- Freezing LiveSync on mobile devices.
This commit is contained in:
vorotamoroz
2022-05-06 18:14:45 +09:00
parent 6f76f90075
commit 5db3a374a9
9 changed files with 291 additions and 256 deletions
+246 -228
View File
@@ -28,6 +28,8 @@ import { path2id } from "./utils";
import { Logger } from "./lib/src/logger";
import { checkRemoteVersion, connectRemoteCouchDB, getLastPostFailedBySize } from "./utils_couchdb";
type ReplicationCallback = (e: PouchDB.Core.ExistingDocument<EntryDoc>[]) => Promise<void>;
export class LocalPouchDB {
auth: Credential;
dbname: string;
@@ -52,7 +54,7 @@ export class LocalPouchDB {
remoteLockedAndDeviceNotAccepted = false;
changeHandler: PouchDB.Core.Changes<EntryDoc> = null;
syncHandler: PouchDB.Replication.Sync<EntryDoc> = null;
syncHandler: PouchDB.Replication.Sync<EntryDoc> | PouchDB.Replication.Replication<EntryDoc> = null;
leafArrivedCallbacks: { [key: string]: (() => void)[] } = {};
@@ -61,6 +63,8 @@ export class LocalPouchDB {
docSent = 0;
docSeq = "";
isMobile = false;
cancelHandler<T extends PouchDB.Core.Changes<EntryDoc> | PouchDB.Replication.Sync<EntryDoc> | PouchDB.Replication.Replication<EntryDoc>>(handler: T): T {
if (handler != null) {
handler.removeAllListeners();
@@ -77,7 +81,7 @@ export class LocalPouchDB {
this.localDatabase.removeAllListeners();
}
constructor(settings: RemoteDBSettings, dbname: string) {
constructor(settings: RemoteDBSettings, dbname: string, isMobile: boolean) {
this.auth = {
username: "",
password: "",
@@ -85,6 +89,7 @@ export class LocalPouchDB {
this.dbname = dbname;
this.settings = settings;
this.cancelHandler = this.cancelHandler.bind(this);
this.isMobile = isMobile;
// this.initializeDatabase();
}
@@ -699,73 +704,18 @@ export class LocalPouchDB {
replicateAllToServer(setting: RemoteDBSettings, showingNotice?: boolean) {
return new Promise(async (res, rej) => {
await this.waitForGCComplete();
this.closeReplication();
Logger("send all data to server", LOG_LEVEL.NOTICE);
let notice: WrappedNotice = null;
if (showingNotice) {
notice = NewNotice("Initializing", 0);
}
this.syncStatus = "STARTED";
this.updateInfo();
const uri = setting.couchDB_URI + (setting.couchDB_DBNAME == "" ? "" : "/" + setting.couchDB_DBNAME);
const auth: Credential = {
username: setting.couchDB_USER,
password: setting.couchDB_PASSWORD,
};
const dbret = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI);
if (typeof dbret === "string") {
Logger(`could not connect to ${uri}:${dbret}`, LOG_LEVEL.NOTICE);
if (notice != null) notice.hide();
return rej(`could not connect to ${uri}:${dbret}`);
}
const syncOptionBase: PouchDB.Replication.SyncOptions = {
pull: {
checkpoint: "target",
},
push: {
checkpoint: "source",
},
batches_limit: setting.batches_limit,
batch_size: setting.batch_size,
};
const db = dbret.db;
const totalCount = (await this.localDatabase.info()).doc_count;
//replicate once
const replicate = this.localDatabase.replicate.to(db, { checkpoint: "source", ...syncOptionBase });
replicate
.on("active", () => {
this.syncStatus = "CONNECTED";
this.updateInfo();
if (notice) {
notice.setMessage("CONNECTED");
}
})
.on("change", (e) => {
// no op.
