Hello,

1) I'm not sure that I've cached your idea right, but is this method
are you looking for?
org.apache.ignite.IgniteCache#lostPartitions [1]

2) I doubt that it is possible since resetLostPartitions method
accepts only cache names.

[1] 
https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/IgniteCache.html#lostPartitions--

On Tue, 17 Sep 2019 at 16:14, Akash Shinde <[email protected]> wrote:
>
> Can someone please help me on this?
>
> Thanks,
> Akash
>
> On Tue, Sep 17, 2019 at 10:40 AM Akash Shinde <[email protected]> wrote:
>>
>> Hi,
>> I am trying to recover lost data in case of partition loss.
>> In my ignite configuration native persistence is off.
>> I have started event listener on EVT_CACHE_REBALANCE_PART_DATA_LOST  event. 
>> This listener will get lost partition list using cache.lostPartitions() 
>> method.
>> The issue is that listener gets call per partition. So if there 100 
>> partition loss due to single node termination then 100 time this listener 
>> will get called and last multiple calls to the listener will fetch all lost 
>> partition list.
>>
>> Lets take a scenario:
>> Started two server nodes  Node A and Node B.  Started cache with partition 
>> mode and the number of backup set to 0 in order to facilitate simulation of 
>> partition loss scenarios
>> Started event listener on both node listening  to  
>> EVT_CACHE_REBALANCE_PART_DATA_LOST  event.
>>
>> Number of partitions on node A = 500
>> Number of partitions on node B = 524
>>
>> Now stop node B. After termination of node B listener running on node A gets 
>> call multiple time per partition.
>> I have printed logs on listener
>>
>> primary partition size after loss:1024
>> Lost partion Nos.1
>> IgniteThread [compositeRwLockIdx=1, stripe=-1, plc=-1, 
>> name=exchange-worker-#42%springDataNode%]::[0]
>> Event Detail:CacheRebalancingEvent [cacheName=ASSET_GROUP_CACHE, part=0, 
>> discoNode=TcpDiscoveryNode [id=1bb17828-3556-499f-a4e6-98cfdc1d11fb, 
>> addrs=[0:0:0:0:0:0:0:1, 10.113.14.98, 127.0.0.1], sockAddrs=[], 
>> discPort=47501, order=2, intOrder=2, lastExchangeTime=1568357181089, 
>> loc=false, ver=2.6.0#20180710-sha1:669feacc, isClient=false], 
>> discoEvtType=12, discoTs=1568357376683, discoEvtName=NODE_FAILED, 
>> nodeId8=499400ac, msg=Cache rebalancing event., 
>> type=CACHE_REBALANCE_PART_DATA_LOST, tstamp=1568357376714]
>> primary partition size after loss:1024
>> Lost partion Nos.2
>> IgniteThread [compositeRwLockIdx=1, stripe=-1, plc=-1, 
>> name=exchange-worker-#42%springDataNode%]::[0, 1]
>> Event Detail:CacheRebalancingEvent [cacheName=ASSET_GROUP_CACHE, part=1, 
>> discoNode=TcpDiscoveryNode [id=1bb17828-3556-499f-a4e6-98cfdc1d11fb, 
>> addrs=[0:0:0:0:0:0:0:1, 10.113.14.98, 127.0.0.1], sockAddrs=[], 
>> discPort=47501, order=2, intOrder=2, lastExchangeTime=1568357181089, 
>> loc=false, ver=2.6.0#20180710-sha1:669feacc, isClient=false], 
>> discoEvtType=12, discoTs=1568357376683, discoEvtName=NODE_FAILED, 
>> nodeId8=499400ac, msg=Cache rebalancing event., 
