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indexer.ts
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indexer.ts
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import gql from 'graphql-tag'
import jayson, { Client as RpcClient } from 'jayson/promise'
import { BigNumber, utils } from 'ethers'
import {
formatGRT,
Logger,
SubgraphDeploymentID,
} from '@graphprotocol/common-ts'
import {
IndexingRuleAttributes,
IndexerManagementClient,
INDEXING_RULE_GLOBAL,
indexerError,
IndexerErrorCode,
POIDisputeAttributes,
IndexingStatusResolver,
IndexingStatus,
SubgraphIdentifierType,
parseGraphQLIndexingStatus,
COST_MODEL_GLOBAL,
CostModelAttributes,
ActionFilter,
ActionResult,
ActionItem,
Action,
ActionStatus,
AllocationManagementMode,
ActionInput,
ActionType,
Allocation,
AllocationDecision,
} from '@graphprotocol/indexer-common'
import fs from 'fs'
import { CombinedError } from '@urql/core'
import pMap from 'p-map'
const POI_DISPUTES_CONVERTERS_FROM_GRAPHQL: Record<
keyof POIDisputeAttributes,
(x: never) => string | BigNumber | number | null
> = {
allocationID: x => x,
subgraphDeploymentID: x => x,
allocationIndexer: x => x,
allocationAmount: x => x,
allocationProof: x => x,
closedEpoch: x => +x,
closedEpochStartBlockHash: x => x,
closedEpochStartBlockNumber: x => +x,
closedEpochReferenceProof: x => x,
previousEpochStartBlockHash: x => x,
previousEpochStartBlockNumber: x => +x,
previousEpochReferenceProof: x => x,
status: x => x,
}
/**
* Parses a POI dispute returned from the indexer management GraphQL
* API into normalized form.
*/
const disputeFromGraphQL = (
dispute: Partial<POIDisputeAttributes>,
): POIDisputeAttributes => {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const obj = {} as any
for (const [key, value] of Object.entries(dispute)) {
if (key === '__typename') {
continue
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
obj[key] = (POI_DISPUTES_CONVERTERS_FROM_GRAPHQL as any)[key](value)
}
return obj as POIDisputeAttributes
}
interface indexNode {
id: string
deployments: string[]
}
export class Indexer {
statusResolver: IndexingStatusResolver
rpc: RpcClient
indexerManagement: IndexerManagementClient
logger: Logger
indexNodeIDs: string[]
defaultAllocationAmount: BigNumber
indexerAddress: string
allocationManagementMode: AllocationManagementMode
constructor(
logger: Logger,
adminEndpoint: string,
statusResolver: IndexingStatusResolver,
indexerManagement: IndexerManagementClient,
indexNodeIDs: string[],
defaultAllocationAmount: BigNumber,
indexerAddress: string,
allocationManagementMode: AllocationManagementMode,
) {
this.indexerManagement = indexerManagement
this.statusResolver = statusResolver
this.logger = logger
this.indexerAddress = indexerAddress
this.allocationManagementMode = allocationManagementMode
if (adminEndpoint.startsWith('https')) {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
this.rpc = jayson.Client.https(adminEndpoint as any)
} else {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
this.rpc = jayson.Client.http(adminEndpoint as any)
}
this.indexNodeIDs = indexNodeIDs
this.defaultAllocationAmount = defaultAllocationAmount
}
async connect(): Promise<void> {
try {
this.logger.info(`Check if indexing status API is available`)
const currentDeployments = await this.subgraphDeployments()
this.logger.info(`Successfully connected to indexing status API`, {
currentDeployments: currentDeployments.map(
deployment => deployment.display,
),
})
} catch (error) {
const err = indexerError(IndexerErrorCode.IE024, error)
this.logger.error(`Failed to connect to indexing status API`, {
err,
})
throw err
}
}
async subgraphDeployments(): Promise<SubgraphDeploymentID[]> {
try {
const result = await this.statusResolver.statuses
.query(
gql`
{
indexingStatuses {
subgraphDeployment: subgraph
node
}
}
`,
)
.toPromise()
if (result.error) {
throw result.error
}
return result.data.indexingStatuses
.filter((status: { subgraphDeployment: string; node: string }) => {
return status.node && status.node !== 'removed'
})
.map((status: { subgraphDeployment: string; node: string }) => {
return new SubgraphDeploymentID(status.subgraphDeployment)