this.docSent += e.docs.length;
this.updateInfo();
notice.setMessage(`SENDING:${e.docs_written}/${totalCount}`);
Logger(`replicateAllToServer: sending..:${e.docs.length}`);
})
.on("complete", (info) => {
this.syncStatus = "COMPLETED";
this.updateInfo();
Logger("replicateAllToServer: Completed", LOG_LEVEL.NOTICE);
this.cancelHandler(replicate);
if (notice != null) notice.hide();
res(true);
})
.on("error", (e) => {
this.syncStatus = "ERRORED";
this.updateInfo();
Logger("replicateAllToServer: Pulling Replication error", LOG_LEVEL.INFO);
Logger(e);
this.cancelHandler(replicate);
if (notice != null) notice.hide();
this.openOneshotReplication(
setting,
showingNotice,
async (e) => {},
false,
(e) => {
if (e === true) res(e);
rej(e);
});
},
true,
false
);
});
}
@@ -789,7 +739,8 @@ export class LocalPouchDB {
Logger("Another replication running.");
return false;
}
const dbret = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI);
const dbret = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI || this.isMobile);
if (typeof dbret === "string") {
Logger(`could not connect to ${uri}: ${dbret}`, LOG_LEVEL.NOTICE);
return false;
@@ -830,189 +781,256 @@ export class LocalPouchDB {
return { db: dbret.db, info: dbret.info, syncOptionBase, syncOption };
}
async openReplication(setting: RemoteDBSettings, keepAlive: boolean, showResult: boolean, callback: (e: PouchDB.Core.ExistingDocument<EntryDoc>[]) => Promise<void>): Promise<boolean> {
return await runWithLock("replicate", false, () => {
return this._openReplication(setting, keepAlive, showResult, callback, false);
});
openReplication(setting: RemoteDBSettings, keepAlive: boolean, showResult: boolean, callback: (e: PouchDB.Core.ExistingDocument<EntryDoc>[]) => Promise<void>) {
if (keepAlive) {
this.openContinuousReplication(setting, showResult, callback, false);
} else {
this.openOneshotReplication(setting, showResult, callback, false, null, false, false);
}
}
replicationActivated(notice: WrappedNotice) {
this.syncStatus = "CONNECTED";
this.updateInfo();
Logger("Replication activated");
if (notice != null) notice.setMessage(`Activated..`);
}
async replicationChangeDetected(e: PouchDB.Replication.SyncResult<EntryDoc>, notice: WrappedNotice, docSentOnStart: number, docArrivedOnStart: number, callback: ReplicationCallback) {
try {
if (e.direction == "pull") {
await callback(e.change.docs);
Logger(`replicated ${e.change.docs_read} doc(s)`);
this.docArrived += e.change.docs.length;
} else {
this.docSent += e.change.docs.length;
}
if (notice != null) {
notice.setMessage(`${this.docSent - docSentOnStart}${this.docArrived - docArrivedOnStart}`);
}
this.updateInfo();
} catch (ex) {
Logger("Replication callback error", LOG_LEVEL.NOTICE);
Logger(ex, LOG_LEVEL.NOTICE);
//
}
}
replicationCompleted(notice: WrappedNotice, showResult: boolean) {
this.syncStatus = "COMPLETED";
this.updateInfo();
Logger("Replication completed", showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
if (notice != null) notice.hide();
this.syncHandler = this.cancelHandler(this.syncHandler);
}
replicationDeniend(notice: WrappedNotice, e: any) {
this.syncStatus = "ERRORED";
this.updateInfo();
this.syncHandler = this.cancelHandler(this.syncHandler);
if (notice != null) notice.hide();
Logger("Replication denied", LOG_LEVEL.NOTICE);
Logger(e);
}
replicationErrored(notice: WrappedNotice, e: any) {
this.syncStatus = "ERRORED";
this.syncHandler = this.cancelHandler(this.syncHandler);
this.updateInfo();
}
replicationPaused(notice: WrappedNotice) {
this.syncStatus = "PAUSED";
this.updateInfo();
if (notice != null) notice.hide();
Logger("replication paused", LOG_LEVEL.VERBOSE);
}
originalSetting: RemoteDBSettings = null;
// last_seq: number = 200;
async _openReplication(setting: RemoteDBSettings, keepAlive: boolean, showResult: boolean, callback: (e: PouchDB.Core.ExistingDocument<EntryDoc>[]) => Promise<void>, retrying: boolean): Promise<boolean> {