>> type=CACHE_REBALANCE_PART_DATA_LOST, tstamp=1568357376726]
>> primary partition size after loss:1024
>> Lost partion Nos.3
>> IgniteThread [compositeRwLockIdx=1, stripe=-1, plc=-1, 
>> name=exchange-worker-#42%springDataNode%]::[0, 1, 2]
>> Event Detail:CacheRebalancingEvent [cacheName=ASSET_GROUP_CACHE, part=2, 
>> discoNode=TcpDiscoveryNode [id=1bb17828-3556-499f-a4e6-98cfdc1d11fb, 
>> addrs=[0:0:0:0:0:0:0:1, 10.113.14.98, 127.0.0.1], sockAddrs=[], 
>> discPort=47501, order=2, intOrder=2, lastExchangeTime=1568357181089, 
>> loc=false, ver=2.6.0#20180710-sha1:669feacc, isClient=false], 
>> discoEvtType=12, discoTs=1568357376683, discoEvtName=NODE_FAILED, 
>> nodeId8=499400ac, msg=Cache rebalancing event., 
>> type=CACHE_REBALANCE_PART_DATA_LOST, tstamp=1568357376726]
>> primary partition size after loss:1024
>> Lost partion Nos.4
>> IgniteThread [compositeRwLockIdx=1, stripe=-1, plc=-1, 
>> name=exchange-worker-#42%springDataNode%]::[0, 1, 2, 4]
>> Event Detail:CacheRebalancingEvent [cacheName=ASSET_GROUP_CACHE, part=4, 
>> discoNode=TcpDiscoveryNode [id=1bb17828-3556-499f-a4e6-98cfdc1d11fb, 
>> addrs=[0:0:0:0:0:0:0:1, 10.113.14.98, 127.0.0.1], sockAddrs=[], 
>> discPort=47501, order=2, intOrder=2, lastExchangeTime=1568357181089, 
>> loc=false, ver=2.6.0#20180710-sha1:669feacc, isClient=false], 
>> discoEvtType=12, discoTs=1568357376683, discoEvtName=NODE_FAILED, 
>> nodeId8=499400ac, msg=Cache rebalancing event., 
>> type=CACHE_REBALANCE_PART_DATA_LOST, tstamp=1568357376736]
>> primary partition size after loss:1024
>> Lost partion Nos.5
>> .
>> .
>> .
>> .
>> IgniteThread [compositeRwLockIdx=1, stripe=-1, plc=-1, 
>> name=exchange-worker-#42%springDataNode%]::[0, 1, 2, 4, 5, 6, 7, 11, 13, 17, 
>> 22, 26, 28, 29, 30, 33, 34, 37, 38, 41, 43, 45, 47, 48, 49, 50, 55, 58, 61, 
>> 62, 64, 65, 68, 70, 71, 75, 77, 79, 81, 82, 85, 87, 88, 89, 90, 93, 100, 
>> 101, 102, 104, 110, 112, 114, 116, 121, 123, 125, 126, 132, 133, 135, 137, 
>> 138, 139, 140, 144, 145, 146, 147, 149, 150, 151, 154, 156, 157, 158, 163, 
>> 164, 165, 169, 170, 172, 173, 176, 178, 180, 182, 183, 184, 185, 195, 196, 
>> 198, 199, 203, 204, 212, 213, 215, 217, 219, 220, 222, 223, 224, 226, 227, 
>> 230, 233, 234, 236, 237, 240, 242, 245, 248, 250, 251, 253, 255, 257, 258, 
>> 263, 265, 266, 267, 269, 270, 272, 273, 275, 276, 277, 278, 281, 282, 283, 
>> 287, 288, 292, 293, 295, 296, 297, 298, 300, 301, 302, 305, 308, 309, 310, 
>> 311, 313, 314, 315, 318, 319, 320, 322, 323, 324, 326, 327, 328, 329, 330, 
>> 331, 332, 333, 336, 340, 342, 344, 347, 348, 349, 351, 352, 353, 354, 355, 
>> 357, 362, 364, 369, 370, 371, 373, 374, 375, 376, 380, 382, 383, 387, 389, 
>> 394, 395, 396, 397, 398, 401, 402, 403, 407, 408, 409, 410, 411, 412, 413, 
>> 416, 417, 421, 424, 425, 427, 430, 431, 433, 435, 437, 438, 439, 440, 441, 
>> 442, 443, 445, 446, 452, 454, 455, 456, 459, 461, 463, 466, 470, 472, 474, 
>> 475, 476, 480, 481, 482, 484, 485, 489, 492, 494, 495, 496, 497, 498, 499, 
