquezas que tenemos como patria y que muchas veces sencillamente esas riquezas decidieron sacarlas de nuestro territorio nacional y llevarlas a otros países}.

According to Menéndez, with the help of a state plan, Venezuela intends to exploit its 40,000 million cubic meters or more of granite reserves, generating a set of factories. “[T]he central theme is that these plants, all these factories, are for the construction of socialism; that means using our potential, develop the value chain within the country and of course that yields benefits from the point of view of the production system’s organization…. [Granito] Bolívar is not only the vision that historically we had of exposing richness, but the industries, basic industries we have, that level of our workers in the basic industries and in addition the development of the potential we have in the state” ^{((es))Spanish language: ?el tema central es que estas plantas todas estas fábricas son para la construcción del socialismo, eso significa utilizar nuestras potencialidades, dessarrollar la cadena de valor dentro del país y por supuesto que eso genere beneficios desde el punto de vista de la organización del sistema productivo … Bolívar no solamente es la visión que históricamente se tuvo de exponer las riquezas, sino que son las empresas, las empresas básicas que tenemos, ese nivel de nuestros trabajadores de la empresas básicas y adicionalmente el desarrollo del potencial que tenemos en el estado}.

For the construction of the plant, supplied by 23 quarries, the government of Bolívar provided about 30 million bolívares (US$4.7 million) and the national government €2.3 million (US$3 million). Bolívar reportedly has reserves of about 40,000 million tons of red, black, pink and white granite, sufficient for domestic demand for 200 years.