const ret = await this.checkReplicationConnectivity(setting, keepAlive, retrying);
if (ret === false) return false;
async openOneshotReplication(
setting: RemoteDBSettings,
showResult: boolean,
callback: (e: PouchDB.Core.ExistingDocument<EntryDoc>[]) => Promise<void>,
retrying: boolean,
callbackDone: (e: boolean | any) => void,
pushOnly: boolean,
pullOnly: boolean
): Promise<boolean> {
if (this.syncHandler != null) {
Logger("Replication is already in progress.", showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
return;
}
Logger("Oneshot Sync begin...");
let thisCallback = callbackDone;
const ret = await this.checkReplicationConnectivity(setting, true, retrying);
let notice: WrappedNotice = null;
if (ret === false) {
Logger("Could not connect to server.", LOG_LEVEL.NOTICE);
return;
}
if (showResult) {
notice = NewNotice("Looking for the point last synchronized point.", 0);
}
const { db, syncOptionBase, syncOption } = ret;
//replicate once
const { db, syncOptionBase } = ret;
this.syncStatus = "STARTED";
this.updateInfo();
let resolved = false;
const docArrivedOnStart = this.docArrived;
const docSentOnStart = this.docSent;
const _openReplicationSync = () => {
Logger("Sync Main Started");
if (!retrying) {
this.originalSetting = setting;
}
this.syncHandler = this.cancelHandler(this.syncHandler);
this.syncHandler = this.localDatabase.sync<EntryDoc>(db, {
...syncOption,
pull: {
checkpoint: "target",
},
push: {
checkpoint: "source",
},
});
if (!retrying) {
// If initial replication, save setting to rollback
this.originalSetting = setting;
}
this.syncHandler = this.cancelHandler(this.syncHandler);
if (!pushOnly && !pullOnly) {
this.syncHandler = this.localDatabase.sync(db, { checkpoint: "target", ...syncOptionBase });
this.syncHandler
.on("active", () => {
this.syncStatus = "CONNECTED";
this.updateInfo();
Logger("Replication activated");
if (notice != null) notice.setMessage(`Activated..`);
})
.on("change", async (e) => {
try {
if (e.direction == "pull") {
await callback(e.change.docs);
Logger(`replicated ${e.change.docs_read} doc(s)`);
this.docArrived += e.change.docs.length;
} else {
this.docSent += e.change.docs.length;
}
if (notice != null) {
notice.setMessage(`${this.docSent - docSentOnStart}${this.docArrived - docArrivedOnStart}`);
}
this.updateInfo();
} catch (ex) {
Logger("Replication callback error", LOG_LEVEL.NOTICE);
Logger(ex, LOG_LEVEL.NOTICE);
}
// re-connect to retry with original setting
await this.replicationChangeDetected(e, notice, docSentOnStart, docArrivedOnStart, callback);
if (retrying) {
if (this.docSent - docSentOnStart + (this.docArrived - docArrivedOnStart) > this.originalSetting.batch_size * 2) {
// restore sync values
// restore configration.
Logger("Back into original settings once.");
if (notice != null) notice.hide();
this.syncHandler = this.cancelHandler(this.syncHandler);
this._openReplication(this.originalSetting, keepAlive, showResult, callback, false);
this.openOneshotReplication(this.originalSetting, showResult, callback, false, callbackDone, pushOnly, pullOnly);
}
}
})
.on("complete", (e) => {
this.syncStatus = "COMPLETED";
this.updateInfo();
Logger("Replication completed", showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
if (notice != null) notice.hide();
if (!keepAlive) {
this.syncHandler = this.cancelHandler(this.syncHandler);
// if keep alive runnning, resolve here,
this.replicationCompleted(notice, showResult);
if (thisCallback != null) {
thisCallback(true);
}
});
} else if (pullOnly) {
this.syncHandler = this.localDatabase.replicate.to(db, { checkpoint: "target", ...syncOptionBase });
this.syncHandler
.on("change", async (e) => {
await this.replicationChangeDetected({ direction: "pull", change: e }, notice, docSentOnStart, docArrivedOnStart, callback);
if (retrying) {
if (this.docSent - docSentOnStart + (this.docArrived - docArrivedOnStart) > this.originalSetting.batch_size * 2) {
// restore configration.