})
} catch (error) {
const err = indexerError(IndexerErrorCode.IE018, error)
this.logger.error(`Failed to query indexing status API`, { err })
throw err
}
}
async indexNodes(): Promise<indexNode[]> {
try {
const result = await this.statusResolver.statuses
.query(
gql`
{
indexingStatuses {
subgraphDeployment: subgraph
node
}
}
`,
)
.toPromise()
if (result.error) {
throw result.error
}
const indexNodes: indexNode[] = []
result.data.indexingStatuses.map(
(status: { subgraphDeployment: string; node: string }) => {
const node = indexNodes.find(node => node.id === status.node)
node
? node.deployments.push(status.subgraphDeployment)
: indexNodes.push({
id: status.node,
deployments: [status.subgraphDeployment],
})
},
)
this.logger.trace(`Queried index nodes`, {
indexNodes,
})
return indexNodes
} catch (error) {
const err = indexerError(IndexerErrorCode.IE018, error)
this.logger.error(
`Failed to query index nodes API (Should get a different IE?)`,
{ err },
)
throw err
}
}
async indexingRules(merged: boolean): Promise<IndexingRuleAttributes[]> {
try {
const result = await this.indexerManagement
.query(
gql`
query indexingRules($merged: Boolean!) {
indexingRules(merged: $merged) {
identifier
identifierType
allocationAmount
allocationLifetime
autoRenewal
parallelAllocations
maxAllocationPercentage
minSignal
maxSignal
minStake
minAverageQueryFees
custom
decisionBasis
requireSupported
}
}
`,
{ merged },
)
.toPromise()
if (result.error) {
throw result.error
}
this.logger.trace('Fetched indexing rules', {
count: result.data.indexingRules.length,
rules: result.data.indexingRules.map((rule: IndexingRuleAttributes) => {
return {
identifier: rule.identifier,
identifierType: rule.identifierType,
decisionBasis: rule.decisionBasis,
}
}),
})
return result.data.indexingRules
} catch (error) {
const err = indexerError(IndexerErrorCode.IE025, error)
this.logger.error(`Failed to query indexer management API`, { err })
throw err
}
}
async ensureGlobalIndexingRule(): Promise<void> {
try {
const globalRule = await this.indexerManagement
.query(
gql`
query indexingRule($identifier: String!) {
indexingRule(identifier: $identifier, merged: false) {
identifier
identifierType
allocationAmount
decisionBasis
requireSupported
}
}
`,
{ identifier: INDEXING_RULE_GLOBAL },
)
.toPromise()
if (!globalRule.data.indexingRule) {
this.logger.info(`Creating default "global" indexing rule`)
const defaults = {
identifier: INDEXING_RULE_GLOBAL,
identifierType: SubgraphIdentifierType.GROUP,
allocationAmount: this.defaultAllocationAmount.toString(),
parallelAllocations: 1,
decisionBasis: 'rules',
requireSupported: true,
}
const defaultGlobalRule = await this.indexerManagement
.mutation(
gql`
mutation setIndexingRule($rule: IndexingRuleInput!) {
setIndexingRule(rule: $rule) {
identifier
identifierType
allocationAmount
allocationLifetime
autoRenewal
parallelAllocations
maxAllocationPercentage
minSignal
maxSignal
minStake
minAverageQueryFees
custom
decisionBasis
requireSupported
}
}
`,
{ rule: defaults },
)
.toPromise()
if (defaultGlobalRule.error) {
throw defaultGlobalRule.error
}
this.logger.info(`Created default "global" indexing rule`, {
rule: defaultGlobalRule.data.setIndexingRule,
})
}
} catch (error) {
const err = indexerError(IndexerErrorCode.IE017, error)
this.logger.error('Failed to ensure default "global" indexing rule', {
err,
})
throw err
}
}
async costModels(): Promise<CostModelAttributes[]> {
try {
const result = await this.indexerManagement
.query(
gql`
query costModels {
costModels {
deployment
model
variables
}
}
`,
)
.toPromise()
if (result.error) {
throw result.error
}
return result.data.costModels
} catch (error) {
this.logger.error(`Failed to query indexer management API`, { error })
throw error
}
}
async ensureGlobalCostModel(): Promise<void> {
try {
const globalCostModel = await this.indexerManagement
.query(
gql`
query costModel($deployment: String!) {
costModel(deployment: $deployment) {
deployment
model
variables
}
}
`,
{
deployment: COST_MODEL_GLOBAL,
},
)
.toPromise()
if (!globalCostModel.data.costModel) {
this.logger.info(