>> 501, 502, 503, 504, 505, 508, 510, 511, 512, 513, 514, 515, 516, 519, 523, 
>> 525, 526, 527, 529, 530, 531, 532, 535, 536, 539, 540, 541, 543, 545, 546, 
>> 550, 552, 553, 555, 557, 560, 569, 572, 573, 575, 576, 579, 582, 589, 591, 
>> 593, 594, 597, 599, 602, 603, 604, 605, 607, 608, 610, 612, 613, 614, 615, 
>> 616, 617, 619, 622, 624, 625, 626, 627, 630, 631, 632, 633, 634, 635, 636, 
>> 637, 638, 639, 640, 641, 642, 643, 645, 646, 647, 648, 649, 652, 653, 654, 
>> 656, 657, 660, 662, 663, 666, 668, 669, 670, 671, 679, 681, 683, 686, 688, 
>> 691, 693, 698, 701, 702, 703, 705, 706, 709, 712, 713, 716, 717, 719, 721, 
>> 723, 726, 730, 737, 738, 740, 741, 742, 745, 747, 750, 752, 755, 756, 759, 
>> 760, 761, 763, 764, 765, 766, 767, 768, 770, 771, 772, 777, 779, 785, 786, 
>> 789, 790, 792, 793, 794, 799, 801, 804, 811, 816, 818, 822, 823, 824, 825, 
>> 826, 827, 832, 833, 836, 838, 840, 841, 843, 844, 846, 850, 851, 852, 853, 
>> 855, 856, 858, 862, 864, 867, 872, 873, 876, 877, 878, 879, 883, 884, 886, 
>> 887, 890, 892, 895, 897, 898, 899, 900, 902, 903, 904, 905, 906, 907, 908, 
>> 910, 914, 916, 918, 919, 920, 921, 922, 925, 926, 928, 929, 933, 935, 936, 
>> 939, 940, 943, 945, 950, 951, 952, 953, 960, 961, 963, 964, 966, 967, 972, 
>> 973, 975, 977, 979, 980, 982, 983, 984, 985, 987, 989, 991, 992, 995, 996, 
>> 999, 1002, 1003, 1005, 1007, 1011, 1014, 1015, 1016, 1018, 1020, 1021]
>> Event Detail:CacheRebalancingEvent [cacheName=ASSET_GROUP_CACHE, part=412, 
>> discoNode=TcpDiscoveryNode [id=1bb17828-3556-499f-a4e6-98cfdc1d11fb, 
>> addrs=[0:0:0:0:0:0:0:1, 10.113.14.98, 127.0.0.1], sockAddrs=[], 
>> discPort=47501, order=2, intOrder=2, lastExchangeTime=1568357181089, 
>> loc=false, ver=2.6.0#20180710-sha1:669feacc, isClient=false], 
>> discoEvtType=12, discoTs=1568357376683, discoEvtName=NODE_FAILED, 
>> nodeId8=499400ac, msg=Cache rebalancing event., 
>> type=CACHE_REBALANCE_PART_DATA_LOST, tstamp=1568357423500]
>> primary partition size after loss:1024
>> Lost partion Nos.524
>> IgniteThread [compositeRwLockIdx=1, stripe=-1, plc=-1, 
>> name=exchange-worker-#42%springDataNode%]::[0, 1, 2, 4, 5, 6, 7, 11, 13, 17, 
>> 22, 26, 28, 29, 30, 33, 34, 37, 38, 41, 43, 45, 47, 48, 49, 50, 55, 58, 61, 
>> 62, 64, 65, 68, 70, 71, 75, 77, 79, 81, 82, 85, 87, 88, 89, 90, 93, 100, 
>> 101, 102, 104, 110, 112, 114, 116, 121, 123, 125, 126, 132, 133, 135, 137, 
>> 138, 139, 140, 144, 145, 146, 147, 149, 150, 151, 154, 156, 157, 158, 163, 
>> 164, 165, 169, 170, 172, 173, 176, 178, 180, 182, 183, 184, 185, 195, 196, 
>> 198, 199, 203, 204, 212, 213, 215, 217, 219, 220, 222, 223, 224, 226, 227, 
>> 230, 233, 234, 236, 237, 240, 242, 245, 248, 250, 251, 253, 255, 257, 258, 
>> 263, 265, 266, 267, 269, 270, 272, 273, 275, 276, 277, 278, 281, 282, 283, 
>> 287, 288, 292, 293, 295, 296, 297, 298, 300, 301, 302, 305, 308, 309, 310, 
>> 311, 313, 314, 315, 318, 319, 320, 322, 323, 324, 326, 327, 328, 329, 330, 
>> 331, 332, 333, 336, 340, 342, 344, 347, 348, 349, 351, 352, 353, 354, 355, 