Logger("Back into original settings once.");
if (notice != null) notice.hide();
this.syncHandler = this.cancelHandler(this.syncHandler);
this.openOneshotReplication(this.originalSetting, showResult, callback, false, callbackDone, pushOnly, pullOnly);
}
}
})
.on("denied", (e) => {
this.syncStatus = "ERRORED";
this.updateInfo();
this.syncHandler = this.cancelHandler(this.syncHandler);
if (notice != null) notice.hide();
Logger("Replication denied", LOG_LEVEL.NOTICE);
.on("complete", (e) => {
this.replicationCompleted(notice, showResult);
if (thisCallback != null) {
thisCallback(true);
}
});
} else if (pushOnly) {
this.syncHandler = this.localDatabase.replicate.to(db, { checkpoint: "target", ...syncOptionBase });
this.syncHandler.on("complete", (e) => {
this.replicationCompleted(notice, showResult);
if (thisCallback != null) {
thisCallback(true);
}
});
}
this.syncHandler
.on("active", () => this.replicationActivated(notice))
.on("denied", (e) => {
this.replicationDeniend(notice, e);
if (thisCallback != null) {
thisCallback(e);
}
})
.on("error", (e) => {
this.replicationErrored(notice, e);
Logger("Replication stopped.", showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
if (notice != null) notice.hide();
if (getLastPostFailedBySize()) {
// Duplicate settings for smaller batch.
const xsetting: RemoteDBSettings = JSON.parse(JSON.stringify(setting));
xsetting.batch_size = Math.ceil(xsetting.batch_size / 2) + 2;
xsetting.batches_limit = Math.ceil(xsetting.batches_limit / 2) + 2;
if (xsetting.batch_size <= 5 && xsetting.batches_limit <= 5) {
Logger("We can't replicate more lower value.", showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
} else {
Logger(`Retry with lower batch size:${xsetting.batch_size}/${xsetting.batches_limit}`, showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
thisCallback = null;
this.openOneshotReplication(xsetting, showResult, callback, true, callbackDone, pushOnly, pullOnly);
}
} else {
Logger("Replication error", LOG_LEVEL.NOTICE);
Logger(e);
})
.on("error", (e) => {
this.syncStatus = "ERRORED";
this.syncHandler = this.cancelHandler(this.syncHandler);
this.updateInfo();
if (notice != null) notice.hide();
if (getLastPostFailedBySize()) {
if (keepAlive) {
Logger("Replication stopped.", LOG_LEVEL.NOTICE);
} else {
// Duplicate settings for smaller batch.
const xsetting: RemoteDBSettings = JSON.parse(JSON.stringify(setting));
xsetting.batch_size = Math.ceil(xsetting.batch_size / 2);
xsetting.batches_limit = Math.ceil(xsetting.batches_limit / 2);
if (xsetting.batch_size <= 3 || xsetting.batches_limit <= 3) {
Logger("We can't replicate more lower value.", showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
} else {
Logger(`Retry with lower batch size:${xsetting.batch_size}/${xsetting.batches_limit}`, showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
this._openReplication(xsetting, keepAlive, showResult, callback, true);
}
if (thisCallback != null) {
thisCallback(e);
}
})
.on("paused", (e) => this.replicationPaused(notice));
}
openContinuousReplication(setting: RemoteDBSettings, showResult: boolean, callback: (e: PouchDB.Core.ExistingDocument<EntryDoc>[]) => Promise<void>, retrying: boolean) {
if (this.syncHandler != null) {
Logger("Replication is already in progress.", showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
return;
}
Logger("Before LiveSync, start OneShot once...");
this.openOneshotReplication(
setting,
showResult,
callback,
false,
async () => {
Logger("LiveSync begin...");
const ret = await this.checkReplicationConnectivity(setting, true, true);
let notice: WrappedNotice = null;
if (ret === false) {
Logger("Could not connect to server.", showResult ? LOG_LEVEL.NOTICE : LOG_LEVEL.INFO);
return;
}
if (showResult) {
notice = NewNotice("Looking for the point last synchronized point.", 0);
}
const { db, syncOption } = ret;
this.syncStatus = "STARTED";
this.updateInfo();
const docArrivedOnStart = this.docArrived;
const docSentOnStart = this.docSent;
if (!retrying) {
//TODO if successfly saven, roll back org setting.