`Looking for a cost model defined at 'default.agora', if it exists then create a default "global" cost model`,
)
let defaults = null
try {
defaults = {
deployment: COST_MODEL_GLOBAL,
model: fs.readFileSync('default.agora', 'utf8').trim(),
variables: null,
}
} catch (err) {
this.logger.error(
`Failed to load default cost model": ${err.message}`,
)
}
const defaultGlobalCostModel = await this.indexerManagement
.mutation(
gql`
mutation setCostModel($costModel: CostModelInput!) {
setCostModel(costModel: $costModel) {
deployment
model
variables
}
}
`,
{ costModel: defaults },
)
.toPromise()
if (defaultGlobalCostModel.error) {
throw defaultGlobalCostModel.error
}
this.logger.info(`Created default "global" cost model`, {
costModel: defaultGlobalCostModel.data.setCostModel,
})
}
} catch (error) {
this.logger.error(`Failed to ensure default "global" cost model`)
}
}
async storePoiDisputes(
disputes: POIDisputeAttributes[],
): Promise<POIDisputeAttributes[]> {
try {
const result = await this.indexerManagement
.mutation(
gql`
mutation storeDisputes($disputes: [POIDisputeInput!]!) {
storeDisputes(disputes: $disputes) {
allocationID
subgraphDeploymentID
allocationIndexer
allocationAmount
allocationProof
closedEpoch
closedEpochStartBlockHash
closedEpochStartBlockNumber
closedEpochReferenceProof
previousEpochStartBlockHash
previousEpochStartBlockNumber
previousEpochReferenceProof
status
}
}
`,
{ disputes: disputes },
)
.toPromise()
if (result.error) {
throw result.error
}
return result.data.storeDisputes.map(
// eslint-disable-next-line @typescript-eslint/no-explicit-any
(dispute: Record<string, any>) => {
return disputeFromGraphQL(dispute)
},
)
} catch (error) {
const err = indexerError(IndexerErrorCode.IE039, error)
this.logger.error('Failed to store potential POI disputes', {
err,
})
throw err
}
}
async fetchPOIDisputes(
status: string,
minClosedEpoch: number,
): Promise<POIDisputeAttributes[]> {
try {
const result = await this.indexerManagement
.query(
gql`
query disputes($status: String!, $minClosedEpoch: Int!) {
disputes(status: $status, minClosedEpoch: $minClosedEpoch) {
allocationID
subgraphDeploymentID
allocationIndexer
allocationAmount
allocationProof
closedEpoch
closedEpochStartBlockHash
closedEpochStartBlockNumber
closedEpochReferenceProof
previousEpochStartBlockHash
previousEpochStartBlockNumber
previousEpochReferenceProof
status
}
}
`,
{
status,
minClosedEpoch,
},
)
.toPromise()
if (result.error) {
throw result.error
}
return result.data.disputes.map(
// eslint-disable-next-line @typescript-eslint/no-explicit-any
(dispute: Record<string, any>) => {
return disputeFromGraphQL(dispute)
},
)
} catch (error) {
const err = indexerError(IndexerErrorCode.IE039, error)
this.logger.error('Failed to store potential POI disputes', {
err,
})
throw err
}
}
async indexingStatus(
deployment: SubgraphDeploymentID,
): Promise<IndexingStatus> {
try {
const result = await this.statusResolver.statuses
.query(
gql`
query indexingStatus($deployments: [String!]!) {
indexingStatuses(subgraphs: $deployments) {
subgraphDeployment: subgraph
synced
health
fatalError {
handler
message
}
chains {
network
... on EthereumIndexingStatus {
latestBlock {
number
hash
}
chainHeadBlock {
number
hash
}
}
}
}
}
`,
{ deployments: [deployment.ipfsHash] },
)
.toPromise()
this.logger.debug(`Query indexing status`, {
deployment,
statuses: result.data,
})
return (
result.data.indexingStatuses
// eslint-disable-next-line @typescript-eslint/no-explicit-any
.map((status: any) => parseGraphQLIndexingStatus(status))
.pop()
)
} catch (error) {
const err = indexerError(IndexerErrorCode.IE018, error)
this.logger.error(`Failed to query indexing status API`, {
err,
})
throw err
}
}
async fetchActions(actionFilter: ActionFilter): Promise<ActionResult[]> {
const result = await this.indexerManagement
.query(
gql`
query actions($filter: ActionFilter!) {
actions(filter: $filter) {
id
type
allocationID
deploymentID
amount
poi
force
source
reason
priority
transaction
status
failureReason
}
}
`,
{ filter: actionFilter },
)
.toPromise()
if (result.error) {
throw result.error
}
return result.data.actions
}
async queueAction(action: ActionItem): Promise<Action[]> {
