Erasure coding repair availability

One or more non-transitory machine-readable storage media comprising program code, the program code to:

• based on detecting failure of a first storage node of a plurality of storage nodes in a distributed storage system, determine a set of storage groups which utilized the first storage node for data storage;
• for each storage group in the set of storage groups,
• identify storage nodes of the plurality of storage nodes assigned to the storage group;
• request from two or more of the storage nodes assigned to the storage group a fragment list related to the storage group, wherein the fragment lists are generated based on fragments in storage of the respective storage nodes;
• merge the fragment lists to generate a missing fragments list for the storage group;
• and
• restore fragments for the storage group based, at least in part, on the list of missing fragments.

An apparatus comprising:

• a processor;
• and
• a machine-readable medium having program code executable by the processor to cause the apparatus to,
• based on detecting failure of a first storage node of a plurality of storage nodes in a distributed storage system, determine a set of storage groups which utilized the first storage node for data storage;
• for each storage group in the set of storage groups,
• identify storage nodes of the plurality of storage nodes assigned to the storage group;
• request from two or more of the storage nodes assigned to the storage group a fragment list related to the storage group, wherein the fragment lists are generated based on fragments in storage of the respective storage nodes;
• merge the fragment lists to generate a missing fragments list for the storage group;
• and
• restore fragments for the storage group based, at least in part, on the list of missing fragments.