>> 357, 362, 364, 369, 370, 371, 373, 374, 375, 376, 380, 382, 383, 387, 389, 
>> 394, 395, 396, 397, 398, 401, 402, 403, 407, 408, 409, 410, 411, 412, 413, 
>> 416, 417, 421, 424, 425, 427, 430, 431, 433, 435, 437, 438, 439, 440, 441, 
>> 442, 443, 445, 446, 452, 454, 455, 456, 459, 461, 463, 466, 470, 472, 474, 
>> 475, 476, 480, 481, 482, 484, 485, 489, 492, 494, 495, 496, 497, 498, 499, 
>> 501, 502, 503, 504, 505, 508, 510, 511, 512, 513, 514, 515, 516, 519, 523, 
>> 525, 526, 527, 529, 530, 531, 532, 535, 536, 539, 540, 541, 543, 545, 546, 
>> 550, 552, 553, 555, 557, 560, 569, 572, 573, 575, 576, 579, 582, 589, 591, 
>> 593, 594, 597, 599, 602, 603, 604, 605, 607, 608, 610, 612, 613, 614, 615, 
>> 616, 617, 619, 622, 624, 625, 626, 627, 630, 631, 632, 633, 634, 635, 636, 
>> 637, 638, 639, 640, 641, 642, 643, 645, 646, 647, 648, 649, 652, 653, 654, 
>> 656, 657, 660, 662, 663, 666, 668, 669, 670, 671, 679, 681, 683, 686, 688, 
>> 691, 693, 698, 701, 702, 703, 705, 706, 709, 712, 713, 716, 717, 719, 721, 
>> 723, 726, 730, 737, 738, 740, 741, 742, 745, 747, 750, 752, 755, 756, 759, 
>> 760, 761, 763, 764, 765, 766, 767, 768, 770, 771, 772, 777, 779, 785, 786, 
>> 789, 790, 792, 793, 794, 799, 801, 804, 811, 816, 818, 822, 823, 824, 825, 
>> 826, 827, 832, 833, 836, 838, 840, 841, 843, 844, 846, 850, 851, 852, 853, 
>> 855, 856, 858, 862, 864, 867, 872, 873, 876, 877, 878, 879, 883, 884, 886, 
>> 887, 890, 892, 895, 897, 898, 899, 900, 902, 903, 904, 905, 906, 907, 908, 
>> 910, 914, 916, 918, 919, 920, 921, 922, 925, 926, 928, 929, 933, 935, 936, 
>> 939, 940, 943, 945, 950, 951, 952, 953, 960, 961, 963, 964, 966, 967, 972, 
>> 973, 975, 977, 979, 980, 982, 983, 984, 985, 987, 989, 991, 992, 995, 996, 
>> 999, 1002, 1003, 1005, 1007, 1011, 1014, 1015, 1016, 1018, 1020, 1021]
>> Event Detail:CacheRebalancingEvent [cacheName=ASSET_GROUP_CACHE, part=413, 
>> discoNode=TcpDiscoveryNode [id=1bb17828-3556-499f-a4e6-98cfdc1d11fb, 
>> addrs=[0:0:0:0:0:0:0:1, 10.113.14.98, 127.0.0.1], sockAddrs=[], 
>> discPort=47501, order=2, intOrder=2, lastExchangeTime=1568357181089, 
>> loc=false, ver=2.6.0#20180710-sha1:669feacc, isClient=false], 
>> discoEvtType=12, discoTs=1568357376683, discoEvtName=NODE_FAILED, 
>> nodeId8=499400ac, msg=Cache rebalancing event., 
>> type=CACHE_REBALANCE_PART_DATA_LOST, tstamp=1568357423500]
>> primary partition size after loss:1024
>> Lost partion No.524
>>
>> The number of lost partitions  gets increment on each consecutive event call 
>> and the last many calls to listener have complete list of lost partitions.
>> Questions: 1)Is there any way get list of complete lost partitions? Because 
>> I want start cache loading for these partitions. Its getting difficult to 
>> determine when to call cache loading due event call on per partition.
>>                     2)I want reset only partitions using 
>> resetLostPartitions() those I have handled in partition lost event listener.
>>
>> Thanks,
>> Akash

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