let status = ActionStatus.QUEUED
switch (this.allocationManagementMode) {
case AllocationManagementMode.MANUAL:
throw Error(
`Cannot queue actions when AllocationManagementMode = 'MANUAL'`,
)
case AllocationManagementMode.AUTO:
status = ActionStatus.APPROVED
break
case AllocationManagementMode.OVERSIGHT:
status = ActionStatus.QUEUED
}
const actionInput = {
...action.params,
status,
type: action.type,
source: 'indexerAgent',
reason: action.reason,
priority: 0,
} as ActionInput
const actionResult = await this.indexerManagement
.mutation(
gql`
mutation queueActions($actions: [ActionInput!]!) {
queueActions(actions: $actions) {
id
type
deploymentID
source
reason
priority
status
}
}
`,
{ actions: [actionInput] },
)
.toPromise()
if (actionResult.error) {
if (
actionResult.error instanceof CombinedError &&
actionResult.error.message.includes('Duplicate')
) {
this.logger.warn(
`Action not queued: Already a queued action targeting ${actionInput.deploymentID} from another source`,
{ action },
)
return []
}
throw actionResult.error
}
if (actionResult.data.queueActions.length > 0) {
this.logger.info(`Queued ${action.type} action for execution`, {
queuedAction: actionResult.data.queueActions,
})
}
return actionResult.data.queueActions
}
async createAllocation(
logger: Logger,
deploymentAllocationDecision: AllocationDecision,
mostRecentlyClosedAllocation: Allocation,
): Promise<void> {
const desiredAllocationAmount = deploymentAllocationDecision.ruleMatch.rule
?.allocationAmount
? BigNumber.from(
deploymentAllocationDecision.ruleMatch.rule.allocationAmount,
)
: this.defaultAllocationAmount
logger.info(`No active allocation for deployment, creating one now`, {
allocationAmount: formatGRT(desiredAllocationAmount),
})
// Skip allocating if the previous allocation for this deployment was closed with a null or 0x00 POI
if (
mostRecentlyClosedAllocation &&
mostRecentlyClosedAllocation.poi === utils.hexlify(Array(32).fill(0))
) {
logger.warn(
`Skipping allocation to this deployment as the last allocation to it was closed with a zero POI`,
{
deployment: deploymentAllocationDecision.deployment,
closedAllocation: mostRecentlyClosedAllocation.id,
},
)
return
}
// Send AllocateAction to the queue
await this.queueAction({
params: {
deploymentID: deploymentAllocationDecision.deployment.ipfsHash,
amount: formatGRT(desiredAllocationAmount),
},
type: ActionType.ALLOCATE,
reason: deploymentAllocationDecision.reasonString(),
})
return
}
async closeEligibleAllocations(
logger: Logger,
deploymentAllocationDecision: AllocationDecision,
activeDeploymentAllocations: Allocation[],
epoch: number,
): Promise<void> {
const activeDeploymentAllocationsEligibleForClose =
activeDeploymentAllocations
.filter(allocation => allocation.createdAtEpoch < epoch)
.map(allocation => allocation.id)
// Make sure to close all active allocations on the way out
if (activeDeploymentAllocationsEligibleForClose.length > 0) {
logger.info(
`Deployment is not (or no longer) worth allocating towards, close allocation`,
{
eligibleForClose: activeDeploymentAllocationsEligibleForClose,
},
)
await pMap(
// We can only close allocations from a previous epoch;
// try the others again later
activeDeploymentAllocationsEligibleForClose,
async allocation => {
// Send unallocate action to the queue
await this.queueAction({
params: {
allocationID: allocation,
deploymentID: deploymentAllocationDecision.deployment.ipfsHash,
poi: undefined,
force: false,
},
type: ActionType.UNALLOCATE,
reason: deploymentAllocationDecision.reasonString(),
} as ActionItem)
},
{ concurrency: 1 },
)
}
}
async refreshExpiredAllocations(
logger: Logger,
deploymentAllocationDecision: AllocationDecision,
expiredAllocations: Allocation[],
): Promise<void> {
if (deploymentAllocationDecision.ruleMatch.rule?.autoRenewal) {
logger.info(`Reallocating expired allocations`, {
number: expiredAllocations.length,
expiredAllocations: expiredAllocations.map(allocation => allocation.id),
})
const desiredAllocationAmount = deploymentAllocationDecision.ruleMatch
.rule?.allocationAmount
? BigNumber.from(
deploymentAllocationDecision.ruleMatch.rule.allocationAmount,