this.originalSetting = setting;
}
this.syncHandler = this.cancelHandler(this.syncHandler);
this.syncHandler = this.localDatabase.sync<EntryDoc>(db, {
...syncOption,
pull: {
checkpoint: "target",
},
push: {
checkpoint: "source",
},
});
this.syncHandler
.on("active", () => this.replicationActivated(notice))
.on("change", async (e) => {
await this.replicationChangeDetected(e, notice, docSentOnStart, docArrivedOnStart, callback);
if (retrying) {
if (this.docSent - docSentOnStart + (this.docArrived - docArrivedOnStart) > this.originalSetting.batch_size * 2) {
// restore sync values
Logger("Back into original settings once.");
if (notice != null) notice.hide();
this.syncHandler = this.cancelHandler(this.syncHandler);
this.openContinuousReplication(this.originalSetting, showResult, callback, false);
}
}
} else {
Logger("Replication error", LOG_LEVEL.NOTICE);
Logger(e);
}
})
.on("paused", (e) => {
this.syncStatus = "PAUSED";
this.updateInfo();
if (notice != null) notice.hide();
Logger("replication paused", LOG_LEVEL.VERBOSE);
if (keepAlive && !resolved) {
// if keep alive runnning, resolve here,
resolved = true;
}
// Logger(e);
});
return this.syncHandler;
};
if (!keepAlive) {
await _openReplicationSync();
return true;
}
this.syncHandler = this.cancelHandler(this.syncHandler);
Logger("Pull before replicate.");
Logger(await this.localDatabase.info(), LOG_LEVEL.VERBOSE);
Logger(await db.info(), LOG_LEVEL.VERBOSE);
let replicate: PouchDB.Replication.Replication<EntryDoc>;
try {
replicate = this.localDatabase.replicate.from(db, { checkpoint: "target", ...syncOptionBase });
replicate
.on("active", () => {
this.syncStatus = "CONNECTED";
this.updateInfo();
Logger("Replication pull activated.");
})
.on("change", async (e) => {
// when in first run, replication will send us tombstone data
// and in normal cases, all leavs should sent before the entry that contains these item.
// so skip to completed all, we should treat all changes.
try {
await callback(e.docs);
this.docArrived += e.docs.length;
this.updateInfo();
Logger(`pulled ${e.docs.length} doc(s)`);
if (notice != null) {
notice.setMessage(`Replication pulled:${e.docs_read}`);
}
} catch (ex) {
Logger("Replication callback error", LOG_LEVEL.NOTICE);
Logger(ex, LOG_LEVEL.NOTICE);
}
});
this.syncStatus = "COMPLETED";
this.updateInfo();
this.cancelHandler(replicate);
this.syncHandler = this.cancelHandler(this.syncHandler);
Logger("Replication pull completed.");
_openReplicationSync();
return true;
} catch (ex) {
this.syncStatus = "ERRORED";
this.updateInfo();
Logger("Pulling Replication error:", LOG_LEVEL.NOTICE);
Logger(ex, LOG_LEVEL.NOTICE);
this.cancelHandler(replicate);
this.syncHandler = this.cancelHandler(this.syncHandler);
if (notice != null) notice.hide();
throw ex;
}
})
.on("complete", (e) => this.replicationCompleted(notice, showResult))
.on("denied", (e) => this.replicationDeniend(notice, e))
.on("error", (e) => {
this.replicationErrored(notice, e);
Logger("Replication stopped.", LOG_LEVEL.NOTICE);
})
.on("paused", (e) => this.replicationPaused(notice));
},
false,
true
);
}
originalSetting: RemoteDBSettings = null;
closeReplication() {
this.syncStatus = "CLOSED";
this.updateInfo();
@@ -1039,7 +1057,7 @@ export class LocalPouchDB {
username: setting.couchDB_USER,
password: setting.couchDB_PASSWORD,
};
const con = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI);
const con = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI || this.isMobile);
if (typeof con == "string") return;
try {
await con.db.destroy();
@@ -1057,7 +1075,7 @@ export class LocalPouchDB {
username: setting.couchDB_USER,
password: setting.couchDB_PASSWORD,
};
const con2 = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI);
const con2 = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI || this.isMobile);
if (typeof con2 === "string") return;
Logger("Remote Database Created or Connected", LOG_LEVEL.NOTICE);
}
@@ -1067,7 +1085,7 @@ export class LocalPouchDB {
username: setting.couchDB_USER,
password: setting.couchDB_PASSWORD,
};
const dbret = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI);
const dbret = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI || this.isMobile);
if (typeof dbret === "string") {
Logger(`could not connect to ${uri}:${dbret}`, LOG_LEVEL.NOTICE);
return;
@@ -1101,7 +1119,7 @@ export class LocalPouchDB {
username: setting.couchDB_USER,
password: setting.couchDB_PASSWORD,
};
const dbret = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI);
const dbret = await connectRemoteCouchDB(uri, auth, setting.disableRequestURI || this.isMobile);
if (typeof dbret === "string") {
Logger(`could not connect to ${uri}:${dbret}`, LOG_LEVEL.NOTICE);
return;