storage

The general scenario is that we have a cluster of servers and we want to set up virtual clusters on top of that using Docker. For that we have created Dockerfiles for different services (Hadoop, Spark etc.). Regarding the Hadoop HDFS service however, we have the situation that the disk space available to the docker containers equals to the disk space available to the server. We want to limit the available disk space on a per-container basis so that we can dynamically spawn an additional datanode with some storage size to contribute to the HDFS filesystem. We had the idea to use loopback files

Link :I worked on based on this Link I added this line to find the size (both Internal and External) size, return availableExternalMemorySize/(1024*1024); I tested in my Tablet. I am getting both Internal and External SD card size as, In Internal Storage: Total Memory --1007 Available Memory --683 In External Storage: Total Memory -- 1763 Available Memory -- 1554 But in Tablet, I saw settings. An External Storage size has 8GB. But it is showing me 1.7 GB around when I tested via programmatically. What is the procedure to find an External storage size? To get the external SD card's available

If I understand correctly, the .bss section in ELF files is used to allocate space for zero-initialized variables. Our tool chain produces ELF files, hence my question: does the .bss section actually have to contain all those zeroes? It seems such an awful waste of spaces that when, say, I allocate a global ten megabyte array, it results in ten megabytes of zeroes in the ELF file. What am I seeing wrong here? Has been some time since i worked with ELF. But i think i still remember this stuff. No, it does not physically contain those zeros. If you look into an ELF file program header, then you

best to explain with an example: in my AudioItem.h #define ITEM_CAPACITY 100 typedef struct DataStruct { void * content; UInt32 size; } DataStruct; typedef DataStruct *DataStructRef; @interface AudioItem : NSObject { DataStructRef data; } @property (assign, readwrite) DataStructRef data; in AudioItem.m @synthesize data; -(id)initWithID:(NSString *)itemID { self = [super init]; data->content = malloc(ITEM_CAPACITY); return self; } The above code looks a lot like this one, but I get a BAD_EXEC_ERROR.. how come? The reason why I would like to use a C buffer rather than some NSMutableData or

i know how to get free capacity on internal memory and on external storage. But i want to know max capacity of internal memory and max capacity of external storage, but i can't find any info about it on google it is possible to achieve it? thanks StatFs stat = new StatFs(Environment.getExternalStorageDirectory().getPath()); long bytesAvailable = (long)stat.getBlockSize() * (long)stat.getBlockCount(); long megAvailable = bytesAvailable / 1048576; Source Also, use this for internal size. StatFs stat = new StatFs(Environment.getDataDirectory().getPath()); Some new methods were introduced in API

I want to save a json file with all the application data (something similar to preference) but im not sure what is the limit size, because if the app cant use this file it will not function probably. is this information known beforehand and the OS reserve some space for your app or its based on the size available. Update: I dont really care about External storage since is not always available in the device and could be changed (SD card) and i could check for internal storage using this but this is not what i want to know, What i want to know if there's a memory size allocated for internal