)
: this.defaultAllocationAmount
// Queue reallocate actions to be picked up by the worker
await pMap(expiredAllocations, async allocation => {
await this.queueAction({
params: {
allocationID: allocation.id,
deploymentID: deploymentAllocationDecision.deployment.ipfsHash,
amount: formatGRT(desiredAllocationAmount),
},
type: ActionType.REALLOCATE,
reason: `${deploymentAllocationDecision.reasonString()}:allocationExpiring`, // Need to update to include 'ExpiringSoon'
})
})
} else {
logger.info(
`Skipping reallocating expired allocation since the corresponding rule has 'autoRenewal' = False`,
{
number: expiredAllocations.length,
expiredAllocations: expiredAllocations.map(
allocation => allocation.id,
),
},
)
}
return
}
async create(name: string): Promise<void> {
try {
this.logger.info(`Create subgraph name`, { name })
const response = await this.rpc.request('subgraph_create', { name })
if (response.error) {
throw response.error
}
this.logger.info(`Successfully created subgraph name`, { name })
} catch (error) {
if (error.message.includes('already exists')) {
this.logger.debug(`Subgraph name already exists`, { name })
return
}
throw error
}
}
async deploy(
name: string,
deployment: SubgraphDeploymentID,
node_id: string,
): Promise<void> {
try {
this.logger.info(`Deploy subgraph deployment`, {
name,
deployment: deployment.display,
})
const response = await this.rpc.request('subgraph_deploy', {
name,
ipfs_hash: deployment.ipfsHash,
node_id: node_id,
})
if (response.error) {
throw response.error
}
this.logger.info(`Successfully deployed subgraph deployment`, {
name,
deployment: deployment.display,
})
} catch (error) {
const err = indexerError(IndexerErrorCode.IE026, error)
this.logger.error(`Failed to deploy subgraph deployment`, {
name,
deployment: deployment.display,
err,
})
throw err
}
}
async remove(deployment: SubgraphDeploymentID): Promise<void> {
try {
this.logger.info(`Remove subgraph deployment`, {
deployment: deployment.display,
})
const response = await this.rpc.request('subgraph_reassign', {
node_id: 'removed',
ipfs_hash: deployment.ipfsHash,
})
if (response.error) {
throw response.error
}
this.logger.info(`Successfully removed subgraph deployment`, {
deployment: deployment.display,
})
} catch (error) {
const err = indexerError(IndexerErrorCode.IE027, error)
this.logger.error(`Failed to remove subgraph deployment`, {
deployment: deployment.display,
err,
})
}
}
async reassign(
deployment: SubgraphDeploymentID,
node: string,
): Promise<void> {
try {
this.logger.info(`Reassign subgraph deployment`, {
deployment: deployment.display,
node,
})
const response = await this.rpc.request('subgraph_reassign', {
node_id: node,
ipfs_hash: deployment.ipfsHash,
})
if (response.error) {
throw response.error
}
} catch (error) {
if (error.message.includes('unchanged')) {
this.logger.debug(`Subgraph deployment assignment unchanged`, {
deployment: deployment.display,
node,
})
return
}
const err = indexerError(IndexerErrorCode.IE028, error)
this.logger.error(`Failed to reassign subgraph deployment`, {
deployment: deployment.display,
err,
})
throw err
}
}
async ensure(name: string, deployment: SubgraphDeploymentID): Promise<void> {
try {
// Randomly assign to unused nodes if they exist,
// otherwise use the node with lowest deployments assigned
const indexNodes = (await this.indexNodes()).filter(
(node: { id: string; deployments: Array<string> }) => {
return node.id && node.id !== 'removed'
},
)
const usedIndexNodeIDs = indexNodes.map(node => node.id)
const unusedNodes = this.indexNodeIDs.filter(
nodeID => !(nodeID in usedIndexNodeIDs),
)
const targetNode = unusedNodes
? unusedNodes[Math.floor(Math.random() * unusedNodes.length)]
: indexNodes.sort((nodeA, nodeB) => {
return nodeA.deployments.length - nodeB.deployments.length
})[0].id
await this.create(name)
await this.deploy(name, deployment, targetNode)
await this.reassign(deployment, targetNode)
} catch (error) {
const err = indexerError(IndexerErrorCode.IE020, error)
this.logger.error(`Failed to ensure subgraph deployment is indexing`, {
name,
deployment: deployment.display,
err,
})
}
}
}